“n 18 h J ’OI‘.’ I . a . C K.‘ N ~ Do~ ‘ 9‘ Q Q. fl"! \1 D ‘0 ‘3' .co- \= "I". ’5'- ” ____::_,_____A__ __._________;_._,___:2__ ”A... 01.‘ II hr ., .a 0-169 This is to certify that the thesis entitled The Effect of Calcium Carbonate on the Manganese status of Five Acid Organic Soils presented by John C. Shickluna has been accepted towards fulfillment of the requirements for Master OLSQEnQLdegree in_S.QiLS.cience Major professor Date AuguSt 233 1951 ‘7‘". lJJo . T/\IIT lung: THE C C Y‘:' (3 :1‘1-‘l-YT‘DIr'mII‘C .lsuthlglL IV’J. ‘v rTlTj CF. T -n&; -b Cit: EU a JY John C. M“ r. m~~v~ '1'" h ‘aAJ—JS-LD Submitted to the School of Grecuete State College of Qtricultur e and in partial fuli'illment of the for the degree of \l-I‘F‘] ‘1-r1-~ LJ'LLJL rm (IF ('11 IT? ‘— ALA—J E FIVE ACID CESAR Shickluna - -' 1—.rww-f-f1r‘m hmD MP L‘v' 7 .“7f‘ .1 vficxrw lcnx-‘e‘! \‘Y-_Lo‘;U;-l IC oC‘LS Studies of ric.1 Applied Science re :ysil e1 1e.'1ts €111 Depertrent of Soil Science 195 (HESIS ACKNOJLEDGSKEAT The author expresses his sincere appreciation to Dr. J. F. Davis for his helpful suggestions and guidance throughout the progress of the work. The writer is /‘ tirk Lawton and Dr. E. J. Benne for their H indebted to Dr. hind assistance and advice and to Dr. L. H. Turk for his guidance during the course of study and for his criticism of the manuscript. He eccnowledges the helpful sufljestions given to U v.0} him by his fellow graduate students. IlJTRODUC TIOII o REVIEJ Or LITERATURE PROCEDURE . . BETHCDS OF CdEEICAL ANALYSIS EXPERILELTAL RESULTS DISCUSSION . . SU—hfi HAL-I. o o o BILLIOGRAPn“I . TABLE OF COI Page ll 14 47 55 59 ’ m I all IJlRQDUCTICn The in:01tence of an ade nus te supply of calcium in rganic soils has lone been reco; nized as essential for 'ields. Lowever, specific informativn regard- ing rates of epolicetion of calcium reguired to bring about Optimum conditions in acid organic soils is limited. It is imoortant to recognize not only the beneficial 5 effects of cm cium, we li ed in the form of lime (calcium carbonate) in Optimum amounts but also gossible detrimental effects associated with overliming. Soil reaction (pH) is gene ally considered as a pre cticel measure oi the lime neeis oi an organic soil. It has been observed, however, that creps growing on organic soils with similar soil reaction vary in the degree of eSponse irom lin e aoultcationt. In extreme cases fair crops of onions have been piodiced on soils with a l w pH and on other organic soils with the same p3 a crop failure would r Silt. Soil reaction, therefore, does not appear in all cases, to be the only criterion by which the lime require- ment of an organic soil 0&1 be base Wnile tne need for line is re00311ized as a recommended soil mare er“nt practice, the addition of excessive amounts of lime to a soil SM1 uld Le avoide d in order to grevent tne inducing of certain micro-nutrient ml n1ent delician~s, notably manganese. manganese, iron and aluminum availabilities are highest in the soil reaction range from intensely acid (pH 5.0 - 5.9) to strongly acid (pi 4.6 to 5.1). It is imoortant that these micro-nutrient elements are in Optinum amounts in the soil, thus preventing a deficiency U) (I) ' 71 .2: . ‘J when too little is present or a toxicity when they are oi vrt d O O in excess. The former condition commonly occurs on soils heavily limed, Whereas the latter condition freguently arises when the soils are too acid and in need of lime. The followine studv was instituted to investi ate a b v C: umber of factors that might be associated with the causes 0? variation in the response of different acid organic soils .5. to lime agplications. -3- ' BEVIiJ CF LITEnnTUKB L4 ,4 H L.) 0.1 Lv. j ‘1 *2! C) ( f) I I x ‘ . ,. 1,. . , .1-'.-. ' - ”131° '1 -__‘1 acts t1e L"D§er‘lcS o1 szhulc soils nave la (37). 