.\ 2.1.. . 1:19 . a 91.”. , .. ,. fizmmuaéwdbiéumw. ; #5.» a use 6.5... I. a... . .fi... :33. .911. .3 a 3?... :15. . ....$r...z.£. .3.....:fl #9....3-{I‘1a‘flmfwfiunfl 3.2 k... :1... z. l. i5 .1 I i... ‘ alt..- .u 1: :3 . 521:: .34 Ali; 01...! I a. V i N...“ maxi... i hut. 2:. 5.. .....S...... LI!!.I. 1.la‘ ‘ «:30; e: . I... i. Ed. 52:! al :1: A 5 I... .v ! 3 . .1 u .342: .Waenr 2.... z 4 It I 4.! . 1 2.393....“ hark .. 2.: 24:3. 22. . . i. .. ($.25: .12»..- :u i4... 1.: is itii . :6. 1. x. 3} \v'» A? It? lavivi .1}: .tuq‘Jr. 3;... hawhfrhui l 2 LIBRARY 100 (a Michigan State University This is to certify that the thesis entitled A COMPREHENSIVE NUTRIENT MANAGEMENT PLAN ON MICHIGAN STATE UNIVERSITY FARMS presented by ANN MARIE SHATTUCK has been accepted towards fulfillment of the requirements for the MS. degree in Agricultural Technology and Systems Management flea/a“? Major Professor’s Signature [2/15/03 Date MSU is an Affirmative Action/Equal Opportunity Institution PLACE IN RETURN Box to remove this checkout from your record. TO AVOID FINES return on or before date due. MAY BE RECALLED with earlier due date if requested. DATE DUE DATE DUE DATE DUE 2/05 p:/CIRC/DateDue.lndd-p.1 A COMPREHENSIVE NUTRIENT MANAGEMENT PLAN ON MICHIGAN STATE UNIVERSITY FARMS By Ann Marie Shattuck A THESIS Submitted to Michigan State University in partial fulfillment of the requirements for the degree of MASTERS OF SCIENCE Agricultural Technology and Systems Management 2003 ABSTRACT A COMPREHENSIVE NUTRIENT MANAGEMENT PLAN ON MICHIGAN STATE UNIVERSITY FARMS By Ann Marie Shattuck The increased intensification of the livestock industry and the segregation from crop production farms has left a nutrient imbalance. Nonpoint source phosphorus is the primary source of pollution degrading water quality (Kerr et a1, 2001). Implementation of a Comprehensive Nutrient Management Plan (CNMP) assists in balancing phosphorus (P) inputs with phosphorus outputs. The development and implementation of a CNMP is one way Michigan plans to improve water quality and decrease P problems in waterways. Michigan State University is part of the group that developed and supports the use of Generally Accepted Agricultural Management Practices, GAAMPS. GAAMPS encourages manure management system plans. The development of a CNMP on MSU farms revealed an imbalance of P production by animals to P removal by plants. Analyses of field soil test levels for the previous ten years revealed an overall increase in Soil Test Phosphorus (STP) levels, reflecting an unbalanced nutrient system. Because of the vast information and the differing management techniques on the individual facilities development of the CNMP was a challenge. Two software programs being utilized in Michigan to assist in CNMP development were assessed for user friendliness and data output. The Purdue Manure Management Planner (MMP) and the MSU nutrient management program (MSUnm) both have beneficial aspects dependent upon the needs of the producer. ACKNOWLEDGEMENTS I would like to send a note of thanks to everyone who assisted in gathering and analyzing the data, as well as those who persisted in the gentle urging for progress on this paper. I would like to thank Dr. von Bemuth for all of his assistance and understanding, as well as my other committee members, Dr. Kurt Thelen, Dr. David Beede, Dr. Maynard Hogberg, and Bary Darling for their patience. A special note of thanks to the Land Management office, Kevin, Bary and Ben, for all of their assistance in collecting information for this paper, as well as to my family for their understanding, patience and continued prodding. I would also like to send a special note of thanks to my mom for her assistance throughout the entire project. Last but not least, I would like to thank my husband, Ron, for all of his love and support during the final stages of my paper. Thank you. iii TABLE OF CONTENTS LIST OF TABLES .................................................................................... v LIST OF FIGURES .................................................................................. vi CHAPTER 1 INTRODUCTION AND OBJECTIVES .......................................................... 1 CHAPTER 2 LITERATURE REVIEW ............................................................................ 3 CHAPTER 3 CNMP BACKGROUND ........................................................................... 18 CHAPTER 4 NUTRIENT PRODUCTION ON MSU FARMS ............................................... 24 CHAPTER 5 COMPARISON OF TWO SOFTWARE PROGRAMS ....................................... 27 CHAPTER 6 RESULTS AND DISCUSSION .................................................................. 32 CHAPTER 7 LIMITATIONS AND IMPLICATIONS OF A CNMP ON MSU FARMS ................ 37 CHAPTER 8 ......................................................................................... 39 CONCLUSIONS CHAPTER 9 RECOMMENDATIONS FOR MSU FARMS .................................................. 41 APPENDth CNMP ................................................................................. 43 BIBLIOGRAPHY ................................................................................... 65 iv TABLE 1: TABLE 2: TABLE 3: TABLE 4: TABLE 5: TABLE 6: TABLE 7: TABLE 8: TABLE 9: TABLE 10: TABLE 1‘ 1 : TABLE 12: TABLE 13: TABLE 14: TABLE 15: TABLE 16: TABLE 17: TABLE 18: LIST OF TABLES ANIMAL INVENTORY (2001) ................................................. 69 ANIMAL UNITS BASED ON ANIMAL INVENTORIES (1996- 2001) ................................................................................ 71 ANIMAL UNIT FACTORS ...................................................... 74 PHYSICAL AND QUANTITATIVE FEATURES OF FARM FIELDS .............................................................................. 75 MSU FARM FIELDS BEST FIT FOR WINTER APPLICATION OF MANURES ........................................................................ 78 MANURE APPLICATION RISK INDEX SUMMARY ................... 79 FARM FIELDS WITH CROPS AND YIELD GOALS ..................... 80 NUTRIENT PRODUCTION FOR 2001 USING 1985 MWPS-18 VALUES ........................................................................... 83 NUTRIENT PRODUCTION FOR 2001 USING 2000 MWPS—I 8 VALUES ........................................................................... 84 MANURE SPREADERS USED ON FARM ................................. 85 2001 MANURE TOTALS HAULED .......................................... 86 MANURE ANALYSIS ........................................................... 87 NUTRIENT PRODUCTION: MANURE ANALYSIS ...................... 88 CROP NUTRIENT REMOVAL ................................................ 89 NUTRIENT BALANCE ......................................................... 90 PHOSPHORUS CHANGE ...................................................... 91 SOIL TEST PHOSPHORUS LEVELS (1992-2002) ......................... 92 DIFFERENCES BETWEEN MSUNM AND PURDUE MMP IN DEVELOPMENT OF A CNMP ............................................... 102 FIGURE 1: FIGURE 2: FIGURE 3: FIGURE 4: FIGURE 4A: FIGURE 5: FIGURE 6: FIGURE 7: FIGURE 8: FIGURE 9: FIGURE 10: FIGURE 11: FIGURE 12: FIGURE 13: FIGURE 14: FIGURE 15: FIGURE 16: FIGURE 17: FIGURE 18: LIST OF FIGURES PHOSPOHRUS CYCLE ...................................................... 103 NITROGEN CYCLE ......................................................... ; 104 PHOSPHORUS CHANGE ................................................... 105 UNIVERSITY FARM FIELDS .............................................. 106 CHANGE IN ACRES ......................................................... 107 AERIAL PHOTOGRAPH OF MSU FARMLAND ....................... 108 TOPOGRAPHY MAP OF MSU FARMLAND ............................ 109 SOILS MAP OF MSU FARMLAND AREA ............................... 110 ANIMAL UNITS GRAPH .................................................... 112 SOIL TEST ANALYSIS GRAPH ............................................ 113 MAP OF FARM FIELDS CODED BY PHOSPHORUS LEVEL ....... 114 DAIRY NORTH AND SOUTH PITS, DIMENSIONS AND CAPACITY ....................................................................... 115 DAIRY HEIFER PIT, DIMENSIONS AND CAPACITY ................ 116 DAIRY MILKHOUSE AND PARLOR PITS, DIMENSIONS AND CAPACITY ...................................................................... 117 BEEF CATTLE RESEARCH CENTER PIT, DIMENSIONS AND CAPACITY ...................................................................... 118 OLD SWINE FARM PITS, DIMENSIONS AND CAPACITY .......... 119 NEW SWINE FARM SLURRY TANK, DIMENSIONS AND CAPACITY W/ FACILITY LAYOUT ....................................... 120 EMERGENCY PHONE LIST .................................................. 121 BEEF CATTLE RESEARCH CENTER FACILITY LAYOUT AND FLOW DIRECTION ............................................................ 122 vi FIGURE 19: DAIRY FARM FACILITY LAYOUTAND FLOW DIRECTION. . . . . 123 FIGURE 20: HORSE RESEARCH FACILITY LAYOUT ................................ 124 FIGURE 21: PAVILION FOR AGRICULTURE AND LIVESTOCK EDUCATION ..................................................................... 125 FIGURE 22: POULTRY RESEARCH CENTER ........................................... 126 FIGURE 23: SHEEP RESEARCH CENTER ................................................ 127 FIGURE 24: OLD SWINE RESEARCH CENTER ......................................... 128 FIGURE 25: PUREBRED BEEF FACILITY OR COW-CALF FACILITY. . . . . . . 129 Vii CHAPTER 1: INTRODUCTION AND OBJECTIVES The once picturesque scene of cattle grazing in open pastures has been greatly transformed over the last 30 years. The onset of technology has brought many changes in all aspects of the industry, especially in agriculture. The farming system has gone from diverse, open range production to more industrialized confinement facilities designed to increase production while decreasing production cost. This has been accomplished by improving efficiency with larger animal confinement operations that allow for the production of more animals on less land. Because of the additional amount of manure being generated in smaller areas, producers must develop new manure handling and distribution systems. The trend toward larger livestock operations is driven primarily by economies of scale (Michigan Agricultural Commission, 2002). Industrialization of the livestock industry has allowed for increased efficiency, producing more head per unit of time, feed or space. Increased productivity allows for more animals to be run through the system, resulting in greater profit because of a larger output. AS a result, the number of livestock units per livestock operation has increased over the last thirty years. Approximately 450,000 livestock operations confine animals in the United States. As of 1992, 6,600 of these livestock operations contained more than 1,000 animal units (AU) (Unified National Strategy for Animal Feeding Operations, 1999). The trend of increasing operation size is likely to continue. Michigan State University (MSU) farms, located south of campus in East Lansing, are a large sprawling complex system of cropland and livestock facilities. MSU farms consist of nine individual facilities with six different species of animals, horse, poultry, sheep, mink, swine and cattle, totaling 6,684 head or 1,798 AU in 2001. Approximately 1400 acres of land are utilized by MSU farms for crop production and manure applications. A wide variety of crops are grown primarily to feed the MSU farms livestock. The management of nutrients from livestock manure with crop requirements requires a high degree of management and can be accomplished by implementing a CNMP. A CNMP includes a full accounting of the phosphorus (P) contained in livestock manure or imported as fertilizer. An operation that meets the goal of P balance will have equal amounts of P inputs, such as manure and fertilizer and P removal by harvested crop. Ultimately, maintaining soil test P levels in compliance with GAAMPS further requires that STP levels remain below 300 pounds/acre if manure is to be applied. Maintaining this level demonstrates the test of balance. The objectives of this project are to: 0 Determine the total manure P generated by animals at the MSU farms campus, and to estimate the P removed by the crops to which the manure is applied; 0 Analyze the past 10 years of soil test data to see if soil P levels are within the limits established in the GAAMPS and whether there is any change in levels; 0 Develop a CNMP for MSU farms; and, 0 Compare the two most popular sofiware packages used for CNMP development in Michigan. CHAPTER 2: LITERATURE REVIEW The farming system has changed over the years, from diverse, open range production to more industrialized, confinement facilities. Confinement operations allow for the production of more livestock per acre of land, resulting in cheaper food prices at the market. With this change in farm operations also comes a change in manure handling and management. The once picturesque scene of cattle grazing on open pastures has been transformed dramatically over the last thirty years. Because of the change in livestock farm operations to more confined conditions, the management of manure nutrients has become a large environmental concern. Confined animal feeding operations typically import a majority of their livestock feed; while that helps to maximize production, it results in a net input of nutrients. Efficiencies of feed conversion to animal product are not 100% and thus manure is produced (Mullinax, et al., 1998). Manure contains a large percentage of the nutrients fed to the animal. Depending on the species of animal, 70-80% of the nitrogen (N), 60-85% of the phosphorus (P), and 80-90% of the potassium (K), fed to animals will be excreted as manure (MDA, 2002). Since many confinement operations do not produce all of their own feed and are located in grain deficit areas, feed nutrients are imported while manure nutrients are not always exported to the location of crop production where the nutrients could best be utilized (Wood, et al., 1996). Agricultural production systems are specialized. Specialization separates crop production fiom livestock production (J anzen, et al., 1999). The geographic separation and the cost to transport manure to the fields exacerbates the manure management problem. Instead, manure is applied to the parcels of land available, often exceeding crop nutrient requirements (USDA, EPA, 1999). Continuous application of manure beyond crop requirements leads to P buildup in the soil. A survey of farms on the east coast found that nine out of ten farms surveyed have high soil test phosphorus (STP) levels (Comis, 1999). High STP levels are a result of nutrient applications greater than nutrient removal in crops. Sustainability of a farm requires both ecological and economic considerations to be in balance. A phosphorus balance developed for 33 Nebraska confinement livestock farms found 17 with significant P imbalances (Koelsch and Lesoing, 1999). They observed that nutrient inputs in the form of feed and fertilizer were 2 to 4 times greater than nutrient outputs. Phosphorus has no gaseous state, so when applied to soil in excess of the removal rate, it accumulates. The phosphorus cycle shows the movement of phosphorus in the environment (Figure 1). As the amount of accumulated P increases, so does the potential for surface water pollution from erosion and runoff. It has also been established that in high concentrations P will move with water flow through the soil, infiltrating groundwater systems (Busman, et al. 2001). Nitrogen, on the other hand, easily volatilizes into the atmosphere in several different gaseous compounds, or readily leaches through the soil profile, but tends not to accumulate in soil (Figure 2). Furthermore, most non-leguminous agricultural crops use approximately twice as much nitrogen as phosphorus during the growing cycle. As the crop residue decomposes, almost all phosphorus returns to the soil, while only a fi'action of the nitrogen is returned. The disproportionate level of P to N applied and maintained in the soil are likely to cause more significant nutrient imbalances in the future. Farm nutrient imbalances continue to be a hindering issue in the livestock industry. A potential resolution is to transport nutrients greater distances to areas of need. Specialized livestock production systems must be in contact with their crop production counterparts in order to complete the cycle or balance the production system. In some cases, this requires manure nutrients to be transported long distances, even beyond the break-even distance where manure nutrient value meets the cost of transportation (J anzen, et al., 1999). Transportation will become an even greater issue as regulations are expanded and strengthened. The continuous over application of manure nutrients has brought many soils to the point of P saturation. Over fertilization of P causes the availability or solubility in soils to increase and in turn increase P mobility with water (Jacobs, 1995). Phosphorus saturated soils do not have the ability to bind or fix additional nutrients, thus P is free to move with water in runoff or to percolate through the soil profile. When soil is eroded, the P absorbed to the soil particle is also transported. STP levels greater than 150 parts per million (ppm) are categorized as high and are likely to lose some nutrients to the surrounding landscape, via runoff, erosion or leaching. Over application of P will increase potential economic loss and environmental degradation. To maintain sustainability, manure nutrients should be applied at crop removal rates. This is difficult due to the disproportion of manure nutrients to crop needs. Manure nutrients are typically expelled from the animal at a ratio of P: N of 1:1, crop requirements of P: N are typically in a ratio of 1:2, however when the ratio of manure nutrients when applied are P: N of 2:1 (Powell, et al., 2001). The imbalance of manure production concentrations to crop needs creates a problem when trying to meet all crop requirements with only manure. Also, depending on the manure handling technique of the farm, the proportion of manure nutrients, P: N can be even greater. This increased difference is primarily due to the volatilization of nitrogen (N) gases to the atmosphere, which decreases the nitrogen content of the manure, complicating the nutrient balance issue even further. The over application of manure has led to the buildup of manure nutrients in soils, and increased the risk of environmental problems. Phosphorus contamination comes from point sources, sewage treatment plants and factories and non point sources such as agriculture and urban runoff. Over the last two decades, point sources of contamination have markedly decreased due to the ban of phosphorus in detergents and the onset of the National Pollutant Discharge Elimination System, requiring permits for discharging into water resources. The Federal Clean Water Pollution Control Act of 1972 implemented the use of permits to control the discharge of pollutants into surface waters (Department of Environmental Quality, 2002). However, nutrients in surface waters continue to be a major problem. Several water quality problems have been linked to nutrient enrichment, primarily from agriculture (EPA841-F-96-004A, 2001). Prior to intensification of livestock, many states based manure application rates on nitrogen. Balancing for nitrogen typically resulted in the over application of phosphorus, even though farms were more diversified, and manure was spread over larger areas. Phosphorus levels increased from years of over application, although increases may not have been as dramatic as seen today in some confinement facilities. The current excess of P inputs over exports indicates a need for adjustment in P management to further reduce the imbalance (Bundy, 1998). Agriculture is the primary contributor of nonpoint source pollution in the United States today (EPA841-F-96-004A, 2001). Non point source pollution implies that there is not a point source location that can be identified which is directly responsible for the contamination, however the source of pollution is dispersed, sometimes over thousands of miles (U SGS, 2001). The National Water Quality Inventory indicates that agriculture is the leading contributor to water quality impairments, degrading 60 percent of the impaired river miles and half of the impaired lake acreage surveyed by states, tenitories and tribes (EPA841-F-96-004A, 2001). The primary reason for the degradation of water resources from agriculture is due to the over application and stockpiling of manure nutrients. Estimated annual P losses in runoff and erosion represent approximately 1.6% of the P applied each year or an average loss of 0.3lb P per cropland acre (Bundy 1998). Applying P beyond production requirements is detrimental from both environmental and economic viewpoints (Waskom, 1994). Some farms have elected the quickest approach to manure hauling and consistently haul manure to the field closest to the source, which results in enrichment of soil P. Excessive manure loading can cause excessive nitrate levels in groundwater and phosphorus accumulation in the upper soil profile, increasing the incidence of nonpoint source pollution (Jacobs, 1995). Many water quality problems are the result of phosphorus buildup in soils and the mismanagement of manure. Today, many states have evolved to a more phosphorus restrictive approach for manure and nutrient applications. However there continue to be water quality concerns due to P-enrichment. Phosphorus enrichment of waterways causes aesthetic, recreational, and water utilization issues. Phosphorus is generally the limiting nutrient, the nutrient lacking for organic production, for plant grth in most water resources. Thus when phosphorus is added, plants grow rapidly. The accelerated plant growth reduces light and can hinder the quality of the reservoir’s natural food chain (Waskom, 1994). As the vegetation begins to decay, aerobic or facultative organisms utilize a large amount of dissolved oxygen in the water, diminishing available oxygen for other organisms, such as fish. In many instances, these fish will move to other areas or suffocate and die from asphyxiation (USDA, 1992). The excess plant growth and diminished dissolved oxygen leads to the early aging or eutrophication of surface water resources, reducing the quality and quantity of natural surface waters. Another problem being linked to phosphorus is the occurrence of pfisteria in the Chesapeake Bay area. There has been no other link found for the pfisteria outbreaks except the rising levels of P in soils (Comis, 1999). This means high manure applications, loading of phosphorus in soils, and the subsequent runoff and erosion of those soils may cause health concerns for humans and animals from increased bacteria in the water. There is a link between high STP levels in soils and subsequent P levels in runoff (SERA—l7, 2000). The instance of high STP levels, especially in water sensitive areas, will result in the movement of P and degradation of nearby water sources. There are issues and consequences with enriching the nation’s surface waters with phosphorus. In 1997, Senator Harkin introduced a bill initiating regulations on management of phosphorus. The data show applying manure to meet the crop nitrogen requirement creates excess phosphorus loading resulting in numerous water quality issues, especially in sensitive areas (Copeland, 1997). Until the introduction of the Harkin bill, many states based manure application on crop N needs. Some states continue to base manure applications on N, however, many have changed to a phosphorus-based standard. Since 1988 Michigan has based manure application rates on phosphorus except for soils with low (<75 ppm) soil test phosphorus levels (MDA, 2002). Michigan, known as the Great Lake State, has set voluntary regulations for producers. The Great Lakes comprise the largest system of fresh surface water on the planet and provide over 10,000 miles of shoreline (EPA, 2002). In its attempt to reduce phosphorus enrichment of water sources Michigan has adopted a zero discharge policy of nutrients into water resources (Manure Management, 2001). Application of nutrients beyond crop requirements has no benefit to the crop but can be detrimental to natural resources. In 1987 The State of Michigan, amended the Right -to —Farm Act (R to F) to include generally accepted agricultural management practices (GAAMPS). There are several sets of GAAMPS, but the most applicable to livestock operations are for manure management and for citing of new and expanding livestock operations (MDA, Site Selection GAAMPS, 2002). In 1988, GAAMPS established phosphorus as the base upon which manure would be applied. In special circumstances where soil phosphorus levels are low (below 150 lbs Bray P1 per acre [75 ppm]), manure application to soil is limited by plant nitrogen needs. Where soil phosphorus is high (above 300 lbs Bray Pl per acre [150 ppm]), manure may not be applied. In most cases, the soil P is between 150 and 300 lb per acre, and the amount of manure applied is limited to the amount of P the plant will remove from the land (MDA, Manure GAAMPS, 2002). These are specified soil test phosphorus ranges for manure application rates dependent upon the soil test phosphorus level of a field. Most recently, in 2002, the State of Michigan came to an agreement with the United States Environmental Protection Agency (U SEPA) that all livestock operations with 1000 or more animal units must take one of two avenues for environmental assurance. The producer must either seek environmental assurance through the Michigan Agricultural Environmental Assurance Program (MAEAP), or seek a general National Pollutant Discharge Elimination Program (NPDES) permit (Scott Piggott, 2000). In either case, a Comprehensive Nutrient Management Plan (CNMP) must be developed for the livestock operation. The smaller livestock producer can utilize the standards set by GAAMPS as a guideline for manure management. However, a more complete analysis for potential P-movement would be to utilize a soil phosphorus index, which takes other potential factors of phosphorus loss into consideration. A soil phosphorus index takes more factors into account when predicting the potential for phosphorus movement than just a soil test level and several versions have been adopted in other states. A phosphorus index includes factors that assess the potential for P delivery from fields. Some factors used in this assessment include, soil erosion, slope gradient and length, soil runoff class, distance to water drainage, tillage, vegetation, as well as the soil phosphorus level (Mallarino, et al., 2000). When all of these factors are analyzed, each field is given a rating on its potential for phosphorus loss. This rating can be utilized to determine which fields have the highest risk of phosphorus loss. High-risk fields should be used as a last resort for manure application or only in ideal weather and soil conditions. The implementation of a soil phosphorus risk index requires an individual assessment of each field. However it gives a more accurate analysis of which fields have the highest potential for P-movement. Natural Resource Conservation Service (NRCS) and Dr. Robert von Bemuth developed the Manure Application Risk Index (MARI) in 1998 as a part of the CNMP process (http://www.maeap.org/mari_oct02.xls). MARI is a modified version of the P index being utilized in Michigan as part of the CNMP process for manure application. 10 MARI is used to identify fields with high P movement potential. The Michigan Agricultural Environmental Assurance Program (MAEAP) has adopted MARI to address water quality concerns from P enrichment. The goal of MARI is to maintain a voluntary approach to meeting the national water pollution non-point standards. It is a tool for assessing the relative risk of applying manure and is useful in determining the order in which manure is applied to the fields (Grigar, Jerry, and Jay Blaire, 2001) The movement of nutrients into surface water is a preventable concern of animal production. According to 3 Census Report and survey done in Michigan, manure could provide 19% of the nitrogen, 37% of the phosphorus, and 25% of the potassium, for Michigan’s primary crops (von Bemuth & Salthouse, 1999). Phosphate production from manure is in deficit by 24Kg/Ha before fertilizer. When fertilizer is considered, the state is in excess by 15Kg/Ha. Sixty-nine of Michigan’s 83 counties are in excess by 25 Kg/Ha or more, and most are lakeshore counties. The excess areas tend to be geographically separated from the areas in need of nutrients (von Bemuth & Salthouse, 1999). Michigan as a whole is not much different from the national perspective. Although Michigan is not in excess of manure nutrients, problems exist because of uneven distribution of the nutrients. Nationally this is the root of the problem as well; the geographic segregation from where nutrients are produced to where they are deficient for crop production. Phosphorus in Soils The Bray P1 soil test is the primary analysis of soil phosphorus levels adopted in the Midwest. Bray P1 measures only a portion of the phosphorus in the soil. Although 11 the Bray Pl does not give the exact level of soil phosphorus in acid soils, it gives a much more representative sample than that of the other two primary soil tests used, Olsen P and Melich III. The Olsen P soil test is used primarily in calcareous soils, and the Melich 111 soil test is considered universal across any pH soil for phosphorus and other nutrients. The Bray P1 test is most widely used in the acidic soils of the Corn Belt because it is better adapted to soil pH less than 7.4 (Sawyer et al., 2003). As mentioned, Bray P1 only measures a portion of the phosphorus in soils. Most of the phosphorus not measured by this test is bound by other elements in the soil. Phosphorus, typically taken up by the plant as phosphate ions, HzPO4' and HPO42', readily binds with positively charged cations in the soil profile. Minerals such as Al3+ and Fe2+ readily absorb the phosphate ion in acid soils, making them unavailable for plant uptake. In Calcareous soils, Ca3+ is the primary binding site for phosphate. Soil pH plays a large role in the availability of phosphorus to the plant. A pH range of 5.5-6.5 is the pH of maximum plant phosphorus uptake (Garcia, 1999). When the soil pH is above or below this range, phosphorus uptake is reduced. Another factor affecting phosphorus availability is soil type. F inc-textured or clay soils typically have the capacity to absorb or fix more phosphorus than coarse or sandier soils (Garcia, 1999). The capacity to absorb large quantities of P is due to the increased surface area of the soil to attach phosphate'ions. In coarser soils, less surface area results in fewer binding sites, and a reduced ability to fix large amounts of soil phosphorus. The soil type and pH are the two primary factors when determining the availability of phosphorus to the plant and the phosphorus concentration reported on the Bray P1, soil phosphorus test. 12 Various soil types will respond differently to manure applications and soil test levels because different soil types absorb different amounts of P. Thus when a farmer applies the same manure to two different fields, soil test levels could show very different levels. Some soils bind phosphorus to the extent that very little P is available for crop uptake (Tisdale, et a1, 1993). These soils require larger amounts of nutrients to meet the crop needs, primarily because soil minerals and soil particles bind most of the phosphorus applied. On the other hand, because coarser textured soils have fewer binding sites, more phosphorus is likely to be available to the plant. All soils have the potential to become saturated, resulting in the soils’ absorption sites being filled. The point of saturation varies with each soil and its respective mineral content and texture. Nutrients applied beyOnd the point of saturation do not become fixed, but move freely with water (Jacobs, 1995). In most instances, phosphorus moves with runoff or water moving laterally over the surface. However, there is the potential for phosphorus to leach through the soil profile and into shallow aquifers. This phenomenon has a higher likelihood of occurring in sandier soils, where there are few binding sites, or when organic matter is high. Organic matter occupies potential phosphorus binding sites, allowing P to leach further into the soil profile (USDA, 1992). The potential for phosphorus leaching occurs when there is an absence of available absorption sites. The range of soil types and minerals present will alter the predictability of phosphorus in soil. Predicting the soil test phosphorus level afier phosphorus additions is difficult and variable. Interactions of soil P are complex. The rate at which soil P levels change when phosphorus is added as manure or extracted by the plant depends on several factors. The factors to consider when dealing with soil phosphorus change are, soil pH, soil texture, 13 initial P soil test value, type of soil, crop removal, soil P buffering capacity, etc. Each of these factors plays an important role in the amount of P to be added or removed to change soil test P values. The general rule for the midwestem states is 18-201bs/acre of P205 added or removed to change the Bray P1 soil test by llb/ac. (Vitosh et al, 1995). In a paper from the Communications in Soil Science and Plant Analysis (Ontario), the average increase in P soil test was about lppm on the Olsen test for every 35kg/ha (~351bs/acre) of added P205 (Bates, 1997) found that an application of 4kg/ha (~4lbs/acre) was required to raise the extractable P of a medium textured Mollisol and Alfisol lkg/ha (2.29lb/acre P205). For sandy to clay loam textured Utisols, an application of 5-6kg P /ha (11.45-13.74lbs/acre P205) was required to raise the extractable P 1kg/ha (1 lb/acre or 2.29 lb PzOs/ac). But on clayey textured soils, 12kg P/ha (121bs/acre or 34.8 lbs P205/ac) was required to change the soil test values 1 kg/ha (Zenter et al). The P absorption characteristic of the soil and the initial P soil test value play a large role in how much phosphorus is extractable (Sera-l 7, Minimum P losses). Soils with strong sorption capacity will release less dissolved P at a given soil test value than those that have a weak sorption capacity. Strong sorption capacity soils will tend to bind P within the soil, not allowing it to be extracted, and thus not showing up on the soil test or being removed by the plant. Utilizing the general rules of P change will give guidance when looking at soil tests and deciding whether to add P or not, as well as when trying to reduce STP levels. These are general guidelines; each farm must be assessed on an individual basis to find specific phosphorus change levels. The initial level of P within a soil also plays an important role when trying to predict soil test P changes and applying nutrients. The greater the initial soil test P level, 14 the more the soil test level will change after application of a P source. Results have been obtained with absorption isotherms, which indicate that the increases in soil solution P are a curvilinear fimction of P addition rather than a linear function. When P applications are doubled and tripled, the relative increases of soil test levels were approximately 3 to 6 times greater. Information from both Gary M. Pierzynski, Professor, Soil and Environmental Chemistry Department of Agronomy at Kansas State University, and Bill Thom, Department of Agronomy, at the University of Kentucky have found similar results (communication via e-mail 10-27-2000). According to Pierzynski of Kansas State University, if initial STP is low, then it takes more P to raise the STP 1 lb/acre, than if the initial STP is high. Kansas State University has also done work on phosphorus extraction and the results are a bit more variable. Generally, however, if STP levels are high they decrease rapidly with crop removal. As you remove more P fi'om the system, eventually STP levels off, despite the fact that you continue to remove P. As STP becomes low, the soil buffering capacity comes into effect. This means that at a certain level even though P is still being removed, STP levels remain stationary. Phosphorus is being mineralized fiom fixed soil compounds or organic phosphorus is being released when STP is low. The soil P buffering capacity has also been seen in a 24-year study in Western Canada where the initial level of Olsen P was 19kg/ha and after 24 years of cropping without any phosphorus fertilizer application, the P content of the 0-15cm depths on a medium texture Orthic Brown Chemozemic soil, did not change. The phosphorus removed (exported from the system) in the grain of the wheat-averaged 3.5kg/ha/yr. It was believed that the P was being released from organic and inorganic P sources within the soil (Zetner et al). 