1.1. bee n resorted to be similar to tntse oi mineral so Organic soils tossess, as do mineral soils, the prooerty of ionic exchin;e (19, 24). The difference is one or degree, peat soils containing more aosorbed cations than do mineral 15 inb1eren differences were tl. found between tdese soi s. Beat soils, contai1ing compara- ‘ ceflgxhnn were 0: e111011e ed to neutrali and precipitate certain acids in the plants th rselves, which ale grobsbly largely (7) by-products, produced as a sult of certain vital lee ctions . Ii calcium in these forms is (O in the growth of the plant {I I. not furnished at a SUlll iently rapid rate, then the rate of 0 these reactions is lowered CCOiQLb-'v as is also the rate of plant growth. iect of the two. In most instances Five acid organic soils were obtained from the following locations in Lichigsn during October and November, 1350, from the unper 3 inches of the soil profile. Soil hunter 1 Trebish Farm, Livingston County 2 - Anderson Farm, Lapee" County 3 - Vicinity of Capitol Airport, Ingham County 4 - Schoenfeld Farm, napeer County 5 - fiorton Farm, Clinton County The soils were dried to an apparent Optimum moisture content and each soil was sieved through a 1/4 inch screen. The soil was unifornly mixed and a ten-gram samgle of each soil was dried over night at 1150 C. tocietermine the moisture content. Determinations of pH were made on duplicate sangles at the previously determined moisture percentages by the glass electrode method. Lime was added to the soil in two-ton increments resulting in soil treatments varying from S to 12 tons per acre. Each treatment was reglicated three times. in unlined treatment was included in each case. A basic treatment of 2000 pounds of 5-9-18 fertilizer and 100 pounds of c0pper sulfate per acre was added to all the treatments of the five soils. -13- The ad dition of c0p 9 er to organic soils with a pH of 6.5 or lov.e er is very imROLtant for Faxirim crOp production of a number crOps. Besides resultin5 in increased yields to many crops, it has been reycrted to improve the color and quality of onions, cazrots, lettuce and spinach (14). The soil, lime, iertilizer and c0pger sulfate were thorou5hly mixed and placed in one gallon jars. On January 19, 1951, the jars were seeded 5/4 to 1 inch deep with Erigham's Yellow Globe, a medium matU'in variety of onions. Prior to seeding, the seeds were treated with "Arasan" to prevent damage from soil borne organisms. The onions in each pot Jere thinned to four onions The soils were main ained at optimum moisture conditions by ueriodically b1715in2 the jars up to weight with distilled water. Notes were recorded and i}hOtOg; rephs taken of the plants to show the difierences that develok‘ ed. The onions were harvested on June 21, 1951. Air dry weights of the toys and bulbs were recorded. The untreated soils were chemically analyzed for the following constituents: Exchangeable calcium, mag 5nesium, potassium, sodium, man5anese and iron, and total iron, aluminum and man5J ane se. In addition the following Jroperties -13- were determined: pd, exchangeable hydrogen, total exchan5e capacity, exchan5eable cations (total bases) and per cent base saturation. The lime requirement for each soil was determined. Exchangeable and easily reducible manganese and pH were determined on the soils "fter treatment with calcium carbonate and following the harvestin5 of the onions. Total manganese determinations were made on oven- dried tissue from the tOps and the bulbs of the onions to investigate the relationship of the amount of man5anese present in the plants and the amount available to the plants at the various soil reactions obtained after limin5; and to see what effect, if any, this had on the growth and yield -14- KLTHCDS OF CHEEICAL ANALYSIS Ease Exchange Capacity5Determiiation (55) Place 5 grars of air dry soil in