15 Thom’s work has shown similar results. His study also looked at both soil test increase and soil test decrease related to P additions and removal, for a Belknap soil in western Kentucky (e-mail conversation 10-27-00). Table 16 and Figure 3 show the soil test phosphorus changes with the addition and extraction of phosphorus from the Belknap soil. Both the change in phosphorus levels with the addition and extraction are curvilinear functions, making phosphorus prediction complicated. The ideal of using one number to predict how much soil test values will change when a quantity of fertilizer is applied, gives us an estimate of where a fields’ levels will be the following year. Agriculture should be aware, however, that when Soil test levels are already high adding small amounts of P to that field will cause large increases in STP levels. Environmental Issues Many environmental clubs and associations believe laws for confined animal feeding operations (CAF Os) are too lenient. In 1995, a lagoon in North Carolina burst, obliterating aquatic life in the New River, due to the 23 million gallons of raw manure that was discharged (Sierra Club, 1999). This spill was catastrophic to the life that once inhabited the river. A major manure spill occurred in February of 2002 by Maple Ridge Dairy in Wisconsin. The Dairy applied 250,000 gallons of manure on 32 acres of frozen ground, causing manure to run off the field and disperse in unnamed tributaries of the Eau Pleine River (Sierra Club, 2002). The application of manure onto frozen ground greatly increases the risk of runoff. The Wisconsin Department of Natural Resources (DNR) has listed the Big Eau Pleine River as having too much bacteria and too little l6 oxygen since the winter 2002 spill. Both lack of oxygen and too many bacteria can lead to fish kills. Cargill Pork, Inc., in Missouri discharged hog waste directly into surface water, violating the Clean Water Act and killing more than 50,000 fish (Bomestein, 2002). Spills involving large volumes of manure from livestock facilities result in the degradation of water resources and cause the death of thousands of fish and aquatic species Some actions have been taken to try to minimize the issues created by large confinement operations. New regulations require producers to meet either Environmental Assurance through MAEAP guidelines or to obtain pollution permits; both require the development of a CNMP. As farms grow and number of livestock in confinement increases, water quality will be of greater concern unless action is taken to promote balanced farm systems and minimize soil and P-losses. The development of a CNMP can benefit producers by meeting nutrient requirements with manure rather than expending on commercial fertilizers. Meeting crop needs with available manure nutrients can save capital for the producer while reducing the potential for environmental degradation due to excess loading of nutrients to fields. Crop and livestock producers will benefit from the development and implementation of Comprehensive Nutrient Management Plans. 17 CHAPTER 3: CNMP BACKGROUND The concept of manure management and manure management plans is not new. It amounts to little more than an accounting for nutrients available through manure application that has been utilized for centuries. F onnalization in Michigan first came through the Manure Management GAAMPS. Comprehensive Nutrient Management Plans were described in the March 9, 1999, Unified Strategy for Animal Feeding Operations issued jointly by EPA and USDA (USDA, EPA, 1999). Section 3.2 of that document states the following: In general terms, A CNMP identifies actions or priorities that will be followed to meet clearly defined nutrient management goals at an agricultural operation. Defining nutrient management goals and identifying measures and schedules for attaining the goals is critical to reducing threats to water quality and public health from AF 0 ’s (animal feeding operations). The CNMP should fit within the total resource management objectives of the entire farm. CNMPs should address, as necessary, feed management, manure handling and storage, land application of manure and management, record keeping, and other utilization options. While nutrients are often the major pollutants of concern, the plan should address risks from other pollutants, such as pathogens, to minimize water quality and public health impacts from AF Us. In addition to protecting water quality and public health, CNMPs should be site-specific and be developed and implemented to address the goals and needs of the individual owner/operator, as well as the conditions on the farm... In August 2000, the Michigan Agricultural Environmental Assurance Program (MAEAP) Steering Committee approved CNMP’s as a component of MAEAP (http://www.maeap.org/). They defined a CNMP as “the production practices, equipment, and structure(s) that the owner/operator of and agricultural operation now uses and/or crop production in a manner that is both environmentally and economically 18 sound (MAEAP).” The CNMP is a planning tool, record of decisions, and documentation of land used for manure application. The basis for the CNMP as defined by MAEAP was the manure management system plan as developed by the Natural Resources Conservation Service (NRCS) with modifications as appropriate to the MAEAP program. A complete CNMP contains the following components: - Overview Farm Headquarters Map 0 Animal Outputs 0 Conservation Practices on Fields Used for Land Application 0 Land Application Management 0 Record of CNMP Implementation 0 Inputs to Animals--Feed Management (where applicable) 0 Alternative Utilization Activities (where applicable) - Inspection, Operation and Maintenance, Training 0 Schedule of Implementation 0 Emergency Action Plan - References - Appendices For the purposes of this study, perhaps the most significant section is the land application management. The three key elements of this section are nutrient budgets for nitrogen, phosphorus, and potassium; the determination of application rates; and the application schedule. Much of this study will focus on the nutrient budget for phosphorus because phosphorus is generally the limiting nutrient for manure application 19 on MSU farms. The driving force for nutrient budgeting is the production of manure as addressed in the animal outputs section. For that reason, the first analysis will be in animal outputs. Following are the MAEAP components and information that should be contained within each section. Overview An overview is a brief statement outlining the farm operation including goals, enterprises, and long-term plans for resource management. Farm Headquarters Map A site map showing locations of farm buildings, animal housing, manure storage structures, other sources of manure and wastewater, feed storage, farm house(s) and any other relevant physical features. Animal Outputs Record and assess all aspects of manure handling, including production, collection, storage, treatment, and transfer for application. Conservation Practices on Fields Used for Manure Application Evaluation of potential for nitrogen or phosphorus transport off-site includes evaluation of such faCtors as: soil, water quality, surface cover, and manure. Identifying sensitive areas, conservation and management practices needed for erosion control and water management to control off-site transport of nutrients, feasibility of winter manure application, maps showing sensitive areas, setbacks and locations of practices/activities. Land Application Management A nutrient budget for nitrogen, phosphorus and potassium from all sources should be assessed. 20 Calibration of application equipment and planned application schedule and application rates by field based on crop, yield goal, crop nutrient needs, soil test results, previous crop and if any nitrogen credits are applicable, manure and wastewater nutrient content, whether applying based on phosphorus or nitrogen, and special considerations need to be given for fields potentially used for winter spreading. At time of application, field- specific conditions (wet, dry, frozen, snow covered) should be considered and application rates adjusted accordingly. Record of CNMP Implementation Records should be kept by field and include: soil test reports, dates of manure/wastewater applications, sources and rate of all nutrients applied, dates of incorporation, method of application, acres and area of field applied, weather and field conditions during application, recommended nutrient application rates, previous crop grown and yields, plant tissue sampling and testing reports (where applicable), and pre-side dress nitrate test (PSNT) reports (where applicable). Other records such as manure/wastewater quantities produced and nutrient analysis results, inspection and maintenance reports, records of rental agreements or other agreements for application of manure/wastewater on land not owned by the producer and record of manure/wastewater sold or given away to other landowners (where applicable) should be kept. The Strategy establishes a national expectation that all animal feeding operations develop and implement comprehensive nutrient management plans by the year 2008 (Salazar, 1998) Inputs to Animals- Feed Management The management of animal diets that result in: - Optimum production and/or animal body maintenance 21 - Best economical use of feed materials - Minimize the amount of (recoverable) nutrients contained in manure. Alternative Utilization Activities (where applicable) Transport and environmentally sound off-site utilization, including such processes as power generation and conversion to value-added products (e. g. compost). Inspections, Operations & Maintenance Training This section should include: 1) schedule for inspection of structural and vegetative practices and equipment, and operation and maintenance practices/activities; 2) schedule for a review of management practices/activities to ensure implementation of plan; 3) a plan for training employees how to follow CNMP, including when training will be provided, such as: training new employees hired, new processes, procedures or equipment, and employee responsibilities. Schedule of Implementation The Schedule of Implementation includes new components that are planned and the implementation schedule for each new component as well as an annual review and update of plan as necessary. Emergency Action Plan An emergency action plan should include actions to take in the event of a spill, discharge, or failure of a collection, storage, treatment or transfer component as well as telephone numbers to report and seek assistance in the event of an emergency, and the anticipated flow paths in the event of a spill, discharge, or failure, shown on a site map. References Sources of information cited/used in the development of the plan 22 Appendices Copies of pertinent references cited in the plan, environmental documentation, as appropriate and other appropriate supporting documents not included in other parts of the plan (i.e., worksheets, forms, etc). 23 CHAPTER 4: NUTRIENT PRODUCTION ON MSU FARMS There are three generally accepted methods for estimating the nutrient production from animals. The first method, and likely the most accurate if adequate data are available, is mass balance. In this method, an accurate account is kept of the nutrients contained in the feed that the animals consume. In some cases this is done per animal per ration formulation, in other cases it is done per herd, and in a few cases it is done on a whole farm basis. This generally is easiest with P because no gaseous losses occur. Hence the amount of P consumed by the animal less the amount retained in the animal or excreted in milk and eggs equals the amount lost in the waste product. This requires careful maintenance of records, but is the best method for long term planning. Method 2 used to estimate animal outputs is to measure the quantity of manure produced and analyze manure samples to get a representative concentration of the nutrients contained within the manure. Knowing the amount of manure produced and the respective concentrations of nutrients, total nutrient production can be estimated. The shortcomings of this method are two-fold: 1) it is difficult to obtain truly representative samples, and 2) estimates of total volumes of manure are impacted by weather, bedding and accuracy of determination methods. This method is essential for determining load- by-load application rates. Method 3 of estimating animal outputs is by using representative average values known as book values. In this method reference charts such as shown in the GAAMPS for manure management, adopted from the 2000 Midwest Plan Service (MWPS-18, 2000) are used to estimate the total volume of manure and the amount of the individual nutrients produced. This method is probably the least accurate method, but does not 24 require as much testing or record keeping as the other two. This method does not account for various feed management strategies such as diets or supplements, but is currently acceptable if the other two methods are not available. MSU farms involve 36 sources of manure from nine different livestock facilities (Table 10). Because it is a research facility, there are innumerable diets fed for varying lengths of time, so attempting to compute a mass balance would be very difficult for the entire MSU farms. Hence, the determination of animal outputs will be based on the second and third methods. Method 2 utilizes manure analysis and tons or gallons hauled. The volume of manure hauled from each facility was calculated (Table 11). A representative manure sample was taken from each of the manure sources and analyzed (Table 10). The concentrations for each nutrient from analysis were then multiplied by the volume of manure hauled from each source to calculate the total nutrient production for N, P205 and K20 production from each of the manure sources. Utilizing manure analysis from the individual manure sources allows for specific farm management practices and feed differences to be seen, rather than simply basing production levels from book values. However, a precise record of manure volumes hauled must be kept in order to result in accurate production levels. Because of unrecorded manure applications, a close estimate was developed for the dairy barn. Method 3, book values, although the least specific for individual farm management practices, does give an estimated nutrient production level. Utilizing book values requires livestock numbers, species and production level, and a book value data source. There are two versions of the most commonly used source MWPS-18. The 1985 25 edition is significantly different from the 2000 edition. For this study, both editions were used and compared along with manure analysis values (Table 15). Because of the multiple livestock species and production levels, each facility was determined separately and then added as a whole. This method also required some estimation because mink and ferrets are not included as a livestock species. Production levels for these species were figured as 4-pound chicken layers. Quail body weights of 0.5 pounds and pheasants at 3 pounds were figured as 2-pound broiler chickens. Only one production weight is given for sheep and horses, in MWPS-18, so overestimation is likely because young animals were counted. Total P205 production estimates were 153,700 lbs by Method 2 (Table 13), about 143,000 lbs for method 3 using 1985 MWPS values (Table 8) and 128,000 lbs for method 3 using 2000 MWPS values (Table 9). 26 CHAPTER 5: COMPARISON OF TWO SOFTWARE PROGRAMS There are two primary software programs being utilized in Michigan to assist producers in the development and implementation of a CNMP. The two are the Manure Management Planner (MMP) developed by Purdue University and associates and the MSU Nutrient Management Program (MSUnm), developed by Michigan State University Faculty and Staff. Each program was designed with a specific use in mind and is being continuously updated. There is a large amount of data associated with a CNMP, and changes in the programs seriously complicate the process. The Purdue program was set up as a planning tool; it is not designed to be a record keeper. This program was to plan for manure generation, crops, animal number changes, and other planning aspects of an operation. MMP allows for manure management planning for 1-5 years. This allows for the opportunity to look at future goals and the probability of reaching them. MSUnm was designed specifically for record keeping, and not as a planner. This program designed to manage nutrients, was designed specifically for Michigan producers. MSUnm was designed to keep track of the information while allowing for some analysis and planning for the following year. This program keeps track of all aspects of the farm activities, including: manure spreading, pesticide management, crop yields, manure and soil test labs, fertilizer management and livestock information. All of this information can be stored and added to the MSUnm program. Both programs have aspects, which are beneficial to a producer. There is a lot of overlap between the two programs, and because each involves a large amount of data, producers should decide which program will best suit their needs and utilize just that one. 27 Data Differences/Errors MSUnm utilizes MWPS-18, 1985 manure nutrient values with in the program, while reports are reported using MWPS-18, 2000. Also in the Nutrient Balance Report there is a decimal error for the P205 production of a 1,000 lb lactating dairy cow, making the phosphorus production 1,000 times less than it should be. Fertilizer recommendations and crop nutrient needs for both programs appear to be very similar. Purdue uses MWPS-18 2000 manure nutrient values. Personal likes and dislikes The Purdue program is self explanatory and easy to utilize. Upon opening, program tabs appear across the screen, highlighting only those available, until a farm is set up. The MSUnm program is not especially difficult, but it is a DOS based program and takes a little longer to become acquainted with in the initial format. When beginning a new plan, MSUnm assumes the plan is developed for use by a Michigan farmer and has all relevant information specifically and exclusively for Michigan farmers. The Purdue program, on the other hand, was developed for use by the Midwest and thus contains information for the Midwest region. This requires the user to indicate the state and county for which the plan applies, in order to get soil information. The plan can be made from 1 to 5 years. The Purdue program is more versatile within the Midwest area and allows more flexibility for planners. A problem arises with MMP if a plan involves more than one county. Soil types may be missing from a plan in such an instance. 