a 300 ml. flash and add 250 ml. of ieutre. N ammonium acetate solution. Shake at intervals from 1/2 hour to 1 hour, and then pour into a funnel fitted with a number 48 filter paper. Allow to drain; then leach with an additional 100 m1. of 0.1 N ammonium acetate. After the soil in the funnel has finished draining leach the soil slowly with 200 ml. of 10 per cent NaCl. Place the salt filtrate in a Kjeldahl flash, add 20 ml. of 2 N NaOH and distill into 50 ml. of 4 per cent boric acid solution. Titrate distillate with 0.1 N HCl using brome cresol green as the indicator. Note: After the soil has been leached with 0.1 N ammonium acetate solution, it must be washed with an in- definite amount of distilled water and 85 to 90 per cent ethyl alcohol until all the occluded ammonia has been removed. To check for absence of ammonia add 1 drOp of Nessler's reagent to 3 drOps of the leachate. Compare the color obtained against a color chart for ammonia. A very pale yellow color indicates approximately 1 par per million of ammonia present. Determi: atiozx of Total Eases (a) Extract the soil by the 5 me procedure used in the determination of the base exc‘11ance cs pacitV. Collect the filtrate and evaporate to dryness on a hot plate. Transfer the residue to a orcelain ev boretihb dish and gently ignite over a meeker burner for a few minutes and then at full red heat for 10 minutes. After cooling, add a calculated excess of 0.2 N HCl, warm the solution and rub the bottom of the dish with a rubber ooliceman. Add 5 drone of m tllyl red indicator. The solution should be red. Back titrate with 0.1 N HaCH. Calculate the milliequivalents of soil b.ses per 100 g'ams of soil. CO {Tl Per cent ese Ca ture ion From the base exchange cagacity and total has determinations the per cent base 9 t iration may be deter: lined in the following manner: e1 bases Exchan; e Capacity x 100 = per cent base saturation :5 h’ - (D Excnangeaole Liyd; cten Fro m the base exchange capacity and the total base determinations of a soil, the exchangeable hydrogen may be calcm11 ted in the following manner: Ease Exchange Cagacity - total bases = Exchaigeable hydrogen -15- The_Dete rmination of Calcium, Sodium and Potassiumgby the Flame Photome ter (35) f Preparation of Solution A Extract the soil by the same procedure used in the determination of the base exchange capacity. Collect the filtrate and evaporate nearl 3 to dryness. Pour into alCO ml. volumetric flasr. Cool, dilute to 100ml. and label as solution A. Pipette 50 ml. of solution A into a lOC ml. volumetric flask, add 10 ml. of 250 p.b.m. lithium chloride solution, and dilute to 100 ml. The solution is now ready for he determination of calcium, sodium and potassium. Calcium Warm up the flame photometer using the blue photocell for at lea st one-h alf hour grior to its use. Locate the position of the calcium line on the wave length scale with a solution containing 60 p.p.m. calcium in the form of aClB.2HgC. With the location established, reset the nac1ine for the indirect method of determin atic,r', using 85 p.p.m. lithium in the form of the chloride as the internal standard. Set the 60 p.p.m. calcium solution containii' 25 9.9.m. lithium at 100 and chec one 3 int on the curve to be sure that the machine is working saois f- actorily. A A 30 p.p.m. calcium solution should read 50 scale divisions -17- when the 60 p.p.m. calc iurJ solution is set at 100. Pour unknowns in the funnel of the flame photometer and record scale readings. 30 Cl um 5 Locate the position of the s ooium line on th wa—ve (D length scale using a solution containing 20 p.p.r. sodium in the form of sodium chloride. with the location established set the machine for the indirect method of determination using 25 p.p.m. lithium as the internal standard. Set the CO p.g.m. sou ium solution containing 25 g.p.m. lithium at 100, and c‘;1ec one ,oint on the curve. A lO-p.p.m. sodium scale divisions when the SO p.p.m. .._1 U) [.3 O f. C; '7' {.3 r4 (‘1 ‘ D solutioi sodium solution is set at 100. Pour unknowns into the C.‘ u. funnel of the flame photometer and record scale read'n: Read p.p.m. Sodium from curve. 71.. ' :o aSSium Remove the blue ghotocell from the photometer and 1 W I. alace with thx: red giot oceil. Loo; te the JOSitiOH oi the l ‘ - J. . ”x ‘ .. e 1,_.,..3..'..‘. “1A ..' ‘. “1.4.: gotas sium 111: on tie N&Vu luaubfl scale Lita a solxtion of ,_. n ’ V‘ firm a 4 '. “ A ' n 1 ,-~ (- “.fi! 4 1‘. '0. ‘ 6o o.o.m. outassium in the form oi thdSSl’U cnlOLioe. With the locatf establis hed reset the instrument for t. O ,.' 1 - ',-,“ '-,.~ -,.-. 1..“ u ‘.\4. , .. .' , - .f . . n", .. -. tile: Ahlli‘dct lbdtlou OJ. (1*; bel111£-LilC.t.LOll, \.1S.gllo (L); 1",. 3.17.. lithium in the form of the chloride as the internal standard. Set the cG—3. .p.m. potassium solution containing 23 y.f.m. -13- lithium at 10C, and check one point on the curve. A 50~p.o.m. potassium solution read a' scale divisions when the 60-p.9.m. K solution '8 set at 1C0. Pour unknowns into the funnel of the flame photometer and record scale reading GPA r) "..‘.T‘.. ‘ db.“ L . ‘5.» a“ from the standard curve. Determination of 1:;neoium (E ) (D In this method for the determination of ma tn sium, it "as found that a lO ml. aliau1ot of the samole and lO 0 0 Fa v—J (D ('l t (1' *3 o (”f P O k .1 H 0 Ft of sodium hydroxide Wi.th a 200 grams per lite r, proved best ior Lagn esium determinations on the org"ic soils used in this study. Since these soils are not garticu arly high in magnesium, a smaller a iuot than 10 ml. did not contain sufficient magnesium to get an accxrate test with Thiezol Yellow. 10 ml. of sodium hydroxide with a conceimt': ti on of 800 crane per litre was also required rather than a concentration of 100 grams oer litre in order that the required volume could be maintained and tin t the color could be developed. The procedure outlined by Drosdoff and hearpass (6) was followed with the above modifications. Weigh a 2-5 -ram sen 1e into an ignition crucible. Ignite over night at ECO to 6000 C. Add 3-5 cc. of 1.. to the ash ani boil for 1 minute. Add (D '1 about 1" ml. of 1-vate: and filter. Lash “xvi h hot not until it is free from nitrates (tcs filtrate with diphenylamine). Evaporate the filt‘ate to a volume of 10- 40 cc., them add l cc. 1305, 10 dro )5 of H3;O4 an 2-5 drogs of H530; (helos t1e color to develoo faster), and 1 cc. of periodic acid solution (30 5*ams per 130 cc. of water). neat until tle iull color devol o os, then transier to a volumetric f ask and leJ5 11 to voli (usually 1C"l cc.). Read the tor cent trancu135ion 14 a photolomece“ or )1oto- electric colorimeter, using filters 401 and 39: in combi- nation for the inotolon ter and for tne ohotoelectric co‘OIiI-ter a filter 01 too mu (millimicrvns ) wave leng th fo: color combarison. 7" . .. ‘_ .. '1 F4 if mm, C '11 _‘\“ (“a .' C l to) I r~ ,1 w- (T .. (-3 Q ,3 . . fl HJL‘J $(Al ;.-- ‘,._,, _, L--(_-'..L.}(_,_1..~., six, '4 Add 250 m1. of neutral nor mal um.oo1um acetate solution to flask contai1ning the soil. Shake frequently and filter. deturn so._l to ori inal flask for extraction with ammonium acetate-hydroquinone solution. Evagorate the filtrate to dryness and ignite over an open flame -on- Dissolve the residue in dilute H303 and determine an,1ncsc by the 16110 date met1od. Essilv- Reducible Ianganese Dioxide (34) Add 250 ml. of ne utro normal ammonium acetate solutio on containing 0.253 hydTOQUiHOflfi to flash containing soil from which e1c1a12eaol1 .nng1ese has been remove' (:11 1»- 1 111-11411: 001113;; ts of flJaarison. The color should be read within 1 hour after its develogmcnt. T tal Iron and Aluminum (26) Ignite a 2-5 gram samgle ia an