28 In the MSUnm program, crops to be grown must be selected. Unlike the MMP program, MSUnm has the ability to select field crops as well as fruit, vegetable and turf crops. This is an asset to fi'uit and vegetable farmers. The MSUnm has an area to input all fertilizer and liming materials used and the nutrient analysis of each. Included in the liming and fertilizer section is the ability to record nutrient costs. This allows a producer the ability to estimate fertilizer expense or to figure the cost- benefit analysis from efficient use of manure nutrients. MSUnm has also implemented the ability to record the soil-testing laboratory used and download the soil test levels directly from the web. This can be a tremendous time saver for farmers compared to manually inputting the data. Once a testing lab is selected, units are automatically given. The pesticide/herbicide section is another record keeping aspect of MSUnm, allowing producers to track where, when and what chemicals were applied and who applied them. This allows for accountability in the instance of a problem. Another beneficial aspect of MSUnm is the section for tillage information. This area allows for the input of different tillage practices used on different fields. However, when a type of tillage is specified, a message comes up saying that the acres are incorrect, acreage should be between zero (0) and zero (0), please enter correct acreage. This is likely a glitch in the program that has not been worked out at this time, although it is a concern for producers currently using this version. One feature that is found in both programs is the ability to make notes and comments. This allows some freedom for descriptions, special notes and explanations if needed. This feature is handy, especially on a large or widely variable farm system. 29 MSUnm requires a sub field ID, where MMP does not. While MSUnm will use the last available soil test level entered, MMP does not accept soil test levels older than start of the plan. This is an issue if a producer is just beginning the planning process and soil tests only a portion of his fields every year. GAAMPS allows for soil tests every three years as long as fields are not in excess of 300 lbs of P/acre. Not accepting a soil test older than the start of the plan can be discouraging when trying to plan for a field that does not have a new soil test. Another aspect of MMP that is worrisome is the lack of restriction on yield goals for crops. Yield goals can range from 0-500+ for any crop. Fertilizer recommendations will increase with the yield goal, except in the case of fallow ground where no fertilizer recommendations are given, no matter what the yield. This feature can allow a producer to overestimate yield goals and achieve apparent nutrient balance. MSUnm, on the other hand, is more realistic in their range of yield goals for different crops. The programs were designed to be used differently, however either of the programs has the potential to meet the needs of different producers for manure and nutrient management. Some other useful items in the MMP program are the automatic default nutrient recommendations for N, P and K, when crop information is input. This is beneficial if the farmer is strictly crop farming, and needs fertilizer projections, or when trying to match nutrient needs from livestock manure with crop needs. Also useful is the manure application section. This section can be confusing at first however it is a great planning tool, showing approximately when pits will become full. This allows for some pre- planning. For example, if the pits are predicted to be fill] at the current fill rate in 30 February and there is good weather in December, it is worth hauling some of the manure early to prevent overfill or having to haul manure in adverse weather. The color-coding of manure storage facilities allows for a quick and easy assessment of manure levels. Green means that the pit is low and has available capacity. The color Purple reveals a pit that had more manure removed from the pit than what should have been produced based on animal manure generation levels from animal numbers. The manure application section of MMP calculates the acres that should have been covered when manure load is applied. This allows the producer to see if a field was completely covered with each manure source, if applied correctly or if there are areas that did not receive some manure. MMP does not have enough space for all of the animals to be listed for MSU farms. However, most production facilities are not likely to have the variability in species that MSU farms maintain. It would be better if the set-up for animals present to be every two weeks instead of every month. Producers who buy or sell, or have newborns regularly would have animal numbers continuously changing. This could be a crucial issue for producers in close balance on manure. A desirable additional feature for MMP would be a record-keeping function for dates of manure applications. This would reduce confusion if the same manure and number of loads were applied to the same field, but on different dates. Otherwise there is the potential for a field to appear to have been completely covered on twice on the same day. It would be useful to print different sections of the plan for records or to take to the field as a reference. 31 CHAPTER 6: RESULTS AND DISCUSSION Michigan State University Farms is facing several challenges in the development and implementation of a CNMP. First, the removal of farmland from production is creating problems when attempting to balance nutrients for MSU farms. The decrease in spreadable acres over time is shown in figure 4A. In 1996, MSU farms utilized 1,455 acres for crop production and manure applications. Some fields have been developed and that acreage has been taken permanently out of University farm use. This includes the building of the Livestock Pavilion, the Spartan football field’s grass turf growing area, the Animal Health Diagnostic Laboratory, and the new or south swine farm. In 2001, the usable acres totaled 1,377. The reduction in land available has been further complicated with an increase of animals that are now housed in the new facilities. The new swine farm and the livestock pavilion increased the production of manure nutrients due to this addition. This complicates an already difficult situation by reducing the land base and increasing the generation of manure nutrients. An average crop removal rate of 51.1 lb/ac times 1,377 acres gives a total of 69,535 lbs P205 taken up on MSU farms cropland. This divided by the yearly production of P205 from one animal will total the number of head that can be sustained on MSU farms. Based on this information and the production values from MWPS-18, 2000 edition, 453.5 mature lactating dairy cattle, 907 Mature 1,100 lb beef cattle, 1,465 lactating sows weighing 375 lbs, 9,525 mature sheep at 100 lbs or 1,731 mature 1,000 lb horses can be sustained on MSU farms. Sustainable animal numbers are based on total available acres and do not take into account acres which should not receive manure application due to high soil test levels. 32 While the land base is decreasing, overall animal numbers are increasing, heightening the problem even more. Animal units (AU) have increased over the last five years as shown in Table 2. In 1996 MSU farms housed 1,480 animal units. The animal numbers vary due to research projects, newborns and production. In 1999 the number of animal units heightened to 1,796, then decreased in 2000 to 1,678 (Figure 8). Many of the livestock are kept for production and not always used for research purposes. As of 2001, animal units are at their peak of 1,798. The current equation of animal unit change over time is: y=77.486x+1336.5, indicating an increase of 77 animal units per year. The decrease in acreage without the subsequent reduction in livestock exacerbates the problems faced by the MSU farm system and a subsequent accumulation of P. For every piece of land lost from production, there should be an equivalent reduction in livestock to balance for the phosphorus that would typically have been recycled on the land area. For example, Powell et al., found that approximately 0.71 ha or 1.75 acres is required to properly recycle the phosphorus excreted by a lactating cow fed a P adequate diet. Adding supplemental P beyond the feed requirement increases the cropland area required to recycle the manure P. Thus, if the initial system is balanced, one lactating cow or an equivalent source of phosphorus, should be taken out of production for every 1.75 acres lost. Thus when the Animal Health Diagnostic Laboratory was built on field E38, a 9-acre field, just over 5 lactating cows should have been taken out of production. However, this has not been the trend seen on the MSU farms. While acreage has been decreasing, the overall trend of animal units is increasing without increasing nutrient exports. 33 The lack of compensation for reduction in land-base has led to the concentration of manure nutrients on less acreage and a subsequent build up of soil phosphorus levels. To adequately recycle nutrients, removal rates must be equivalent to production. The average rate of P205 removal based on the 2001 crop plan is 51.1 lbs/acre (Table 7). Production levels for the three different assessments of nutrient production, each resulted in a different P205 value. Mid West Plan Service-l8, 1985 edition predicted 142,577 lbs for 2001(Table 8). Based on a removal rate of P205, 2,790 acres are required to adequately recycle P. Mid West Plan Service —18, 2000 edition estimates a production of 127,961 lbs of P205 (Table 9), requiring 2,504 acres to properly recycle P. Manure analysis assessment revealed the highest estimate of P205 production at 153,721 (Table 13) and requiring 3,008 acres based on average crop removal data to adequately recycle the P nutrient. MSU farm’s currently maintains 1,37 7 acres for manure application and nutrient recycling, obviously resulting in the over application of nutrients. The application of more manure on less land has increased the nutrient application per acre. Because of the increased nutrient application, the soil test phosphorus levels of the MSU farm fields have increased. Soil test phosphorus levels over the last 10 years show a yearly increase of approximately 4.5 lbs of Bray P/acre/year (Table 17, Figure 9). Soil test phosphorus levels were taken from the last 10 years and weighted according to the number of acres that had been tested for each year. The weighted average was then utilized to look at the overall trend of soil phosphorus levels. At this rate, if the farms were to become compliant with GAAMPS and manure applications ceased to fields which tested 300 lbs of P or more, it would be a short time before all fields were beyond the P threshold level for manure application. 34 The soil test phosphorus results show there is reason for concern. However not all fields are tested every year, and some fields have not been tested at all in the last 10 years, thus more analysis needs to be done. Utilizing the Mid West Plan Service-18, and crop removal values, a balance was done to see if, according to book values, MSU farms are generating more phosphorus than can be utilized by the crops. The balance shown in Table 15, looks at the 1985 version, the 2000 updated edition of MWPS-1 8 and manure analysis levels. All three balances revealed nutrient P production in excess of what was utilized by the crop rotation for 2001. However, it has been noted that the book values of nutrient content can be different from true excretion levels due to different diets and management practices and thus manure analysis results were compared against the book values to account for potential feed management differences. The comparison of book values with manure analysis levels saw nutrient predictions of book values actually lower than the manure analysis results. In other words, P production is greater than originally predicted by book values. This also means P is likely being supplemented beyond livestock requirements, which will increase the amount of land required to adequately recycle manure P from each animal. A closer look shows that there is a significant difference in the manure analysis levels over the book values. The manure analysis shows P production is 62% higher than what was predicted by book values. This research project has shown that MSU farms produce between 127,000 and 154,000 pounds of P205 annually. In 2001 there were approximately 1798 animal units (see table 2) on the farms and there were about 1377 acres in crop production. Furthermore, soil test data over ten years shows that the weighted average soil test phosphorus is about 150 pounds of Bray P1 per acre and it is increasing by 4.5 pounds 35 per year. Average P205 removal by the crop produced is 51.1 pounds P205 per acre. In 2001, animal on MSU farms produced more than 58,000 pounds of P205 in excess of crop removal. MSU farms are an unbalanced system, and the problem is getting worse. MSU farms have a definite manure P excess issue. This has been seen with the increase in soil test levels over the last ten years, the balance of crop removal versus book values and manure analysis levels. The imbalance will continue unless some action is taken to reduce P production or some exportation of nutrients out of the system occurs. 36 CHAPTER 7: LIMITATIONS AND IMPLICATIONS OF A CNMP ON MSfiU FARMS Throughout the development of this plan, many communication barriers were encountered. Improvement in communicating plans of facility expansion, changes in livestock numbers or animal management, would greatly improve efficiency of planning. Leaking water for example, decreased available storage time in the structure and should be brought to the attention of the facility management. Significant changes in animal numbers should be made known to the land management as well, as changes affect the volume of manure produced. Livestock numbers will vary depending on research, reproduction rates, and farm management of each facility. Numbers in some facilities fluctuate significantly throughout the year, as in the case of BCRC. All of the livestock facilities undergo some fluxuations throughout the year; but the extent of the change is unknown. Typically, one person oversees a farm. MSU farms’ has 9 individual people making decisions about the goal of their livestock facility without conferring with the other farm managers as to their plans. Changes occurring at one facility are not likely known by the others, but Land Management must deal with whatever changes occur in manure production and crop management. Planning for manure application and crops to be grown is also difficult. Each facility requests a volume of feed that will be needed for the following crop year, but acreage is limited and yield goals are not always met. In a typical farm setting, if feed is limited, animals are sold to compensate. The problem arises as to which farm has to sell animals and how many must go. This can be challenging when each facility has already set goals and plans for the year. 37 Implementation of a CNMP can be challenging. The sources of manure on MSU farms are many and varied. Some facilities have long-term storage and some require daily haul. The labor form includes students and professionals, and the plan is not always well communicated. It has not been unusual for some land to be double applied and some to be skipped. Nonetheless, the key to implementation of the plan is good communication at all levels. Ultimately, decisions affecting the farms are made at levels much higher than farm management yet have significant impact on nutrient balance. There are more animals on the farms than the land can support. The managers have no control on the number of animals or the land on which to apply manure. In order to balance nutrients, the animal numbers need to be reduced or nutrients must be exported or a combination of the two must be implemented. 38 CHAPTER 8: CONCLUSIONS MSU farm system will benefit from the implementation of a CNMP. The plan shows that the problems are, primarily with the Dairy, Swine, and Poultry facilities. There are phosphorus issues on MSU farms. The rising STP levels over the last ten years are one indication that P is out of balance. The overall increasing STP trend is approximately 4.5 lbs PzOs/acre/year. The rising STP levels are due to the overproduction of manure P nutrients beyond crop P removal rates. Objective 1: An estimate of total P production and P removal for MSU farms has been presented. The estimate of P production was done using 3 different methods and they range from 128,000 lbs (MWPS-2000) to 154,000 (manure analysis). Removal for 2001 was estimated to be 69,535 lbs P205. This is an imbalance of 58,426 lbs (MWPS- 2000) to 84,186 lbs (manure analysis) P205. Objective 2: Soil Test Phosphorus levels were determined for MSU farms by analyzing existing data. The weighted average level is between 130 and 150 lbs/A and it is increasing 4.51b/A/year. Objective 3: A CNMP for MSU farms is presented in Appendix A. Oifiective 4: Two Software programs were compared. The intended purpose of the programs differs, and consequently there are advantages and disadvantages based upon the use to which they are put. All three P-balance methods reveal excess P production. MWPS-18, 1985 edition shows an excess of 73, 042 lbs P205; MWPS-18, 2000 production levels are in excess by 58,426 lbs PzOs/year and manure analysis results reveal P production in excess by 84,186 lbs P205, 39 The trend of increasing animal units and decreasing land area foretells an even greater future P imbalance for MSU farms. Limited crop varieties are grown on the MSU farms in an attempt to meet livestock nutritional needs, which firrther constrains the system. MSU farms are unable to produce all livestock feed required to meet livestock needs and thus there is a need to import feed. At this time MSU farms are an unbalanced system, and the problem continues to deteriorate as land is removed fiom production and livestock numbers continue to rise. This trend will only increase the phosphorus levels of the farm fields and the potential for non point source pollution. 