ignition crucible at 500-6000 C. over night. Dissolve asn in 3-5 cc. of HHOs and dilute to a volume of 250 cc. If the extract is known to be low in phosyhorus add about 0.5 gram of (N14)2 HP04 before making the dilution. Add a few drops of thymol blue and then NH4OH until the solution just turns yellow. Run in 0.5 ml. of concentrated HO and follow with 25 m . of 25; ammonium acetate solution and stir. Let stard at room temgerature until precipitate settles (about 1 hour). Filter and wash 10 times :itb not 05 solution. Ignite and weigh as iron and aluminum phOSphate. QC“- Pipette a 50 ml. aliquot from the original 25' ml. into a 200 ml. beaker and evaporate to a volume of approxi- mately 20 ml. Oxidize the ir n by adding KLn04 (l +' 1030 until a very faint permanganate color persists. Add 5 ml. of 10 per cent 334CK3 solution and titrate With dilute iClg solution to dis a )pe rance of red color. This Will “ ive the amount of iron present. Convert this amount of iron to FeP04 and subtract it from the total amount of FePOl and AlP04 obtained on ibnition, precipitation and wei nin;; this will give the amount of anO4 present. both iron and aluminum phos ate C‘q be converted to per cent iron and aluminum by Specified factors. Edge Requirement Determination (41) A buffered solution of the following composition was P prepared: are nitrophenol, 8 grams; calcium acetate 40 grams; and sodium hydroxide, 1.2 g'ams. The mixture .as made up to 1 liter With distilled water. The pd of the resulting solution was then adjusted to 7 at 250 C. With a few drogs of dilute 301 or pellets of NaOH as required. T‘JEWIt’ cubic centimeter of the buffered solution U) to a measured 2 gra. a were adde :3 samgle of 40 me sh air- dried soil in a 50 cc. g ass beaker. The mix ure was shaken gently and let stand 30 minutes prior to reading th: pH with a glass electrod ‘lq{llllil I! -23- Organic latter and Total Ash A 5 gram sample of soil is weighed into a weighed flat bottomed dish of about 40 cc. capacity (platinum or fused silica) which has previously been ignited. The dish With sample is then placed in an electric muffle furnace and slowly ignited at 500 to 6000 C. over night. Allow to cool in a desiccator and Weigh. The loss in weight is due to the loss of volatile constituents, which in peat and muck analysis is taken as the content of organic matter. Calculate the percentage of organic matter and total ash in the sample correcting for moisture content in ese the sample taken was not water-free. -24- EXPERIMEnTAL assJLrs Table 1. Some chemical characteristics of five acid organic soils used in the investigation. Lillieguivalents Aper l00 grams of air dry soil Total Per cent Exchangeable exchange Exchangeable base Soil 4pH hydrogen capacity cations saturatign 65.2 81.78 l6.6 20.5 6 2 5.7 62.5 50.4? 17.9 22.5 C) H'x O O 03 C gs 0) a .Q P D C) I 3 0‘: (>1 JJNO "s. 4s . ()1 his .0 O) 4 H5 0 h“ C 3 (fl ()3 . U1 ()1 O O '..J m 0 (0 q n H 0 01 ( J” 0'! Co 0 «1 03 0') E C) O As shown by the data in Table l, the five acid organic soils differed quite widely in the content of exchangeable hydrogen. Each soil was found to possess a high absorptive ca- pacity for cations and contained a large amount of replace- able bases. (D J r ‘1 [—1 U) c1. (7" (D cf 5 (D :3 L. A positive relationship was found to milligramequivalents of bases ar‘ per cent base saturation. An inverse correlation existed between the pH of the soils and the milligramequivalents of ex hangeable hydrogen. As indicated in Tables 1 and 2 percentage base saturation was found to be closely related to the calcium content of the soils. KO relationsnio between on and total exchanne capacity was noted. Taole 2. '"cha ngeab ble cations and organic matter and ash contents of five acid organic soils. Per cent LZilli e uivalents Organic ner lOO grave of air dry soil Soil matter Ash ._§a;w Lg K Ea kn Fe .015 ()1 I.) O 4:. O F) _) (O 1 91.0 9.0 15.6 F4 +4 I‘D 95.2 6.6 14.5 (‘0 1.2 .804 .010 1 I”) o 5 o 0C5 o 017 LO 0 O O O (>1 vb h'> 90.9 9.1 15.4 91.6 8.4 25.9 »> ()1 ()1 (‘3 (‘0 C) I,_J OJ ( F J FJ N (O O O‘- [-4 ()1 87.6 12.4 44.9 For each of the five soils calcium was found to be the predominant exchangeable cation. In general, tne cations appeared in the following order of decreasing magnitude --- calcium, ma,nesium, sodium, potassium, iron and manganese. T-e organic matter content varied from 95.2 oer cent in soil number 2 to 67.6 per cent in soil number 5 and the ash contents of these two soils were 6.8 per cent and 12.4 per cent restectively. As shown in Table 2, soil nimber 5 contained the larzest amount of excnrn eable cations. t. I {0 O) I cent total iron, alu::ninun and manganese in five orjsiiic soils under invest gati on. 1 0.22 0.52 .0056 2 L.16 0.26 .0025 E) .DO44 L 5 .43 4.70 .0115 UT As indica 'ed in Table 3, the order of magnitude in which the above three elements occurred in the soils was aluminum, iron and hen anese. The percentages of the id not vary to any marked degree between (L three ei-ma1ts so-1s, with the excegtion 0 soil nunber 5 which contained the largest alcunts of all three of the elements, and was particularly hi;h in aluminum. Table 4. Line re dllemlft of th soils as detern ined by doodrtff's m m . .- , - 101.13 AOL-‘1‘ 2 21C ‘0." e: il l s 4 5 Lime requirement 15.1 15.1 12.5 11.2 7.5 ”-0..- .VC: 5 run ‘ . - r —’ uoOo,ooC ; M‘UIGS per acre basis. lime re uiremert is defined as the anount of line rerqu-a to brira the soil to DB 7. u L7 in yfl e Dunne" me C‘ v ‘I the on t 4 C I,» 01 C ditfou; (‘1 C. 0... C3 5.) in 5 Soil -——— .3 an. 1-. a. P1 1 r, btfiili;rc_1 Cecreo 0011 L.- ’ ‘4‘ (‘1 t: r (I L'- 7‘ 1‘- 1-: r: c: 1: L4.) \ \ I r 1 to 5.0 3H 9t C..~ 7 _.A v.3 c- .f 1 uO.;__L n7_ tiere be 'cium.c i); a. Li ‘4- toil num Soil 1 C L ‘q—w hug-v“ ~~h~~~n~ i; .ct c etion '5). E“ effe i I... F" 19 d- - V- lJLA d. reguirerent of the fi (715 .. ‘1 ‘0 o '5.) .I "\ J 1\ R; b n kn- . 1 fin»; qs . . ,Aeal enea. O O are 0.1 O O .4Ae 66 O 0 move J O A '7 \J fifinp O O O FDR05 ab arias 6 4.9 4.7 ainafiu A. 50.]. Du gen QC- 4.7 (W n;0k Bro 0» ab 00 - r3 RV 4D,»; 7 O O O rOQCG 676 o o o 666 RCA:Q F066 flvo O O 6n0 6.1 1:9 a 0 r3 A. CC inkZu ngnU on. 667 Olbno C O O 7.7;b OAQQU 0 O 0 7Lan 110n0 o o 0 7.7.0 FW C) L. VOL- n 0 av Q C; u. 1:1 n/N "nu 7* nv1:U O O O 7m(7. Geog)». o o o 7H17u ”Onflflu 0 10 L) 7:1 omit tween the F V b“ d. ‘1, I .. *Cted .1- 4L-L L! on e d- O .. correlat of line TailliTEG to raise tz1e soil ph to 7, es calculated 1y Noodruff's lime requirer 1t nethod, eNd that Obtained by actual liming. A negative COTTEthiUn ex1sted for 801 s 1 and 5. Hit} the ex tiC n of coil Limber 1, all the sails were raised to pi 7 with the edcition of 10 to 1: ans of lime per cre. It is evld3nt from data grese1ted in T able 5 that soil number 1 had a greater buffer capacity than the other soils. It has l‘een st ated (; 7) that the buffer caeacity is closely related to soil reeetion are to both ash and calcium content. Table 6. The man anese s et‘s of the five organic soils under in es tigetion. Perts_per million Eas ' v Inert LXCnUn.1able reducible manganese Total Soil 05 mena: nese r nge1ese oxides ha,;1;ese l 5.6 25. 13.5 18.7 56.5 E; 3.7 505’ 307 ].'70(-DJ 25.0 5 4.0 5.7 2.5 20.5 26.5 4: 4:05 8‘07 A005 Ji‘.8 44.00 5 5.0 15.0 8.7 85.8 1 2.5 Tne manganons—me soils is shown in the a 11; b enic ecuiliorium oi the live or janic ove table. The exchangeabl va1ied c01111e~sL1v in the five soils. Tnis was due to 00th the difference in the amounts of total 11n1a 1es e th¢t each soil 1ossessed and also to t1e difie1e1ce in soil reactions. 