40 CHAPTER 9. RECOMMENDATIONS FOR MSU FARMS There are several methods that MSU farms could utilize to reduce the imbalance. Most likely, a solution consists of a combination of several solutions. The first is to reduce the production of nutrients. This can be done by reducing the nrunber of livestock present on MSU farms, and reducing the nutrient content of the feed that is being fed. Reduction in animal numbers would reduce production of nutrients as a whole. The potential removal of livestock below sustainability numbers for a period of time would permit fields above the allowable manure application threshold an opportunity to recover and move to a lower threshold range. Once all fields have recovered and are within allowable manure application range, animal numbers could be brought up to sustainability levels, but not beyond, in order to maintain a balanced system. Livestock diets should be made to meet the NRC (National Research Council) basic dietary requirements for grth and production. Reduction in feed nutrient content will also reduce the nutrient excretion content of the manure. Application of manure over a larger area will reduce the nutrient concentration level being applied in any one area. Acquisition of land may not be feasible, but another possibility is to haul manure to other MSU farms land, off campus. This raises the cost of manure handling, and would have to be assessed. There is the potential of applying nutrients to other farmer’s land nearby, but there are few farms within a close proximity of MSU campus. Also this option would require the adherence of that farm’s schedule and guidelines. A more sustainable solution is to compost some of the manure, especially that which is hauled daily, and sell or give the compost away. Exporting the nutrients through 41 a value added product is a potential long-term assistance to the P balance issue. However it is not likely solve the entire P problem. The potential market for compost could be huge, if connections can be made and kept. Exporting of nutrients in the form of compost could result in increased public relations with individuals and businesses, while reducing the nutrient problem on MSU farms. An additional way to balance the P-budget is by maximizing P removal from crop uptake through the intensive management of cr0p type and rotations. Although this method is also not likely to solve the P issue, it can help to increase removal of soil P. 42 APPENDIX: CNMP Farm Details Michigan State University is a major agricultural research institution with various types and numbers of animals on its farms. Much of the land and many of the animals are located at the MSU campus in East Lansing, MI. It has experienced a substantial grth of non-agricultural population adjacent to its agricultural land. Okemos High School, a $35 million structure completed in 1995, is just 0.5 miles from MSU farms. A proposed $200 million golf course and up-scale housing development is proposed directly across Hagadom Street from the farms and about 0.25 miles from the beef cattle research center. The encroachment of non-agricultural population in close proximity with University farms has a high potential of increasing scrutiny and conflicts. MSU farms are located south of the MSU campus, in East Lansing, Michigan. MSU Farms are bounded by Collins road to the West, Hagadom road to the East, Mount Hope road to the North and Sandhill road to the South. (Figure 4 map of farm, Figure 5 aerial photograph of farms, and Figure 6 topography map of farms). MSU land base is utilized for the application of manures, crop production for the purpose of livestock feed, and some grain for export. Crops grown on MSU farm fields are primarily dictated by the amount of feed needed by each of the livestock facilities. However, some feed is also brought in from off-campus to meet the nutritional requirements of all the livestock facilities. University farm contains eight different research, teaching and production livestock facilities. These facilities include, poultry/mink, sheep, swine, dairy, beef cattle, cow/calf, equine and veterinary farm. Animals included within these facilities are: 43 r (at... ' mink, ferrets, turkeys, chickens, quail, pheasants, sheep, donkeys, swine, dairy cattle, beef cattle, and horses. The MSU livestock pavilion, located on the comer of Forest road and Farm Lane, must also be included in this plan. The pavilion, typically rented out for weekend livestock shows, is a large contributor of nutrients in the form of manure, feed, and bedding materials. These nutrients are applied to University farmland and thus contribute nutrients to the system. Animal numbers vary throughout the year at each of the facilities depending on birthing times, buying and selling of animals, or as in the case of the pavilion, date of shows and number of participants. These factors contribute to fluxuations of manure production volumes. Each year animal inventories are taken from the farm facilities around June 30m; these numbers will be utilized for manure generation purposes throughout the year, except for the Beef Cattle Research Center (BCRC) and the pavilion. The BCRC tends to be at a low point for the year at the time inventory is taken, so an average number of animals for the year will be used. This will give a more accurate head count to determine yearly manure production for the BCRC. The pavilion manure generation will be calculated using the number of days animals are present and the average number of animals present at the shows. Based on animal inventory data (Table 1), MSU farms consisted of just over 2100 total animal units (Table 2), in 2001. Pavilion numbers were calculated using the number of show days with an average count of animals at each show. There were 54 days when shows were occurring, and an average of 250 head at each show, which averages out to approximately 37 head per day 44 for one year. This accounts for the animals present, however the majority of material being hauled out of the pavilion is bedding material. Nutrients contributed fi'om bedding were not accounted for in this table. Overview MSU farms are primarily used for the purpose of teaching and research, but 'operate similar to a production facility. The seven different livestock facilities operate as separate units, but are all connected by the University farmland base. While each farm operates as a single unit, the University land managers connect with them for the purpose of hauling manure and crop production for livestock feed purposes. The University land manager utilizes projected feed requirements from each of the farms, to produce the collective feed needed for the livestock facilities. The goal of university farms is the development and maintenance of a balanced livestock/crop system; attempting to maximize livestock feed production, with manure generated nutrients while minimizing potential environmental and human health problems. Farm Headquarters Map Attached is a map showing the individual livestock farms and fields as labeled by MSU farm’s Land management (Figure 4). As well as an aerial photograph of the University farm fields and facilities (Figure 5). Animal Outputs An animal inventory list is attached showing species, weight, production level and number of livestock (Table 1). Amount of manure generated was calculated using the animal inventory and Mid West Plan Service 2000 for Manure Characteristics for total manure production per day and per year. Also included is the total amount of manure 45 hauled from each facility, as calculated by University farms land management (Table 11). The loads of manure taken from each facility were counted and periodically weighed to verify the approximated mass value. Total gallons hauled were based on capacity of the spreader and liquid level. Water control measures The new swine and horse facilities both have rain gutters to direct rain to each ., 1,1 side of the barn. The dairy farm has a sewer drain at the low spot in the fi'ont of the facility, this water is sent to the East Lansing Sewage Treatment Plant, but may contain manure nutrients from the barns. All liquid pits are covered or enclosed, to prevent excess precipitation from filling the pits early and diluting the nutrient content of the 1m manure. Animal Mortalities Swine farm composts animals that die. The Dairy, Horse and Sheep farm each render dead animals. Veterinary Wastes Veterinary wastes are disposed of in sharpies containers or trash depending on contents. However, some veterinary wastes have been found in pits at the dairy farm. Collection Method of collection varies between facilities. There are several liquid storage pits; most of the facilities have some manure pack or solid manure with bedding and some manure directly deposited on pastures by grazing livestock. 46 Daig Barn The dairy barn has several different ways of handling manures. Tie stalls have a gutter system that is cleaned three times per day on a regular basis, except for three months when some of the animals are out on pasture. When animals are on pasture the gutter system is cleaned twice daily. The Dairy North, Dairy South and Dairy Heifer pens are grated floors with pits underneath, bags with sand are available in stanchions for the cattle to lie on, and no other bedding material is used. The parlor is sprayed down with water and flushed into a pit. The maternity pens, where calves are born are bedded with straw. The manure pack from the maternity pens is added to the daily haul material as the barn is cleaned. The calf pens are also bedded with straw and handled the same as the matenrity pen material. Egg The BCRC has two manure handling systems. The majority of the cattle are kept on grated floors with a large manure storage pit below. The other cattle are kept in the wings or pens bedded with shavings. COW/calf The cow/calf facility rotates animals on pastures for most of the year. Cows are brought inside around December for calving. Animals calve in pens bedded with shavings, and are put out to pasture. Most of the cattle are back out to pasture by the end of April. Manure is handled as a manure pack at this facility. SE2 The sheep facility is very similar to the Cow/calf facility. Manure is handled as a manure pack, with straw bedding. Animals are kept on pasture for most of the year, and 47 brought in for lambing in early spring. More straw is added to the pens as needed and cleaned when lambing is finished. flog; The horse farm only collects manure as a manure pack with bedding. Most of the manure is not collected, but spread by the grazing animals. Horses are rotated through pastures throughout the year. Horses foaling and some horses used for show or .— equitation classes are kept in stalls. Stalls are cleaned daily and manure is hauled to a V pile in the woods where it will undergo some composting and volume reduction. ' Occasionally dairy parlor water is added to the horse pile to increase composting rate. g The pile is hauled 1-2 times per year. E‘— Poulty The poultry unit has two different manure handling methods. Most poultry are housed in cages and litter falls through to the floor. Some animals are in open floor bedded pens and manure is scraped when the animals leave. There is one liquid pit where turkeys are typically housed; this is pumped one time per year. One other manure handling system is used with mink. Pens are stacked under a covered structure, and pans are kept under each pen to collect the mink and ferret manure. These are cleaned as needed. m The old or north swine farm has six different pits under different production areas. The pigs are on slotted floors and the manure is collected in the pits below. The new or south swine farm has a liquid-solid isolation system. Liquids are drained with the use of gravity and pumps into the slurry storage tank. The nursery is a pull plug 48 system and the total slurry is sent to the slurry storage tank. Solid manure is scraped to one of two covered buildings, from where it is transported to a covered cement slab, mixed with pavilion bedding material, and composted. Some compost materials are utilized to assist in the composting of dead animals. P_avi_li2n Most of the pavilion manure is bedding material and is collected as solid manure. The soiled bedding and manure are taken to an allotted field and spread. Bedding material with little or no soiling is transported to the BCRC where it will be reused as bedding for the cattle. Storage Daig farm Dairy North pit, located on the north side of the main barn is an anaerobic pit with outside fans with dimensions: 136’ X 27’ X 10’, total volume: 36,720 cu ft. The total manure volume this pit can hold is 274,000 gallonswith 4-5 months storage capacity. Dairy South Pit, located on the south side of the main barn is an anaerobic pit with outside fans with dimensions: 136’ X 27’ X 10’, total volume of 36,720 cu ft. (Figure 11) The total volume this pit can hold is 274,000 gallons with 4-5 months storage capacity. Dairy Heifer pit, located under the dairy heifer barn to the south of the main barn is an anaerobic pit with fans with dimensions: 112’ X 30’ X 10’, total volume of 33,600 cu ft. The total capacity of the dairy heifer pit is 250,000 gallons and is hauled approximately every 6 months. (Figure 12) 49 Dairy Parlor pit, located under the dairy parlor has dimensions: 40’ X 18’ X 8’, and total volume of 5,760 cu ft. Capacity of the parlor pit is 43,000 gallons and must be hauled about every 2 weeks (Figure 13). The Dairy Milk house is adjacent to the parlor pit but is not connected. It has dimensions: 20’ X 18’ X 8’and total volume of 2,880 cu ft. Total volume of the milk house pit is 21,000 gallons; the milk house is only occasionally flushed, and thus only has to be hauled about once a year (Figure 13). The maternity pens and calf pens are cleaned "‘1‘: as needed; this manure is added to the daily hauled manure from the tie stall area. The tie stall area has a gutter system that is cleaned 2-3 times per day, depending whether animals are on pasture or not. This area has no storage time. Some of the manure item the tie stall area has been composted in the past, however the composting area is not covered and the manure is exposed to the elements. The size of the storage pits seems to be adequate for the number of animals present at this time with 4-6 month storage time. Some manure could be applied late in the summer or early fall if needed to give ample storage capacity if necessary. The parlor pit does not contain adequate storage capacity for winter. Spreading liquid on frozen ground during winters is not recommended and an alternative method or increased pit size is advised. There is no storage f or the tie stall manure necessitating hauling 2-3 times per day. This is risky and definitely not recommended. The idea to compost this manure is ideal, however the compost area should be covered, and have some sort of solid footing or structure underneath to deter leaching and minimize rutting when ground is soft. The amount of manure being hauled on a daily basis may still be a problem because of the time it takes to compost, and the structure will need to be large enough to 50 handle the volume of manure being generated on a daily basis. Composting will reduce the volume being hauled on a daily basis. B_CB_C_ The BCRC pit is an anaerobic pit located beneath the BCRC barn. The pit dimensions are 200’ X 40’ X 10’, totaling 80,000 cu ft (598,400 gallons). The BCRC pit is hauled about every 6 months, which gives ample planning time for spreading, and enough storage for the winter. (Figure 14) The BCRC wings are cleaned about every six weeks. This gives some time to work around the weather, but not enough to make it through the whole winter. Another strategy or plan should be set up to better manage the solid manure at the BCRC. One possibility may be to add it to the dairy compost pile, or start a composting area at the BCRC. m The horse barn stalls are cleaned once a day and the manure is hauled to a manure pile hidden from site by surrounding trees. The manure will self-compost, reducing the total volume of the pile. The pile is hauled as needed. However, there is no barrier beneath the pile to prevent movement of nutrients downward, and there is no cover directly above the pile thus exposing it to the elements and allowing for potential runoff. Manure has been piled in this same location for many years, so the potential of downward movement is high. The plan of action is a good one, except a structure or barrier of some kind should be kept beneath the manure to prevent or reduce the potential of leaching. All horse manure is handled as a solid (Figure 20). 51 Sheep The sheep barn is cleaned after lambing and all of the animals are put out to pasture, usually in May. This is a good time to apply the manure where needed at planting time. All manure is handled as a solid for the sheep farm (Figure 23). 292m The poultry unit hauls about half a load per month. There is no storage area during the winter months, and thus manure is applied year round or stockpiled when fields are wet or in production. The poultry unit also maintains a turkey liquid tank, which holds 3,000 gallons and is typically hauled 1-2 times per year (Figure 22). The turkey tank seems to be adequate for the number of turkeys present. Although a very small amount of volume produced each month, some method of storage should be developed to maximize use of the nutrients. Cow-Calf The cow-calf facility maintains animals on pasture for the majority of the year. Animals are brought inside in December, where they are kept until calving and then returned back to pasture after calves are born, typically in April. Pens are cleaned after the animals are put back out to pasture. All manure is handled as a solid or manure pack. m The old swine farm still houses some pigs, but all are on pits. There are six pits at the old swine farm. Pit 1- F arrowing barn small pit, capacity 2,000 gallons Pit 2- Farrowing barn large pit, capacity 10,000 gallons, and dimensions: 12’ X 12’ X 12’ Pit 3- New F arrowing, has two 1,000-gallon pits. 52 Pit 4- New Finishing, capacity of 30,000 gallons, dimensions: 10’ X 8’ X 54’. Pit 5- Lane Septic, capacity 13,000 gallons, and dimensions: 12’ X 12’ X 12’. Pit 6- Breeding Septic, capacity 8,000 gallons. Each of these pits is hauled about every 6 months. (Figure 15) (Dimensions of Slurry Storage Tank or capacity)(Figure 16) The new swine farm has a large slurry storage tank that must be hauled about every 5 months, and a separate solid covered area where solids which are composted on a concrete covered structure, or taken straight to the field depending on time and space availability. There are some problems. The compost tends to take longer than planned, causing excess solid manure to be stockpiled outside the covered area or ‘hot’ compost to be applied to fields. mg The pavilion is rented out for weekend shows; amount of manure generated varies depending on the number of shows and animals present at each show for the year. The pavilion has small concrete bunkers where manure is dumped when the pavilion is cleaned. This allows for some storage of manures, but it is open to the elements. Leaching is prevented by the impermeable concrete surface. However the potential for nutrient rich runoff fi'om draining gutters and the concrete surface risk penetrating the nearby drainage ditch (Figure 21). Manure generation from this facility varies significantly over the year and from year to year. One management strategy that has been implemented is the recycling of some of the pavilion bedding. This greatly reduces the volume of material that has to be hauled 53 onto the field at any particular time. The bedding material that is not soiled or only slightly soiled is being reused by the BCRC. Treatment Generally, treatment to the manure prior to application is minimal. The primary form of treatment is physical agitation to all of the liquid storage pits prior to pumping. The other treatment done to some of the solid manures or manure packs is composting. Although some ozonation has been done on a small amount of swine manure. The majority of the solid fraction of the swine manure at the new facility is composted. Minimal composting is being done at the dairy farm, however lack of overhead cover from the weather is a detriment to the speed and consistency of the material. There is also concern of runoff from the composting area. Transport Equipment used for manure transport (Table 10). Method of application Both solid and liquid manure are typically surface applied or broadcast. Generally this is followed by incorporation within 3 days for liquid manures and within 7 days for solid manure. Injection of dairy manure has been attempted and was somewhat successful, there were some problems with plugging hoses, additional agitation was being utilized to help reduce particle size. Frequency of Hauling The University land management workers apply most of the manure hauled onto the University farm fields. However, facilities that require frequent hauling will haul the manure themselves. Land management allocates fields for the individual farm workers to 54 apply. frequently hauled manure in order to prevent the overapplicaton of manure to the same fields. Dairy Regular: gutter manure fiom the dairy tie stalls is hauled 2-3 times per day. Workers fiom the MSU dairy farm haul this manure regularly. The Dairy North, and Dairy South: pits are hauled out every 4-5 months. The Dairy Heifer: pit is hauled about every 6 months. Dairy Parlor: is hauled about every 2 weeks. The Milk house: is only hauled about 1 time per year. Beef Cattle Research Center: pit is hauled every 6 months, while the bedded wings are cleaned out about every 6 weeks. Horse stalls: are cleaned on a daily basis and a horse farm worker takes it to the pile and dumps the load. The pile is hauled as needed, and at least once a year is completely cleaned by the land management workers. Sheep pens: are cleaned once a year. Half a load of Poultry manure is applied once a month by the poultry farm manager. The turkey tank is pumped and applied by the land management workers 1-2 times a year. Conservation Practices on Fields used for Manure Application MSU farms use several methods of conservation to conserve soil and minimize any nutrient movement. Buffer and or filter strips near and around areas of standing or moving water and along ditch banks. No-till is used in several fields to minimize soil loss and maintain soil structure and moisture. Incorporation of manure within 1-3 days also reduces potential for nutrient movement. 