1ne nigh pi values fa ored the oxidation of the available manganese to the unava'lzole manganic form. The amount of ea-i y reducible EC;1CCJCSB for each of the five 01,1ric soils was relatively small, but was hi,nes t in soil nur eis 1 and 5 wnicn also contained the largest anounts of total man; an3se. There was a 1elative1y small axlount of man \ganese fixed as ine't Mnoa in soil number 1 due to its intensely P. . - ‘ "va 'V— ‘ TX wr' I;— ~ .. ' - -. ixtrr "n aCid cna1acter. nonever, tne 1x;n (nese 1 tion has consicera 13 are; te1 for soil numbers 5, 4 and 5. 0.0a NA 0.3.. 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 020 .70 0.0 0.0 0H u 04 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 3.0 0a 0.0.0 0.. 0.0 0.0 0.0% 04 .04 0.0 0.4.. 0.0 0.0 0.0 0.0 0.0 0.0 0 0.0a 0.0 0.0 0.0. 0.0 0.0 0.0. .04 0.0 0.0a. 0.0 .70 0.0 0.0 man 0 0.00. 0.4 0.0 0.0. 0.0 0.4 0.0 0.0 0.0 0.0a 0.0 0.0 0.0 3.0 0:... w _ m 0.00 020 0.3 0.0 0.0 0.0a 0.0 0.0 0.0 0.0a 0.0 0.0 030 02¢ sz 0. . 0.0 030 0.0 0.0 0.0% 0.0a 0.0 0.0 0.0 0.00 03w «.0 H32 0.0 0.0 0 0 w n m a 0 w n m H 0 w n m a mmum nmm amass: 1.8m 900:3: flow .3385: 300 00000 mmmqmdc Ha 03350091 mmmfiadga 1 3mm 989 mdflmsmmO. 05.0.0 manmmmcdaommfi .8470 .3060 3530 0.3m. 033 Sq @093ng 03.35009 admmm 0.0.0 manwmqucoxm 23 do 3320930 530de :8 .1600er 95 .0 magma r.‘ - '.I_/‘ 1 - 1.. -\ -: .. . n-.. A +‘ ‘1 -j- M , .1 . 4 J. v. ,. 1 « T110 -LlJ.-]-\1C'.LiCU OJ. 08.4.8.0;12. CClUQl;0te Ckl'u.Lt--Ofl 0.. tilt: A- .1 , ' - .. 1 - ~. - . .- , - ,. . .- b‘ ’-\,11C..Jir:,vb. “gt; 3.10 $88.14? .L'eLlJCll.l€ L. 0.1 Cir C: — E ' 131.15 4.5 ' 1 .7 ‘ , . _ _ .2 K {'1’1‘ \. 0110‘s.; 111 131163 b LC O :J. LSLthOd .LJl J. L 3 7o soils wi n Lgcrecsig: cal cium ca ~01sce any ications and - A . r 1 . ”q .‘ .‘ ”fl 1' A» '~.~ pd. It n33 been ragortea klé) taut ncatLa; an“ almaLlue r the fOLT£1t mLil of 0,“;aglc REJTTQHGSG wnlie w 0 O 3 r—-’ c. Ur.) C—f- b y-s 71 H: {‘1 <: O n 1:; .‘ '. 0 t .‘ r3 - , .1." r. ~_.‘v . 4- : '. 4:) “fl _ A.“ "_ ‘__‘ ‘ .. .{K .' 2.2,. . ac;u CaulltNOflS lever cue IOLkaiqfl 0; at; augus Lagsauese. been converted t; the un V'EilL ble mcnrsnic mgnyagese with ‘t' 'v ’-0' .~"-‘“. 4', ‘..“'r‘ f'\3 f —-\ /\" $A0200S€d agu+LCunt oi active 3.0 Qfieie exch sable emf ea siljr T€d11Cjbl” X102) available for fleet 11: e. A jositive reletiahshig between the total soil is1genese of the 5 ccid organic soils and e33ee0‘eetle manganese is sec 2 in fiyure l. The 9.9.m. cf exchangeeele men enese iUC“€”S€d with increasinf gercenteges of total mgr; ease. Altha i 1 soil nu1.1LeI 5 possessed the higlest percentage of totsl HLHQCKLSG it till COHtClJJd less excleigeeble ecu CQLUG then soil number 1 which bed less total 111.-.: came. “221i: coed on nightbe coasidered due 7—4 to wlDllS 1:131; 01,1: { SK; "I illCl-ilk, ed .0.00p 00He0n00>0 Q0 :0 QOHaHHa 900 00000 :H 000009000 0000 + .000200003 0S0 55:05:00.:000 00900 90% 00NhH0Q0 0500HH¢$ .0 000-00 00 00:00 00 000 00H00$ 00 00 0.0 0 0H 0.0 0 0H H.p 0 00 0.0 00 we 0.0 0a 00 00 0.0 0 0H 0.0 0 ma 0.0 we 00 0.» 00 «m 0.0 0H 00 00 0.0 s 00 0.0 0 00 0.0 0 00 0.0 00 000 0.0 0 - an 0.0 0 0H H.0 m an 0.0 ma 00 0.0 00 000 0.0 0 ma 00 0.0 0H an 0.0 00 H0 0.0 00 0r0 0.0 00 000 0.0 e 00 00a 0.0 00 mod 0.0 an 00 0.0 00 000 0.0 00H mmaa H.e 0 00 000 0. 00 00a 0.0 00 00a H.0 - - 0.0 $3 $0 0.0 o 0000010000100, 00050 000» 00 000:0 0000 00. 004:0 0000 00. mpasn mmop ma 0000 000 0 Afiom 0 H000 0 aflom 0 H000 ,: a H000 00000 0Qoy 910390099 0.020000 0:0 00 02HSQ 0:0 000p 0gp QH.+ 000200203 H0000 00p 00 00000 oflqwmno 0000 on 0000000 000:09900 SSHOHJO 00 000090 000 .0 00008 fill! {ctf I -33a- GHQ. ‘ -Iu' 0».- ~— JNJJ.‘ ’1.“ £0Lpfl< r «Er AHow mma EH 0242 an mmmz1J‘lill .L-0 *éAUJ—b kl, t’JLI-J‘ LJCPOLAIO OI. L1_~1.‘-‘~l‘..1‘.\--\-C uC/LL‘L\-»L_ La . ‘ \ 1 \ . 0‘ ‘ '- ‘ A‘ "\ 1“."- fi‘ "". 4" '- 1 ‘l‘ . '7 ' - '1 . ' ‘0 -_I ",A. '.— lJIIAYUL t1: tops 00x1 t00 000Ls .0101 00000050“; CLMAXUNJ 00.Lou h) \ l n " a ‘. l‘L-E “ 0' .' .. ’ " ‘4. ' 1" ’f‘ w ""-"_0 “" V! V“ 4 N — db'g L..:.'