55 Table 4 shows soil types, slopes, and soil test phosphorus value. Most of the soils present on MSU farms are medium textured with a range of 0-6% slopes. Soil test values vary around the farm with the highest fields (300+) all located on the east side of College Road. There are a few water bodies present on the MSU farmland area, and dispersed areas of wet ground. Water Qualig Topography (Figure 6) University Farm fields have dispersed areas of wet spots where water may stand after a rainstorm for short periods of time. Areas of concern when trying to minimize potential of nutrient runoff and erosion include the Banta Drained area and areas that appear to drain toward the Herron Creek which eventually drains to the Red Cedar River. These are the primary areas where nutrients have the potential to be moved off-site. The Banta Drain drains the section of fields on the comer of Jolly and Collins Rd. This area includes fields W70-W80 and fields W56-W58. The area is drained toward the comer of Jolly and Collins Rd where a large grated area flows into a drainage ditch. There is a 10’ area around the drain where grass is kept in place to reduce nutrient loss into the drainage ditch. However the rest of the drained area is farmed. In average or dry growing seasons this practice may be acceptable, but in the case of a wet and rainy season, it is likely that some nutrients are lost to the drainage ditch. The area south of the Sheep farm, encompassing fields E62, E82-l and E82-2 drains toward the Herron Creek area. Herron Creek empties into the Red Cedar River. 56 The area south of the sheep farm that drains toward the Herron Creek is in pasture, and it is always covered by vegetation, minimizing nutrient losses. Another area of concern is south of Jolly Rd, fields E124, and E126, where a drain runs along the west side of these two fields. A buffer area should be implemented to minimize any potential loss of nutrients from these fields. There are several water bodies present on University farmland area. The main water areas are south of Jolly Rd, on the East and West Side of College Road. These areas are not farmed, but are most often used for research purposes. These areas are shown as W98, E90-1 and E90—2 in Figure 4. Another small water body present is located behind the BCRC between fields E27-1 and E27-2. Both of the fields are extremely high in phosphorus and pose a large threat to the quality of this water body. Surface Cover A large portion of the University farm fields are planted into pastures utilized by the beef cattle, sheep, horses and dairy cattle. These pastures are seldom tilled for the purpose of row crops. It is also the practice of the farm managers to leave crop residues or stubble in the field as long as manure is not applied; when manure is applied, the schedule is to till the manure into the soil within 3-7 days to prevent nutrient loss. This leaves several fields tilled and susceptible to winter erosion because of the manure that is applied after harvest but prior to frozen ground and snow. Winter spreading is occurring on University farms. There are several fields that should not be utilized for winter spreading due to potential water issues or already high soil test phosphorus levels (Figure 10). Fields E90-1 and E90-2 do not receive manure applications at any time. E27-1 and E27-2 already have high phosphorus levels and a 57 water body is present, so the potential of runoff and erosion of phosphorus exists. The Banta Drain area includes fields W70-W80, as well as fields W56-W58. The area south of the sheep farm drains toward Herron Creek, fields E62, E82-l and E82-2. Fields E124 and E126, should also be exempt fi'om winter spreading due to the drainage system to the west of these fields. Fields that are fairly level and do not contain drainage or wet areas and are not already high in phosphorus are better suited for potential winter spreading events. (Table 5) These fields suit the specifications of fields utilized for winter spreading, however they may not suit the needs of the farm to spread manure on. Many of these fields are allocated for pastures, and some are planted to alfalfa that restricts these fields from the list of possible fields to spread manure on. Manure P application Phosphorus generation levels for 2001 were assessed with three different tools, MWPS-18, 1985 book values, MWPS-18, 2000 book values and manure analysis test values. Total manure P205 generation as calculated with MWPS-l 8, 1985 is approximately 142,500 lbs of P205. Total manure P205 generation as calculated with MWPS-l8, 2000 approximately 128,000 lbs of P205. Manure P205 generation as calculated with manure analysis results total approximately 153,700 lbs of P205 As shown by the different analysis assessment for phosphorus production, MWPS-18, 1985 is very close to the manure analysis results generated at MSU farms. 58 Manure N application Utilizing the same methods as were used for calculating phosphorus levels, manure N levels can also be assessed. MWPS-l 8, 1985 calculated an estimated Nitrogen production of 225,000 pounds. MWPS-18, 2000 resulted in approximately 273,000 pounds of Nitrogen being produced. Manure Application Methods Manure application methods consist of broadcasting the solid or liquid manure, followed by incorporation within 1-3 days. Injection of some liquid dairy manure has been partially successful. Land Application Management Nutrient Budget: a nutrient budget is a method of predicting the amount of nutrients that will be required for a crop plan. For 2001 crop plan, 274,587 lbs of Nitrogen, and 70,585.4 lbs of P205 were required by the crops. Calibration of equipment In most cases no calibration is done. The rate of manure application is set by the Power Take Off (PTO) speed and tractor speed. Personnel need to be mindful of both parameters. The end of each load should be marked so spreading the next load begins in the right place. One method uses an orange cone. Every time the employee hauling the manure finishes spreading a load they are supposed to move the cone so the next employee knows where to begin spreading their load so as not to overlap or miss areas. Application schedule There is not an actual application schedule. Manure sources are hauled as they become filled or just before planting or shortly after harvest. Most pits have an 59 approximate time frame but there is not an exact date. Schedule varies depending on animal numbers, health, feed wastage, bedding materials, and technical problems, such as water faucets leaking. Application rates by field: Application rate is variable depending tractor speed and the Revolutions per Minute (RPMs) of the tractor. Unfortunately, this can cause the nutrient concentration level to vary between fields and even within a field if the operator chooses to change speeds or RPM levels. Not knowing the application rate is probably the greatest shortcoming in accomplishing effective management of manure nutrients. (Jacobs, 1995) Driving at a higher gear is likely to reduce application rate unless RPMs are high. Traveling at a lower gear with higher RPMs will increase the application rate per acre and thus the concentration of nutrients that are being applied. Emergency Action Plan MSU farms’ does not have a written Emergency Action plan in place. What is presented here is a rudimentary plan. The first step is an assessment of a situation. Determine the severity of the situation. How much manure has been lost? Holding tank capacities range from 3,000 gallons at the poultry unit (Figure 22) to 587,000 gallons at the BCRC (Figure 14). Secondly, control the situation. Stop manure pumps. Close any valves that remain open. Transfer manure liquid to another tank, storage facility. Plug any holes or shut off the water in case of a waterline break. On most of MSU farm pits the pump is not on site, thus, these facilities need to be in contact with MSU land management to get the proper equipment to manage the spill or leak. They have access to pumps and 60 transport vehicles to remove overflowing materials as well as large dirt moving equipment if necessary. Next, contain the spill. Build a containment dam, ditch or stream to stop or minimize any further movement of the contaminant, especially in sensitive areas. Tile drainage areas should be sought out and preventive measures taken to minimize flow into tile drains. The containment basin should be down slope from the affected area. Limit the area impacted. The use of absorbent materials, such as sawdust and old feed, will also help to reduce impact and flow of spillage. The availability and use of a dirt pile to barricade ditches or sensitive draining areas will improve reaction time and greatly reduce the size of the affected area. MSU farmland management has taken into account sensitive sites as well as potential for damage from large storage facilities. Due to the large volume of the new or south swine farm and the potential flow site into a sensitive wetland area, a dirt mound has been put into place in the case of an emergency situation. In the case of a spill, the flow would be directed into the ditch, from which it can enter directly into tile lines that flow into the Okemos wetland area. Also, the south swine facility is an above ground storage, so it has the capacity to unload a large volume of manure in a very short period of time. The old or north swine facility has two small lagoons at the test station area. These primarily contain water but can receive runoff from the upland facilities. The lagoons are presently left and allowed to overflow onto the surface. Any breaches that occur at the north swine facility would flow in an easterly direction from site of breech and into the nearby ditch. 61 The Dairy bam pits would tend to flow to the east if any breach or spill were to occur. The primary concern is the manhole, which dumps directly into the East Lansing Waste water treatment facility. The occurrence of spill would cause an influx of flow to the treatment facility and potential overflow at that site. To the west of the barns are two other manholes, which also flow to the north. In the instance of a spill or silage leachate that entered either of these areas, a shut off valve is available just south of the dairy pasture area and can be shut off. The flow from the north manholes does come above ground for a short distance in the pastures to the north. This is another potential point of interception before the material goes off site. BCRC has a very large underground storage pit. If the pit were to breech the waste would travel to the south and into a drainage ditch. The scale house pit would have the same flow route, but the volume is much smaller. There is not a nearby sensitive area, which is a direct route of concern, however tile drains run nearby and infiltration into tile drains is always an issue. Because the pit is below ground level, a catastrophic failure is unlikely. The poultry unit contains one small 3,000-gallon tank. In an event it was to leak it would flow to the south under the expressway. This pit is small, however the nutrient concentration is high and thus precautions need to be taken. After assessment, controlling, and containing the spill has occurred, the spill or leak should be properly reported to the necessary agencies. If the release reached any surface waters, streams, well casings or other sensitive areas it needs to be reported immediately to the state environmental management agencies. Any manure spills on public roads should be reported immediately to the local authorities, such as the county 62 sheriff. Other spills, which did not affect sensitive or water reservoirs, should have a summary report prepared and filed for future reference and to document the actions taken. In the case of MSU farms, the order of contact in the case of a spill would be: 1. 6. Individual Farm Manager of the facility Swine: 355-7485; Sheep: 355-7477; Dairy: 355-7473; BCRC: 353-2245; Poultry: 355-0360; Horse: 355-7484; Pavilion: 432-5566; Purebred: 355- 7452. Land Management Manager: 719-2153 Department of Police and Public Safety: 911 ORCBS: 355-6651 Michigan Department of Agriculture’s Agriculture Pollution Emergency Hotline: 1-800-405-0101 Michigan Department of Natural Resources: 1-800-292-4706 See Figure 17 for an Emergency Contact form. Finally, Clean up can begin. Assess the full impact and restore the affected area or areas. Collect spilled manure and apply it or return it to storage. Restore damaged areas. Prepare a summary report. Summary MSU farms have some problem areas. First are the high soil test phosphorus levels of several fields. The higher P level fields are closest to the farms, which contribute the greatest concentration of nutrients. The three prime areas are the swine farm, the Dairy farm and the poultry farm. This is risky when water sources are nearby or the potential of runoff to tile drain exits. An even larger issue is the continued 63 application of manure to fields already in the high phosphorus level category of GAAMPS. The University farm system is not in phosphorus balance. The number of livestock present is greater than sustainable levels on the farmland base. This imbalance contributes to rising STP levels in the fields. Daily haul at the dairy barn is a potential problem. The lack of storage for this facility is critical in Michigan due to the varying weather conditions. Applying manure to frozen or snow-covered is not an acceptable continued practice. A storage faCility needs to be put into place in order to give a greater window for application. 64 BIBLIOGRAPHY l. 10. ll. 12. Bates, Tom. Prediction of Phosphorus Availability fi'om 88 Ontario Soils Using Five Phosphorus Tests. Communications in Soil Science and Plant Analysis, 21 (13-16), pp1009-1023. April 1997. Bomestein, Seth. Feedlot Perils Outspace Regulaticm Sierra Club SgLs. August 13, 2002. http://www.ranchwest.com/bec$gzhtml Bundy, Larry G, Department of Soil Science, University of Wisconsin. A Phosphorus Budget for Wisconsin Cropm. A report submitted to Wisconsin Department of Natural Resources and the Wisconsin Department of Agriculture, Trade and Consumer Protection, 1998. http://ipcm.wisc.edu/pubs/pdf/pbudgetpdf Busman, Iowell; Lamb, John; Randall, Gyles; Rehm, George; Schrrritt, Michael. The Nature of Phosphorus in Soils. Phosphorus in the Agricultural Environment, 2001. University of Minnesota Extension Services. http://www.extension.umn.edu/distribution/cropsvstems/DC6795.htrnl Comis, Don. Protecting the Chesapeake Bay, Agricultural Research; Washington. January 1999. Volume 47: Issue 1. Pgs 4-8. Copeland, John D. Senator Harkins Animal Ag Reform Act. Dec 1997. Department of Environmental Quality. National Pollution Discharge Eliminations System. http://wwwmichigapgov/deq/O,l607,7-135- 3313 3682 37l3---.00.html EPA841-F-96-004A. Nonpoint Source Pollution: The Nation’s Largest Water Quality Problem. May 12, 2000. http://www.epa.gov/OWOW/NPS/facts/point1 .htrn Garcia, Rudy. Phosphorus. http://taipan.nmsu.edu/mvpfpp/phosphor.htm. Regional Precision Farming Pilot Project, 1999. Grigar, Jerry and Jay Blair, Soil and Water Conservation Society. Nutrient Management in Michigan. USDA-NRCS. 2001. http://www.swcs.orth publicaffairsgrtmgmt michig_an.htrn Jacobs, Lee. Manure Management, Michigan State University Extension. Bulletin MM-2, April 1995. Utilization of Animal Manure for Crop Production Part II. Manure Application to Croplan_d. Janzen, R.A., McGill, W.B., Leonard, J.J., Jeffrey, S.R. Manure as a Resource- Ecological and Economic Considerations in Balance, 1999. 65 13. 14. 15. l6. l7. l8. 19. 20. 21. 22. 23. 24. Kerr, John, Da Ouyang, and Jon Bartholic. Targeting Watershed Interventions for Reduction of Nonpoint Source Pollution, 2001. http://www.iwr.msu.edu/rusle/doc/stonyhtm Koelsch, R, Lesoing, G. Nutrient Balance on Nebraska Livestock Confinement Systems. J -animal science. Savoy, IL: American Society of Animal Science. 1999. V.77 (suppl. 2) p. 63-71. Lorimar, Jeff, assistant professor and extension agricultural engineer, Iowa State University; Wendy Powers, assistant professor, Department of Animal Science, Iowa State University; and Al Sutton, professor, Department of Animal Science, Purdue University. Manure Chagacteristics, MWPS-18, SI, 2000. Mallarino, Antonio P; Stewart, Barbara M; Baker, James L; Downing, John A; Sawyer, John. Background and Basic Concepts of the Iowa Phosphorg m. A support Document to the NRCS Field Office Technical Note 25. October 2000. Manure Management: How MSU is addressing the Michigan Challenge. v. 2, No. 2, Summer 2001. MAEAP Homepage: http://www.maeap.org Michigan Department of Agriculture. Michigan Agriculture Commission, Adopted by. Generally Accepted Agricultural and Management Practices for Manure Management and Utilization. Lansing Michigan. February 2002. http://www.michig_an.gov/mda/0.1607.7-125-1567_1599_1605---,00.htm1 Midwest Plan Service-18, Livestock Waste Facilities Handbook, 1985. Mullinax, Denise D.; Meyer, Deanne; Gamett, Ian. The Economic Merit of Animal Manures as a source of Plant Nutrients or Energy Generation, 1998. Nebraska Cooperative Extension G98-1369. http://www.ianr.un1.edu/pubs/water/g1369.htm#prev. Drinking Water: Nitrate and Methemoglobinemia ("Blue Baby ” Syndrome) Sharon Skipton, Extension Educator; DeLynn Hay, Extension Water Resources Specialist Piggott, Scott. Michigan Farm Bureau, 2000. http://www.michigapfarmbureau.com/press/2000/20001005.php#l Powell, J.M., Wu, Z., Satter, L.D. Dairy Diet Effects on Phosphorus Cycles of Cropland. Journal of Soil and Water Conservation, v. 56: no 1. 2001. 66 25. 26. 27. 28. 29. 30. 31. 32. 33. 34 35. 36. Reid, Keith. Conversation via e-mail on 12-21-00. @th.reid@omafra.gov.on.ca Thru the Sera-17 list serve. Salazar, Roger, EPA- Stephanie Cutter. 1998. Release No. 0372.98. USDA. USDA, EPA Announce Joint Strategy for Animal Feeding Operations. http://www.usda.gov/news/releases/l 998/09/03 72 Sawyer, J.P., A. P. Mallarino and R. Killom, Department of Agronomy, USDA, Cooperative States Research, Education and Extension Service Iowa State University Extension and The Department of Agriculture, Iowa State University. Interpretation of Soil Test Results. March 2003. http://www.exten_s_ion.ias_tate.edu/Publiczflor§/PMl310.pdf SERA-l7, Minimizing Phosphorus Losses fiom Agriculture, http://www.soil.ncsu.edu/sera17/issues.htm Threshold Soil Phosphorus Levels, 2000. Sierra Club. Breaking News and Views for Progressive-Thinking Americans. News Center. http://www.commondreams.org/pressreleases/march99/030899m.htm March 8, 1999. Sierra Club. Wisconsin Clean Water News. Citizen_s Act to Stop Manure Spill into Bigfiru Pleine River. http://www.wsn.org/factoryfann/MapleRidgespill.pdf April 12, 2002. 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F_:0< 3. .oz 3. .oz 3. .oz 3 .oz 3. .oz 3. 62 2925 .52 Raw 03 mwfim mmn nmdu 0mm «.9. van mmdw nun mvdw hvm .20.... mod m0 omF mfio mNF an mFF FNF Nvm mwo an fin mFF om 2E3 _m_0LoEEoo mod N 0v F.m No mod FF. mnF mm mvd a .F mm cm 8&3 e.sm. F.o No mm FN Fm F..m vm QmF mmF 0F. 9. :vb vo Q. 83m. 95.00} F.o m.NF mNF N.mF NmF F..NF va m. FF mFF NF NF. WA: SF 09 83m. m0.5.0.). mod mod «F o o No 3 9.0 m NM .3 Nd m on mnEmn .0502, mod moF Fm No .F.F fie 9 No FNF mmd m m0 w on BEE. Emm F.o No N F.o F v.0 F. No N od o v.0 F. 3 mEmm m:_:mm> F.o No R md m No N No N md m No N 00F 9:01 558 .2 .oz 3 .oz :< .02 :4. .oz :< .02 2 .oz 29.. moose 2F 88 88 82 ”8F 32 82 22:8. N 223 TABLE 3. ANIMAL UNIT FACTORS Livestock Type AU Equivalency Factor Slaughter and Feed Cattle 1 Horses 2 'Mature Dairy Cow 1.4 Swine (>551b) 0.4 Sheep 0.1 Turkeys 0.02 Chickens (broiler or layer) 0.01 TABLE 3. The animal unit factors used to calculate the number of animal units in Table 2. Factors were calculated using the Unified National Strategy for Animal Feeding Operations 1000 animal unit equivalent factor. The number of animals equal to 1,000 animal units was divided by 1000 to get the factor for 1 individual animal unit. 74 TABLE 4. PHYSICAL AND QUANTITATIVE FEATURES OF FARM FIELDS Field SubfieldTAcres Soil Type % Slope Soil Test P STP year E14 6 4 Capac 0-3 181 2001 E27-1 7 5 Riddles 2-6 61 8 2002 E27-2 8 5 Riddles 2-6 636 2002 E30 9 22 Riddles 2-6 217 2002 E32 4 5 Spinks 2-6 543 2002 E34 10 14 Riddles 2-6 181 2001 E36 1 1 20 Riddles 2-6 471 2002 E40 1 3 4 Marlette 2-6 69 2002 E42 14 18 Marlette 2-6 275 2002 E44-1 1 5 1 3 Riddles 2-6 275 2002 E44-2 16 13 Riddles 2-6 224 2002 E46 1 8 4 Riddles 2-6 224 2002 E47 19 4 Riddles 2-6 325 2001 E48 20 3 Riddles 2-6 ** E49 21 4 Capac 0-3 ** E50 22 22 Capac 0-3 148 2002 E51 23 24 Capac 0-3 60 2002 E52-1 24 18 Capac 0-3 149 2000 E52-2 25 18 Riddles 2-6 143 2002 E53 26 1O Marlette 2-6 386 2001 E54 27 6 Marlette 2-6 1 38 2002 E55 29 0 Marlette 2-6 1 05 2002 E56 30 16 Capac 0-3 128 2002 E57 31 12 Capac 0-3 43 2002 E58 32 12 Riddles 2-6 174 2002 E59 33 12 Capac 0-3 262 2000 E61 34 16 Capac 0-3 78 2000 E62 35 16 Riddles 2-6 149 2000 E64 36 7 Riddles 2-6 148 1996 E65 37 7 Houghton 0-2 116 1996 E66 38 9 Houghton 0-2 217 2001 E67 39 9 Riddles 2-6 69 2001 E68 40 11 Capac 0-3 42 1998 E70-1 41 11 Capac 0-3 46 2002 E70-2 42 1 2 Capac 0-3 69 2002 E72-P 45 6 Colwood 0-3 86 2002 E73 44 1 3 Ma rlette 2-6 55 2002 E74-1 46 22 Capac 0-3 86 2002 E74-2 47 23 Colwood 0-3 124 2002 E75-1 48 1 8 Riddles 2-6 300 2002 E75-2 49 18 Colwood 0-3 108 2002 E75-3 5O 19 Capac 0-3 190 2002 75 TABLE 4 (Contd) Field Subfieldl Acres Soil Type % Slope Soil Test P STP Year E76 53 8 Ma rlette 2-6 62 2002 E77 54 10 Marlette 2-6 38 2000 E78 55 5 Ma rlette 2-6 31 1 995 E79 56 12 Marlette 2-6 112 2002 E82-1 57 1 7 Ma rlette 2-6 1 16 2000 E82-2 58 1 7 Houghton 0-2 1 54 2000 E84 59 26 Houghton 0-2 1 39 2000 E85 60 16 Riddles 2-6 254 2000 E86 61 20 Houghton 0-2 1 31 2000 E87 62 16 Colwood 0-3 181 2000 E90-1 63 45 Udorthents 0-3 ** E90-2 64 40 Udorthents 0-3 ** E90—3 65 15 Udorthents 0-3 217 2002 E90-4 66 5 Capac 0-3 248 2002 E92 67 8 Palms 0-2 428 2002 E1 16 68 20 Capac 0-3 76 2002 E124 69 10 Marlette 2-6 57 2002 E1 26 70 34 Capac 0-3 60 2002 W24 71 18 Gilford 0-3 69 2002 W30 72 23 Aubbeenaubbe 0-3 39 2002 W31 73 7 Ma rlette 2-6 40 2002 W33-1 74 1 7 Aubbeenaubbe 0-3 254 2000 W34 75 17 Aubbeenaubbe 0-3 247 2000 W35 76 20 Ma rlette 2-6 33 2002 W36 78 20 Ma rlette 2-6 50 2002 W40 80 9 Ma rlette 2-6 65 1 995 W41 81 6 Marlette 2-6 26 1 995 W42 82 9 Capac 0-3 36 1 995 W44-1 83 8 Riddles 2-6 25 1995 W44-2 84 12 Riddles 2-6 66 2002 W46 85 15 Sisson 0-3 36 1996 W47 86 1 3 Sisson 0-3 53 1 996 W48 87 25 Sisson 2-6 57 2002 W50 89 5 Capac 0-3 1 20 2001 W51 90 34 Capac 0-3 43 2002 W52 91 1 8 Riddles 2-6 43 2002 W53 92 18 Capac 0-3 64 2002 W54 93 4 Marlette 2-6 80 2002 W56-1 94 9 Capac 0-3 1 54 2002 W56-2 95 9 Capac 0-3 160 2002 W58 96 6 Capac 0-3 50 1994 W60 103 8 Riddles 2-6 128 2002 W70 1 04 14 Capac 0-3 1 08 2002 W71 1 05 1 2 Capac 0-3 224 2002 W-72-1 1 06 14 Capac 0-3 224 2002 W72-2 107 14 Capac 0-3 1 90 2002 76 TABLE 4 (Contd) Field Subfieldl Acres Soil Type % 5M8 Soil Test P STP Year W73-T 108 3 Riddles 2-6 95 2002 W75-1 109 14 Capac 0-3 86 2002 W75-2 1 10 14 Capac 0-3 95 2002 W75-3 11 1 14 Capac 0-3 73 2002 W76 1 13 1 1 Colwood 0-3 131 2000 W77 1 14 1 5 Marlette 2-6 20 2002 W78 1 15 12 Capac 0-3 1 12 2001 W80-H 118 5 Marlette 2-6 167 2002 W80-J 121 8 Capac 0-3 66 2002 W90-1 122 16 Aubbeenaubbe 0-3 167 2002 W90-2 123 17 Owosso 2-6 148 2002 W90-3 124 17 Capac 0-3 88 2002 W94-1 1 25 9 Marlette 2-6 64 2002 W94-2 126 9 Marlette 2-6 78 2002 1377 Table 4. Physical and Quantitative Features of farm fields gives a list of MSU farm fields as labeled by MSU farm management with subfield, current acreage of each field, most prominent soil type in each field as well as average slope for the prominent soil type and the most recent soil test phosphorus level for that field. STP year column indicates the most recent soil test taken within the last ten years. *STP= Soil Test Phosphorus ** No soil test available for these fields within the last ten years. 77 TABLE 5. MSU FARM FIELDS BEST FIT FOR WINTER APPLICATION OF MANURES. FIELDS FIELDS RES ELD RES 24 30 1 31 35 36 44-2 48 50 51 52 53 54 60 T 5-1 5-2 5-3 8 82-1 80-J 90-3 86 94-1 1 16 94-2 1 24 1 Table 5. Lists fields best suited for winter manure application based on MARI. These fields have phosphorus loss ratings of low potential for phosphorus movement, making these field locations the best fit for winter manure application. 78 TABLE 6. MANURE APPLICATION RISK INDEX SUMMARY TOTAL ACRES BY ”MARI” RISK 0 771 17 4 792 Total Low and CATEGORY: V. LOW LOW MEDIUM HIGH TOTAL 771 Very Low TABLE 6. Manure Application Risk Index (MARI) Summary is a Phosphorus loss risk assessment of potential of Phosphorus movement. MARI was used to evaluate the P loss potential from winter manure applications. Physical and Quantitative Features (Table 4) of the farm fields were used for the assessment. All fields assessed have a potential for phosphorus movement based on MARI. 79 TABLE 7. FARM FIELDS WITH CROPS AND YIELD GOALS 2001 Crop Plan P-rem Total P Field Ac Crop YG Units Lblac Lbs/field E14 4Wheat 75 Bu/ac 52.5 210 E27-1 51Corn silage 16 Ton/ac 45 225 E27-2 5lCorn silage 16 Ton/ac 45 225 E30 ZZCorn silage 16 Ton/ac 45 990 E32 SICorn silgge 16 Ton/ac 45 225 E34 14|Corn silage 16 Ton/ac 45 630 E36 20Alfa|fa 6 Ton/ac 60 1200 E40 4Com silgge 16 Ton/ac 45 180 E42 18|Corn silage 18 Ton/ac 48 864 E44-1 13ICorn silage 18 Ton/ac 48 624 E44-2 1flCorn silage 18 Ton/ac 48 624 E46 4ICorn 120 Bu/ac 68 272 E47 4Com 120 Bu/ac 68 272 E48 3[Pasture, ext. ggazed 3 Ton/ac 55 165 E49 4lPasture, ext. grazed 3 Ton/ac 55 220 E50 ZZGrass maintenance 2 Ton/ac 20 440 E51 24Corn 120 Bu/ac 68 1632 E52-1 18|Pasture, ext. gazed 3 Ton/ac 55 990 E52-2 181Pasture, ext. grazed 3 Ton/ac 55 990 E53 10IPasture, ext. grazed 3 Ton/ac 55 550 E54 QCorn silag 14 Ton/ac 41 246 E56 16lCorn 120 Bu/ac 68 1088 E57 12Alfalfa 4 Ton/ac 40 480 E58 L21Pasture, ext. gra_zed 3 Ton/ac 55 660 E59 12]Pasture, ext. grazed 3 Ton/ac 55 660 E61 16[Pasture, int. grazed 3 Ton/ac 55 880 E62 16iPasture, ext. grazed 3 Ton/ac 55 880 E64 7Pasture, ext. grazed 3 Ton/ac 55 385 E65 7Pasture, ext. grazed 3 Ton/ac 55 385 E66 9IPasture, ext. grazed 3 Ton/ac 55 495 E67 9Trefoil hay 4 Ton/ac 55 495 E68 1 1 Pasture, ext. grazed 3 Ton/ac 55 605 E70-1 11Alfa|fa 6 Ton/ac 60 660 E70-2 12Alfalfa 6 Ton/ac 60 720 E72P BICorn 130 Bu/ac 75 450 E73 13A|falfa 6 Ton/ac 60 780 E74-1 2 heat 80 Bu/ac 54 1188 574-2 23IWheat 80 Bu/ac 54 1242 575-1 18IWheat 80 Bu/ac 54 972 575-2 18IWheat 80 Bu/ac 54 972 575-3 19Wheat 80 Bu/ac 54 1026 E76 8ICorn silage 18 Ton/ac 48 384 ‘E77 101Pasture, ext. grged 3 Ton/ac 55 550 E78 5{Pasture, ext. grgzed 3 Ton/ac 55 275 00 O Table 7 (contd) Lblac Lbs/field Field Ac rop YG Units P-rem Total P E79 12A|falfa 6 Ton/ac 60 720 E82—1 17Pasture, ext. grazed 3 Ton/ac 55 935 E82-2 17Pasture, ext. grazed 3 Ton/ac 55 935 E84 26|Pasture, ext. grazed 3 Ton/ac 55 1430 E85 161Pasture, ext. grazed 3 Ton/ac 55 880 E86 20IPasture, ext. grazed 3 Ton/ac 55 1100 E87 16lPasture, ext. grazed 3 Ton/ac 55 880 E90-1 45(3rass maintenance 2 Ton/ac 20 900 E90-2 40iGrass maintenance 2 Ton/ac 20 800 E90-3 15ICorn silagg 14 Ton/ac 41 615 E90-4 SlCorn silage 14 Ton/ac 41 205 E92 8lCorn silgqe 1 Ton/ac 41 328 E116 ZOICorn silage 14l Ton/ac 41 820 E124 1dCorn 110 Bu/ac 65 650 E126 34Corn 110 Bu/ac 65 2210 W24 1810rchard grass Ton/ac 64 1152 W30 23lA|falfa 6 Ton/ac 60 1380 W31 7A|fa|fa 6 Ton/ac 60 420 W33-1 17Pasture, int. grazed 3 Ton/ac 55 935 W33-2 17Pasture, int. grazed 3 Ton/ac 55 935 W35 20ACP Grass-legume imp 2 Ton/ac 20 400 W36 20ACP Grass-legume imp 2 Ton/ac 20 400 W40 91Pasture, int. grazed 3 Ton/ac 55 495 W41 6Pasture, int. gazed 3 Ton/ac 55 330 W42 9lPasture, int. grazed 3 Ton/ac 55 495 W44-1 8|Pasture, int. grazed 3 Ton/ac 55 440 W44-2 121Pasture, int. grazed 3 Ton/ac 55 660 W46 1iPasture, int. grazed 3 Ton/ac 55 825 W47 13|Pasture, int. grazed 3 Ton/ac 55 715 W48 25 Ifalfa 6 Ton/ac 60 1500 W50 SSoybean 50 Bu/ac 48 240 W51 34Trefoil bay 3 Ton/ac 55 1870 W52 18Alfalfa 6 Ton/ac 60 1080 W53 18A|falfa 6 Ton/ac 60 1080 W54 4Com silage 16 Ton/ac 45 180 W56-1 9A|fa|fa seedinL 6 Ton/ac 60 540 W56-2 9A|fa|fa 6 Ton/ac 60 540 W58 6{Corn 120 Bu/ac 68 408 W60 8ICorn 120 Bu/ac 68 544 81 Table 7 (contd) Lbs/ac Lbs/field Field Ac Org YG Units P-rem Total P W70 14Corn silag 18 Ton/ac 48 672 W71 1ZCorn silage 18 Ton/ac 48 576 W72—1 14Corn silgge 18 Ton/ac 48 672 W72-2 14Corn silgqe 1 Ton/ac 48 672 W73 Corn silgge 16 Ton/ac 45 135 W75—1 14Corn silgqe 18 Ton/ac 48 672 W75-2 14Corn silage 18 Ton/ac 48 672 W75—3 14Corn silage 18 Ton/ac 48 672 W76 11Corn silage 18 Ton/ac 48 528 W77 15A|falfa seeding 6 Ton/ac 60 900 W78 12Corn 130 Bu/ac 75 900 W80-H 51Corn silage 18 Ton/ac 48 240 W80-J 8iCorn silage 18 Ton/ac 48 384 W90-1 161Corn silage 18 Ton/ac 48 768 W90-2 17Corn silage 18 Ton/ac 48 816 W90-3 17Corn silage 18 Ton/ac 48 816 W94-1 9100rn 120 Bu/ac 68 612 W94-2 91Corn 120 Bu/ac 68 612 137 vg rem 51.1 70297 Table 7. 2001 crop plan for MSU farm fields. Crops grown and respective expected yield goals for that crop are indicated in this table. P-rem is the P205 removed by the crop per acre. Total P is the Total phosphorus removed per field (P-removed/acre *number of acres in field) bu/ac= bushels per acre Ext.- extensively Int- intensively Ton/ac= ton per acre yield 82 TABLE 8. NUTRIENT PRODUCTION FOR 2001 USING 1985 MWPS-18 VALUES 1 985 MWPS-18 Yearly Nutrient Production iNutrient Production N P205 K20 Tot N P205 K20 Livestock Wt. No. Ibld Ibld Ibld lbs lbs lbs Beef Feeder (HE) 1 100 179 0.37 0.28 0.32 24173 18293 20907 Beef Feeder (HE) 750 235 0.26 0.19 0.22 22301 16297 18870 Beef Feeder (HE) 500 186 0.17 0.13 0.15 11541 8825 10183 Beef Feeder (HF) 1100 243 0.37 0.28 0.32 32817 24834 28382 Beef Feeder (HF) 750 28 0.26 0.19 0.22 2657 1941 2248 Beef Feeder (HF) 500 173 0.17 0.13 0.15 10734 8208 9471 0-18 months Dairy 500 18 0.213 0.09 0.17 1399 591 1116 D-Lact Cow 1400 1 78 0.595 0.24 0.48 38657 15592 31 185 D-Heifer 750 178 0.319 0.13 0.255 20725 8446 16567 D-dry cow 1400 2 0.595 0.24 0.48 434 175 350 Cull Cows 1000 6 0.425 0.17 0.34 930 372 744 Horse“ 1 000 95 0.3 0.1 61 0.301 10402 5582 10437 Chickens 2 190 0.0017 0.0009 117 62 0 Poultry-Layer 4 1 165 0.0029 0.0025 0.0014 1233 1063 595 Poultry-Turkey* 20 790 0.01 16 0.01 0.0056 3344 2883 1614 Quail/Pheasants 3 509 0.0023 0.0017 0.0007 427 315 130 8wk turkey 4 9 0.0029 0.0025 0.0014 9 8 4 Mink/Ferrets 4 791 0.0029 0.0025 0.0014 837 721 404 Sheep“ 100 400 0.042 0.02 0.039 6132 2920 5694 Sows 275 369 0.07 0.05 0.05 9427 6734 6734 Swine boar 350 22 0.09 0.064 0.064 722 513 513 Mixed Nursery 50 572 0.025 0.017 0.0175 5219 3549 3653 Swine-Grow/finish 100 21 1 0.04 0.03 0.032 3080 2310 2464 125-200# Feeder 163 289 0.075 0.058 0.058 791 1 61 18 61 18 200# + Feeder 250 185 0.085 0.06 0.065 5739 4051 4389 Pavilion 1000 37 0.3 0.161 0.301 4051 2174 4065 7060 225018 142577 186837 *All animals for these species assumed as adults at respective weights. TABLE 8. Shows Nutrient production of nutrients based on Mid West Plan Service (MWPS) 18, 1985 edition values for livestock manure production. Yearly production levels were calculated by multiplying the number of animals by the daily nutrient production by 365 days per year. Yearly nutrient production values were totaled. Wt=Weight, D-= Dairy; HE= High Energy; HF= High Forage; lb/d= pounds per day nutrient production; No.=Number 83 TABLE 9. NUTRIENT PRODUCTION FOR 2001 USING 2000 MW PS-18 VALUES 2000 MWPS-18 YearIyNutrient Production Nutrient Production N P205 K20 Tot N P205 K20 Livestock Wt lNo. Ibld Ibld Ibld lbs lbs lbs Beef Feeder (HE) 1100 179 0.54 0.21 0.32 35263 13720 20907 Beef Feeder (HE) 750 235 0.38 0.14 0.22 32430 12008 18870 Beef Feeder (HE) 500 186 0.14 0.1 0.11 9486 6789 7467 Beef Feeder (HF) 1100 243 0.61 0.21 0.36 53946 18625 31930 Beef Feeder (HF) 750 28 0.41 0.14 0.25 4172 1430 2555 Beef Feeder (HF) 500 173 0.14 0.1 0.11 8823 6314 6945 0-18 months Dairy 500 18 0.155 0.045 0.145 1008 295 952 D-Lact Cow 1400 178 0.82 0.42 0.48 53222 27287 31 185 D-Heifer 750 178 0.23 0.07 0.22 14774 4547 14293 D-dg cow 1400 2 0.5 0.2 0.4 364 146 292 Cull Cows 1000 6 0.36 0.11 0.28 786 240 613 Horse” 1000 95 0.28 0.11 0.23 9690 3814 7975 Chickens 2 190 0.0023 0.0014 0.0011 0 97 76 Poultry-Layer 4 1165 0.0035 0.0027 0.0016 1165 1148 680 Poultry-Turkey 20 790 0.0126 0.0108 0.0054 3160 3114 1557 Quail/Pheasants 3 509 0.0029 0.00205 0.00135 509 380 250 8wk turkey 4 9 0.0035 0.0027 0.0016 9 8 5 IMink/Ferrets 4 791 0.0035 0.0027 0.0016 791 779 461 Sheep‘ 100 400 0.04 0.02 0.04 5600 2920 5840 Sows 275 369 0.05 0.04 0.04 6642 5387 5387 Swine boar 350 22 0.05 0.04 0.04 396 321 321 Mixed Nursery 50 572 0.0367 0.02 0.015 7436 4175 3131 Swine-Grow/finish 100 211 0.07 0.04 0.025 5275 3080 1925 125-200# Feeder 163 289 0.085 0.055 0.04 8959 5801 4219 200# + Feeder 250 185 0.09 0.06 0.05 5920 4051 3376 Pavilion 1000 37 0.28 0.11 0.23 3774 1485 3106 7060 273600 127961 174318 *All animals were assumed adults at respective weight TABLE 9. Shows Nutrient production of nutrients based on Mid West Plan Service (MWPS) 18, 2000 edition values for livestock manure production. Yearly production levels were calculated by multiplying the number of animals by the daily nutrient production by 365 days per year. Yearly nutrient production values were totaled. Wt=Weight, D-= Dairy; HE= High Energy; HF= High Forage; lb/d= pounds per day nutrient production; No.=Number 84 TABLE 10. MANURE SPREADERS USED ON FARM Spreader ID Description Tyg Capacity Units JD 785 John Deere Push Off Solid 350 ft3 JD 455 John Deere Small Solid 230 ft3 Houle 4300 Houle Tank Liquid 4200 gallons Nuhn 3600 Nuhn Tank Liquid 3600 gallons IME IME (Better Built) Liquid 3000 gallons H&S 175 Horse Barn H&S Solid 125 ft3 680 NH Poultry Solid 280 n3 8014 Knight Dairy Sli_nggr Solid 220 ft3 329 NH Vet Farm Spreader Solid 100 ft3 1802 H&S Dairy V-Bottom Solid 300 83 GR Truck 483,321 Grain Trucks Solid 405 ft3 Dump Truck 642 Dump Truck Solid 135 n3 TABLE 10. Lists manure spreaders available for use on MSU farms. Spreaders are classified as either liquid or solid and available capacity of each is given. Also listed are trucks used to transport manure to piles. Ft3 = cubic feet 85 TABLE 11. 2001 MAN URE TOTALS HAULED Solid Liquid Manure Manure Total Total Facility Loads Tons Loads Gallons BCRC 314 1413 124 496000 Cow/Calf 1 93 772 Dairy 1087 4424.5 491 1991600 Horse 190 340 Pavilion 863 3069 Poultry 30 67 1 3000 Sheep 77 269.5 Veterinary 1 94 667 Reloads 264 918 otals 3,212 11,940 616 2,490,600 TABLE 11. Manure Totals Hauled. The loads of manure taken fi'om each facility were counted and periodically weighed. Total gallons hauled were based on capacity of the spreader and approximate level in the tank to get total liquid hauled from each facility. 86 TABLE 12. MANURE ANALYSIS T slotted floor 1000 w/o bed RC East Feed Lot ton Metabolism 1 000 w/ bed W ton . sol W Back ton w/ bed Barn S ton . sol W Back ton . sol Pad ton w/ bed South Heifer ton Heifer 1000 Metabolism 1 1 000 North Slotted 1 1000 Parlor 2. 1 000 Gutters ton South Slotted . 18. . 1000 Waste Feed ton Stock Pile ton Stock Pile ton Barn ton et Manure ton id w/ bed Piles ton id ton w/ litter Solid Pile ton Pit 1000 ton ton Barn Pens 1 ton 4 Swine MOF 1000 C ton Endo Endocrine 1000 S Swine Solid ton SL Tank 1000 1 3 Old Sw 1000 et Clinic Clinic 1 1 ton et Farm Farm 1 1 ton TABLE 12. Manure analysis values from grab samples of the various manure storage facilities. Liquid or slurry manure was taken after agitation during pumping. Solid manure samples were taken midway through hauling manure from storage facilities. Analysis values and units are given for each facility. *Sol= solid, liq=liquid, bed=bedding, comp=composted, Temp=Temporary, Sw=Swine 87 TABLE 13. NUTRIENT PRODUCTION: MANURE ANALYSIS lbs/wet lbl1000 ton gal Totals Tot Tot 0| N P205 K20 N P205 K2 N P205 K20 solid liquid Manure Ton Gallons --- analysis -- m analysis $ Total BCRC pit 496000 40 27 34 19840 13392 16864 BCRC Lots 464 1 1 7 10 5098 3244.5 4635 BCRC- Met 76000 40 27 34 3040 2052 2584 BCRC S 464 21 18 26 9733 8343 12051 BCRC- wbk 486 12 10 14 5832 4860 6804 C/C S 764 21 18 26 16044 13752 19864 C/C wbk 8 12 10 14 96 80 112 D-C 469 12 10 14 5628 4690 6566 D-H/S 3767 9 4 10 33898 15066 37665 D-HL 424000 40 27 34 16960 11448 14416 D-metab 30000 24 18 29 720 540 870 D-NL 308000 24 18 29 7392 5544 8932 D-PL 789600 4 4 4 31 56 31 58 3156 D-SL 440000 34.3 10.9 29.6 15092 4796 13024 D-wbk 189 12 10 14 2268 1890 2646 Horse 340 14 4 14 4760 1360 4760 Pav 3069 14 4 14 42966 12276 42966 Poultry-S 67 56 45 34 3752 301 5 2278 Poultry-L 3000 68 64 45 204 192 135 Sheep 270 14 9 25 3773 2425 6737 Sw-oid sol 82.5 10 9 8 825 742.5 660 Sw-comp 217 10 9 8 2170 1953 1736 Sw pits1- 4 78000 36 27 22 2808 2106 1716 Sw-Endo 24000 36 27 22 864 648 528 Sw-Slurry 1240000 36 27 22 44640 33480 27280 Vet farm 667 14 4 14 9338 2668 9338 260897 153721 248323 Table 13. Manure analysis of manure sources and total nutrient production for each and as a whole. Liquid/Slurry analysis is in Lb/ 1000 gal (pounds per thousand gallons), Solid analysis is in lbs/wet ton (pounds per wet ton). D=dairy, Sw=Swine, comp=compost, Endo=Endocrinc, sol=solid, wbk=weighback, PL=parlor liquid, SL=south liquid, NL=North Liquid, Tot= Total, metab=metabolism, HL=Heifer liquid, H/S=heifer solid, C/C=cow/calf, D-C=Dairy Calf, BCRC=Beef Cattle Research Center, BCRC-S=Beef Cattle Research Center solid, Pav=pavilion. 88 TABLE 14: CROP NUTRIENT REMOVAL utrient Removal lblac lblac lblac Total Nutrient 7 1 71 1 Grain 1598 Maint . 1203 21 Grass 1 nt Graz 671 571 1 01 1 1 07 38 1 7 1 55. 1 1617 141 13 271 TABLE 13. Shows the crops grown in 2001 and the number of acres that were planted to each crop. Using the 1985 version of Mid West Plan Service-18 the nutrient removed by each crop based on yield was used to measure the total nutrient removal for MSU farms in 2001. Leg.=Legume; Alf= Alfalfa; Main= Maintenance; Int. Graz= Intensive Grazing; Gen. Graz= General Grazing; prod.= production. Lb/ac = pounds per acre. 89 _ t ‘Elafllflm TABLE 15. NUTRIENT BALANCE 1985 MWPS-18 N P205 K20 Total nutrient production 225018 142577 1 86837 Total nutrient removed 271999 69535 230360 Excess Produced 73042 Additional Nutrients Needed 46981 43523 2000 MWPS-1 8 N P205 K20 Total nutrient production 273600 127961 1 7431 8 Total nutrient removed 271999 69535 230360 Excess Produced 1601 58426 Additional Nutrients Needed 56042 Manure Analysis N P205 K20 Total nutrient production 260897 153721 248323 Total nutrient removed 271999 69535 230360 Excess Produced 84186 17963 Additional Nutrients Needed 11102 Table 15. A comparison of nutrient balance between the three methods of nutrient production used. Total nutrient removed is the level of nutrients that would be removed based on MWPS-18, 1985. This level is the same for all three calculations. *Ail values are in pounds 90 TABLE 16. PHOSPHORUS CHANGE Soil Test P Adding Removing By M 111 P P lb P/acre --lb P205/ acre -- 10 12.5 20.5 15 10.2 16.8 20 8.9 14.5 25 7.9 13 30 7.2 11.8 35 6.7 11 40 6.3 10.3 45 5.9 9.7 50 5.6 9.2 Table 16. Initial STP (soil test phosphorus level) as indicated by the Melich [[I soil phosphorus test. The lower the initial soil test phosphorus level the more P that has to be added or removed to change the STP level of this Belknapp soil in Western Kentucky by llb/ac (PzOs). Higher STP levels (50 lbs P205 / acre) require a smaller addition or removal amount to change the STP by 1 lb/acre P205. This data comes from derivatives of equations that were developed using addition data and removal data. 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Erosion Runoff mace ' 3‘“ (Ssdlmontsnd Solublo P) Surf-co Wat-n -—-> (Eurrophlchon) i "mum- 8%? Sorption SORBEDP ,-"~‘ I \ CLAYS Soil Solution P Al. F. Oxidos —1 taro; HPO:’] 1 gym; * Immobilization Soil Biomass (living) Soil Organic mm: Solubio Organic P + \ \ ’ I r , i SECONDARY P " ‘9’, ’ Minorsliution ‘\ . MINERALS 000°, ’ 4 . CI. F.. Al ’ l I \ PHOSPHATES ' ' x , Organic P 0 0“” ' PRIMARY P 99 , ’ MINERALS , , ’ Lawn“ APATITES ’ 1 Figure 1. Phosphorus Cycle reveals the movement of phosphorus through the environment. Weathering of phosphate from rocks becomes a nutrient in the soil, from which plants take up P. Plants are ingested by animals, and returned to the soil as an organic waste product. 103 FIGURE 2. NITROGEN CYCLE ""11111111'"I1 I111 Vigil ‘ ‘1' ' 'r .. .. .7. ~14. 1'1“”11111”1I111 “III‘II 11111.":1‘ I11 11111108“ I "'III‘ 111‘“I I11111"'I 11'1“" ‘ “11“. H“ “Willi ”“3““ u‘ h ‘ I“ “I‘u‘ “1"." 11 , €le I111 “:UIII1I11I 11” .ILII1I11 I311 111‘ 111 IIII111111"III II1111 ‘ I III 111":‘IIII11111" 3:111 ‘1 . It1.111|mII IimIIIIIII 11"“ 11 1 'r 1111 “11:11:11“ It: IIII|III 1111 1‘“ I "I‘, 1111 l 11 - ”ml I11111‘III‘3IN “ a WI 11 1111111111“ 1 ‘7 a. I a W. I IIIIIIIII'IIIIIIIII11I‘1III11111I1.11“”I 1111111, 1, 1 "III I‘“ 11 y . h . I 1““ :11 III iill:fl:1}l"‘“””1 I?!” 1111 . 11111 IIIIIIIIIIIIIIIIIIII1 I11‘ 111111111111 11 '1 i?1[“' 1111111 1 1 1111‘1111111111111111 11 1 11111111111111 I “111111 '11 1111111111 Figure obtained fi'om: h:_t_tp //www. geog. ouc. bc. ca/phégIeIogchontents/9s. html Figure 2. The Nitrogen Cycle, nitrogen movement through the environment in various phases and physical states. FIGURE 3. PHOSPHORUS CHANGE Phosphorus Change 6 25 a S 3 5 a‘ 20 2 a E 9 15 .. .5 g +P-addmon §' 2, +P-extraction an e 10 E E .C _. a. 5 n P; ‘ ,2 m :L 0 H 10 15 20 25 30 35 40 45 50 Mellch Ill Soll Test Phosphorus Figure 3 depicts the change in phosphorus soil test levels when phosphorus is added or extracted from the soil. Initial STP (soil test phosphorus level) as indicated by the Melich 111 soil phosphorus test. The lower the initial soil test phosphorus level the more P that has to be added or removed to change the STP level of this Belknapp soil in Western Kentucky by llb/ac (PzOs). Higher STP levels (50 lbs P205 / acre) require a smaller addition or removal amount to change the STP by 1 lb/acre P205. This data comes from derivatives of equations that were developed using addition data and removal data. Added P 39.6/sq it Pst Pst= P soil test Removed P 64.9/sq it Pst Pst= P soil test (e-mail conversation on 10/27/00 with Gary Pierzynski, Professor, Soil and Environmental Chemistry Department of Agronomy, 2004 Throckmorton Plant Sciences Center, Kansas State University, Manhattan, KS 66506-5501) 105 FIGURE 4. UNIVERSITY FARM FIELDS UNIVERSITY t FARM E . 8014014 3OF18 H052F16 H053F16 H048H2781 H048H2782 "080051 H077F15 E090fl10351 W098W75 HOSOFSOSE EOQBF022 E090H10352 Figure 4. MSU farm fields, location and boundaries and the farm facilities respective locations on MSU farms. 106 FIGURE 4A. CHANGE IN ACRES Change in Acres 1480 1460 1440 1420 1400 1380 1360 1340 1320 1.0 ’\ Q) Q, Q '\ ‘L o.) o.) 9 Q> Q Q Q '9 '9 '9 '9 r19 r19 q? + Acres Years Acres Figure 4a is the change in acres from 1996 to 2002. Reduction in acres available for MSU farms manure applications and crop production is not a predictable trend. Acres change due to development of farmland, and research necessities. MSU farms land available for manure application and crop production has decreased over 60 acres in the seven-year period. 107 FIGURE 5. AERIAL PHOTOGRAPH OF MSU FARM FIELDS. i! ,-.. ’ NEW“ ! . " ., . ,, i , ~‘. ' .l...-w. ;. My}: ‘ 1""1’ " " v . .I -. .1. 9.4. .‘ .. FIGURE 5. Aerial photograph of Michigan State University south campus farms. Most of the land is utilized for crop and feed production; some is used solely for the purpose of research to achieve better crop yields and varieties. 108 FIGURE 6. TOPOGRAPHY MAP OF MSU FARMLAND ‘ l} I l l I 1_' l ' 1 _ 3i ‘ i 3 ' «93“.;333. A" ' I, ,l ‘ l g _ , . 3 I 3 '. [H ‘ ‘ Eff l ' a. t ' I 2.22:. .135“ t Klmcfi I l 9 1 :1 , r W..-“ l r . :3L3.-j ; i n l l W, .. '1 ”‘0‘ - I 3“!- ; l 3 5 3.? 31 l i \:. 3 .l *2 Figure 6. The topography of MSU farmland reveals various elevation heights as well as water resources. 109 FIGURE 7: SOILS MAP OF MSU FARMLAND AREA N 110 FIGURE 7: (contd) Figure 7: Spatial relation of various soil types on MSU farms. Slopes range from 0-6%, predominant soil types include Capac, Riddles and Marlette. 111 FIGURE 8. ANINIAL UNITS GRAPH Change in AUs 2000 1 900 1 800 1 700 1600 1 500 + AU — Linear (AU) AU 1400 1 300 1200 1100 1 000 1996 1997 1998 1999 2000 2001 Year Figure 8 graphs the change in animal units over time. The increasing trend of animal units will require an increased land base to balance the farm system or a higher level of management to maintain a balance. The equation shows an increase of approximately 77 animal units per year. Data in graph is fi'om Table 2. 112 FIGURE 9. SOIL TEST ANALYSIS GRAPH Weighted Average Bray P1 150 — , — —- m E 130 _ 5‘ a 110 ‘ ' 5' J. Y y = 4.5278x + 95.123 90 " RT: 0.6642" 70 l l l l I l l l l l 1992 1994 1996 1998 2000 2002 Year Figure 9 data is from table 17. The weighted Bray P1 levels from MSU farm fields over time reveals an overall increase of STP of 4.5 lbs per acre. The increase predicts an eventual P level of MSU farm fields above the recommended STP level for which manure application can take place according to Generally Accepted Agricultural Management Practices for manure application, GAAMMPs .113 .88 com wagon .maonmmosm “m8 :8 A 35820 .3 vapours—8 mEou 8.5 DmE .3 «Sufi O02!— q? no G 0.: Z wmc i won can I FON OON .. Fmr omr I r DIEII 95.220: one - we con .. re cow - 3. car. E u 5“ mil acm. maze nap—0:350: l-COI- U '3 3 F>>0_> HERA mDM—CIA—mC—hn— >M— GHGCU mA—QEE _Zflda— EC .522 .c— ~5ch 114 FIGURE 11. DAIRY NORTH AND SOUTH PITS, DIMENSIONS AND CAPACITY ’3 L7 - I N S? C] 2;... :5 ‘2’: E13 12‘; t - _ _- - — — _. _ _§ 1‘ =- 1 $ .3. c~ ‘ I —-— — ~- — —— —-~. —— — — -— —— -— — -—I - I I . | 3 I 1 1 I I l ‘ ' . l - '9‘, 3‘ I l Iw ”J . *Iv I: l I if; 0 r f“ I.) Q ; “" i :1 ll] 3‘ 3 3' L ‘f‘ I I: {A A ‘ ‘ . 3 D V \ .2, m m I it: h 9 I t “I? 3‘ I” I n ’l ‘ I“..- I.-- \,__________,_. _ ‘ w . >‘ I L J a ’ ‘5 26 r l ,- A ‘ 4) . fir r" I“ \L ” " ”'"*x I I ~' "— ‘x 3 1 ; ..'_ ('~~.-- . x <—-- I cubic loot -7.48 gallons 27 § 27 ‘6 Tank Size: 27' X 136' Capacity: 136' X 27' X 10': 274.000 gal. 11'" 9"- 247.000 gallon» 1’9 8'- 2 19.000 gallon» .91" 7‘=- 192.000 gallon» New Dai|_'y_ 238' Long. 136' Tanks 126' East 1/2 of Building 1 12' West “2 of Building 86' Width Figure 11. The Dairy North and South pits are each 136’ long X 27’ wide and 10’ deep with a volume of 274,000 gallons each. 115 FIGURE 12. DAIRY HEIFER PIT, DIMENSIONS AND CAPACITY I I 1 12 ‘ (F . .1- ..-........ .. "““”II“' .._-- .._I.-...--~-._-_. r . I I“ ____ 7, . _.____.- u. ‘ -. o x \l I J m I ,___ _.._... ‘ 30' x 112'): 10' deep Total: 250.000 gallon l .q- 9'== 226.000 gall. ; l 'a' 8': 200.000 gal. l I I I I 1 I I I i I I i I f I I l i I I I I . l I I ; I I ‘ i I E c I i, i ‘ "I i i I--- l Figure 12. Dairy Heifer pit is 112’ long, 30’ wide, and 10’ deep, resulting in a total volume of 250,000 gallons. 116 FIGURE 13. DAIRY PARLOR AND MILKHOUSE PITS, DIMENSTIONS AND CAPACITY Dairy Parlor & Milkhouse “‘ .—~-....._.. . Parlor Pit = 40' x3 1’s? X3383" __ "iTuBi'c ran: ! ' ' 7'435’91‘1'11I Total: 43,000 gallons mamas. = 2'03 X 13' x" éi T Total: 21,000 gallons ‘ I g I”) ,1 . k-H * ”4’2 \fi 3 3 a, I at w ' 2.0 ' 20' Figure 13. The dairy milk house has dimensions of 40’ long, 18’ wide and 8’ deep, resulting in a volume of 43,000. The Dairy Parlor has dimensions of 20’ long X 18’ wide and 8’ deep with a total volume of approximately 21,000 gallons. 117 FIGURE 14. BEEF CATTLE RESEARCH CENTER PIT, DIMENSIONS AND CAPACITY $ f" 1-} l I 0‘ I . l \\ ~ l i . I ~ i i . P - i —- —- - J l l l I - I ~ ~ a '1' r— - It :1 ix ‘ - I -—-——-~ ——-~1K, ~ E 0 ~99 ) r. a r f' E: ! a _— ‘y a .1”- - “*1“: . - _- . ., - ‘ . I I .., I ’ C: 11 : I ‘ l c. ' gr. ? --. .. I" ,. i ._ q '6 I u . I Y I > t _. 7 '2) i tr h I -1 -— —--—~—— l-é ' ‘ 4 1 l . .. . . \ --- ~ . l I M — I 4 (1 I I I E i I I * " 'I * r“— ~ 3. l \x. :1 i L I or, i ": I, -»---4 — ---_.....‘_________ j —’ i ‘3 I u . c. . l: l .‘ ~ - -' ' r*- + — -— —---— ---~-— “flu--fllr l , , i g, I l ,‘ § :- ~= 1: f‘ ' ' I -~—‘ ~-~--~----— ~— wall,» E =. ==. :5 >3 I ‘ i .1“ '3" -‘ i' l . _-‘ -9 :1' -' . “ -v-~ ~ I E 5i :1: 3+ 1 I i , v. -. » o I :: .;_. 4.. 2; J’ I I = 3 :r. w 3‘ t = M. -t u’. 'r i L I 5"""c_'3~'i :1 " 1.-.. i"! 9:- c. c 1‘ . -- - -_" = -< ' “V Z; 4: -v .~ ‘3 j " , 3'4 I 31:“ 5": S" 33 | .2, _.__ __: ...,. + ._ '. _ a - a '3 .- //_.»gf= ' _ ~ 5 : gens-5- u ;._. :: u. y 7 i. . I u. g, " .‘,, "" .7, :1 '=.' -? '2 N ~ - I ‘ w -.....- u 1; ' 3' '= 2 ,.,.-~.- 3 l I -'::,_"='._=‘= \- y l I l -, Z; : E a c .3 ‘2 ) .-._.- _M .. _.‘ E ::.~ 3 c. a o {-2 ,_ 5 = z' 7 :7‘ E’ :- ... E’ \\ 3i,,__§.7,.¢ "“ .32; ‘ nnunn u I -- ud-o \ I '0‘, r-l .d W” w ___.- ._-.. ._\ “ n It u~_ Figure 14. Beef Cattle Research pit has dimensions of 200’ long, 40’ wide, and 10’ deep. Total volume of BCRC pit, 598,400 gallons. 118 FIGURE 15. OLD SWINE FARM PITS, DIMENSIONS AND CAPACITY ~ 1 PW l noxmvms DNILSHJ. i ' raj “If C) k\. (g i @ 7'7 E ‘1 g I w 4' a} , M " 9‘ 57 "i a is 2 8 I ~ u a - — A A a- t: z :3 5 ‘ 0...“: »@—-~+ ' x; a I l 1 noxmvxsas 3 92410233: I W ' § 1 .1- S I--(—-«-.-:-—- G I {5" n‘ l h ‘< “ a t“ “ '1 ‘ .v\ ‘3 - . I DNXHSINxd-DNIMOHD I; . g F / I - é , r"_ § 3.5 s; It; ' E'- _: g< 3 2;; 2 E e" E- is: , _ I *— ~ .5 - '(m) g: .2 l r i - g \ ' - , .‘5 . ,w. E I ,3,“ g a K (fr) : ______IT—/ \x sum . :5 3.14:0 Etc .2: o A :5 I ____.. ’E B s: [:l . E} a 3 _. a |_. :7} , ‘ ___‘ 1 g“ a“ a a“:: 3% g3 u -- : §§M§EI§°§ —7 ‘Q E g. N' E g ' g O6 5 3 W173- ’“”""“ I ,-=E%“."?*oav'-§, 33:: ijllg'é‘v'g‘gjl a '23 ‘, ‘ '5 ’ . .35“ .sgefii‘i’u—é (I: — ir— = i=5. :3: .5 _3 E E r“ ' ° 2 . e a E ,5 3 a: II- ‘I- ”I. Z. a (— .—'. (4 N5 ‘17 at; \c' [‘3 06 Figure 15. Pit 1, small farrowing pit, capacity of 2,000 gallons; pit 2 large farrowing, dimensions, 12’ long, 12’ wide, 10’ deep, capacity of 10,000 gallons. Pit 3, new farrowing, capacity of 2,000 gallons; new finishing pit dimensions of 54’ long, 10’ wide and 8’ deep, total volume of 30,000 gallons. Lane Septic, dimensions, 12’long X 12’ wide X12’ deep, 13,000 gallons, pit 6, breeding septic, total capacity of 8,000 gallons. Test station lagoons, 4,000-gallon capacity for each, and total of 8,000 gallons. 119 FIGURE 16. NEW SWINE FARM, SLURRY TANK, DIMENSIONS, CAPACITY AND FACILITY LAYOUT wes'r SHORT TERM MANUAE 8T0 no.5 COMPOSTING: sHED. 5451' most TERM MANURE m met-m ND SIORPL'mE FEW C8413 A WellHouae m -#29 .————-D LIQUID MANURE STORHCflE MPINCn IiE'ON l! I 564 WELL H0035 #30 x I 800 2 Figure 16. The new or south swine farm has one large slurry storage tank with the capacity to hold up to a half a million gallons of slurry manure. 120 FIGURE 17: EMERGENCY PHONE LIST IMPORTANT INFORMATION Complete this page, make copies and post next to each telephone on the farm. Local Emergency Assistance Telephone Numbers: Fire Department: 911 Local Police: 911 County Sheriff: 664-1654 State Police: 332-3521 Ambulance: 911 Emergency Management Coordinator: 719-2153 Farmstead Information: IName of Farm: MSU Farms-Sheep, Swine, Dairy, Beef Cattle Research Center, Purebred Farm, Horse, Poultry Address of Farm: South of MSU Campus, Between Hagadom and Collins (East and West borders) and Jolly and Forest Road (North and South borders), Dependant on which farm. County: lngham Directions to Farmsite. Help can come from any direction. Be sure to write down exact, simple and accurate directions to the farmstead: State and Federal Agency Telephone Numbers: MDA Agricultural Pollution Emergency Hotline: 1-800—405-0101 EPA National Response Center: 1-800—424-8802 MDEQ Pollution Emergency Alerting System (PEAS): 1-800-292-4706 Michigan Poison Control System: 1-800-464-7661 (1-800-POISON-1) Figure 17: Emergency contact phone numbers in case of a spill or breach of storage facilities. 121 FIGURE 18. BEEF CATTLE RESEARCH CENTER FACILITY LAYOUT AND FLOW DIRECTION N fir— FILTEE 5m? AREA ROAD { BEEFCATILE RESEARCH CENTER 4714 L M US? 2 LL ! ‘3 I '§ §_ ,. . E 1' fl 3;: l l (255'? gsé‘ :55 5 EH“ Figure 18. In the event of a spill at the BCRC, manure waste would flow to the south and east. 122 FIGURE 19: DAIRY FARM FACILITY LAYOUT AND FLOW DIRECTION \ " moi M “ITS. as. k u u __ - _ --— -. _ — .— -- _. —— —— o— I ”III “II ‘I . k h I- 5 L1 1T “I . h— ‘T. : MANURE . :3: ~- ' lsmoe ' conic: no» Z———> l9 4 ,‘ ' . ‘ Ml ,. . . . ‘ ‘- - - -> be l ‘ I .__--~I.‘._. ' ’ l Figure 19. In the event of a spill at the Dairy farm, manure would flow to the east and north. 123 FIGURE 20: HORSE RESEARCH FACILITY LAYOUT _S-nllary Sawcr llolcllng "l‘nnk { '1 i.. l _ HORSE RESEARCH I g l / CENTER 8 L m/ ":w 456 “”‘e ~ - M - L BENNETT . .. .. .—___......_—._.. . f.'_... Figure 20. Horse facility layout, all manure is handled as a solid. 124 FIGURE 21: PAVILION FOR AGRICULTURE AND LIVESTOCK EDUCATION LANE - 570 uous. -l‘. r PAVILION FOR AGRICULTURE AND LIVESTOCK EDUCATION 212 FARM Jr. Figure 21. Pavilion facility layout, all manure is handled as a solid. 125 FIGURE 22: POULTRY RESEARCH CENTER FIGURE 22: POULTRY RESEARCH CENTER -- -----——u——- -_--—----—-—- Figure 22. Poultry manure is primarily handled as a solid; if the one turkey collection tank were to breech it would flow to the south. Total capacity of Turkey pit is 3,000 gallons. 126 FIGURE 23: SHEEP RESEARCH CENTER 5 /‘ Aug): [I m u (3'... Shell 2—9 \SELLJER SYSTEMS — TUNE- 1999 Figure 23. Sheep facility layout, all manure is handled as a solid. 127 FIGURE 24: OLD SWINE RESEARCH CENTER '__]| I I“ , .————w¢u. Ho‘fii \ F ‘ . ....... SWINE ‘ RESEARCH a...“ CENTER ( . A B ENDOCRINE 1"? C RESEARCH N . I CENTER - Figure 24. In the case of a breech at the old or north swine facility manure would flow to the east and north. The Endocrine Research Center, manure would flow to the west and north. 128 FIGURE 25: PUREBRED BEEF FACILITY OR COW -CALF FACILITY HOLDING #3331" mm Purebred Beef Cattle Teaching Center Figure 25. Purebred beef facility, all manure is handled as a solid. 129 l(lilifllln))l)i)|(flit