.~' --l-LCQL-_O.LAS QLICL LJtlo [av t;l§., .LO “Ci 1.14.3. VK—\J_\1(.’S , “I. (J r" " "‘.~- ‘~ 9? “'1 ‘4' .~ ‘1: -‘.\ '~ .17 v- "-1_ P J“ . C at 4“ ‘ 6.1,;JIL‘-3--Z-L1.;L ”Cc-l; 10 ._1.. n” tLlK“. 11.“, :1:-.L‘ 1-1 ‘ 01.11;...) L 1.10 J. 0 0.1.0 “0.5 1 '~ ‘ ' 1 ' -' -' h' . ‘1 ‘1. ‘ . ’. - ‘0'. n ‘0 ‘.. ‘1 “'WC t' .‘3.’\'." “"'tT\—!V7 C kj-Lii j.tk (El-1L. L-Javr S A. 3“.._ ~;~ :- . " IA—tl i/‘l '7 . \—I t . .L(E" 1- L—t -—|) " QL u! L_*—) ijl ‘jJ'ILlI’£(./ (HI—Lu. (\ ‘1 4". fix". -‘- w ‘r‘ . j. - 9" "i’N "‘3 . " .‘ C‘ )1 '7 A h' ‘ ‘2‘ T- '1 " Y r- 04. .1. L-J. 14:33)}. ‘Q 1+»..44‘tu‘3 frivavJ—éLL-J 01.]. (Jul 5 xi, ‘2: 1.0.3“). V. 4.41 ‘V'CjiKI o ‘ V 1 4- ‘- j ‘ ' ."‘ 5 I‘ " I ’ ‘ . ‘ 0050 t 0, 00000 ‘0”; 00\:.: as LLexus ILl'tln 1003 43 0. £10 4.. Lqit " ‘ J I ¢‘ . J»- 1 4 -. m 'L C 0 \ V. n C\! ;P1soa 00 0:14..0- Lngss 0130K1r $10us £1 . .. ' .0 ,. .4- ' ...._ ‘ v “ ,\ ~.-—~._ A .3‘-‘ ' ... POS0t1V0 rel: 1.05013 00t. en tH1 tot;l man 00030 1” t '. l H. ‘L‘ ‘ ' " ¢‘ l‘ > ,-~ ~. . ‘ 1‘. -\ ~ - ' ‘ u - . v ~- SQLlS and L;l‘.:‘ tObgm "33-11 gilt-SC 1J1 til"; “1' Qt t-LSSUJ;. .1 ybfiit-LV‘J .L r‘ '7 ‘_ . ,_ v. ‘ ‘ ‘ ' '_ . . ‘ -. - ,- . —J— ~..,\ ,\ - ‘ -<_ 7r 1 g ‘ ' “ l ". ‘v‘ ~ r000t_mu&1lg lS alas eVde 0 LEDdQUQ tflp endluh,0;L7; L0-_0- mesa 1p tn: soil and thc totgl Lam 005$; 11 t10 r000: tLSSJL, as sn.o,n1:u1'fatles 6 adult: (Fig. 2 . £8 51000 LA T0010 6, soil number 5 was Aighcst in t :el.1:un;;;pxa;. lxdug'siy 'the ;:1io;-s'ha1- gstexLLEronlsx Ll (E: -. .‘ . 1....-. .' ‘~ ‘. . +- .‘ __- .___1. .9 ;-_.'1 -.‘. _ '.. 11‘113001'1, 1". ..LC 1 CL)*L-.)0.L;1€:;-¢ 110.1). Dix: 000011.10 OJ. LCD-00.1“- Lu-.01,_.gl,11.,€ D ‘ ‘. I 2 ‘ r 4 “' “- J I“ In ‘ r ,- 1— .'\ n * a 4' ' \ ‘ 1014xi.01 8001 100.c~: -, :00d tuL 10:5.00st 1 KAmeyne oi no .’ r " F) ." . “ 1- “ .\ r ,’\ ‘~ ‘I l W. - ‘o 1 /‘. 9‘. ‘ ' ‘. “ W n‘ , 4‘ r—j‘ \ . 10000.01m: s 111 (Hat 1 tm1,s. .001 1.11JJS a: t11: LJIKLC; #0000105. .0115 ' 40 “‘ -. - A, ' , . L. \ , Tb - 1K, 3 ' {I430 ,. 0.. .. .'- 1.. ' . , ‘ - ‘ . d1010r0400 1: aCCOdand 103 Ly tae d100000uce lfl {A 01 fine *3 (D i...) t‘- (1* H. In H F’- ;--. M N) L. ’7 g; H ( )— r—J " 4 L“ (3‘ [,4 (T U) (‘3 (- I. ,J ,2; ( ) o -‘lll'l‘ anese in tne plant tissue from soil nunier 3 whicd contained less total and exchange- sble monienese than soil number 4, is attributeb-e to a possible antagonistic effect of calcium since soil number 4 1 '1 r . -' - ‘ r “21, "v: ‘. zw rxmx. 9 ‘ "3 ‘f r” -' \r‘, . " r“! f‘a".‘ " conteileo neoiiy twi e tne anoint Oi elcnunpceole eloiim. mL‘lc 0. 'he effect of calcium cerbonete on the content of total iron, aluminum, and mugsnes in the elent tissue from soil number 1. Grams Tons of 83003 Per cent Yield of oei_§cre LA :e Al Mn onion bulbs “—5 O 3.6 .17 B.‘ .04 0.33 2 4.1 .03 0.5 .12 l45.“0 As shown from the data contained in Table 9, aluminum C‘ a.) W (D present in the plent tissue in the largest amount both before eni after the eddition of calcium carbonate. however, \ the yercentege or aluminum decreased considerably in th— ent tissue as did the iron, after the calcium carbonate ‘ I- f '4 "‘ 1',“ _ ‘ o r“ "1- \ )\. ‘ - r'r ~. . ‘ .\ - r. \.’-~1‘|— - ,- ‘. y-rx ,' -, Hail L583 ov.\leC‘L , Cull JL'SI‘SCly, HOV-'C‘stl , til“; 5):]: Cbiib main; CAUZSG .1. -ncreesed in the olsnt tis m 1"; ’ v. The yield of onion bulbs increased as the gercenteQe iron sue aluminum cecreesed in the Plant tissue with )1 increasec cel;ium carboncte an , r .1 t fed-0 / - )x , . n. . - . .4 .280 5” 000C0HHH8§ 00000;.00000? M0 5.0.0 r er m. ma OH m —.1-——_..—. fl .000 00¢ 000 Dom HH00 - HH00 - .303 .. HHCQ ... HHOC I OOOH Hcenduo HC’JL")H% so m:CproHHmmw mmeOQku Ezfioamo Ho pom0km may .OH magwa II ‘III .[ [lll‘i‘ll l' A?_ K (I ;> Q) ry4 > {L‘ rha pg pamoHMHquHa; wk sfl 0 ) ma pa pamOH@Hcmfin;m .xmm.¢ ‘amm.n amm.vm *xv.¢® x$ao.mm pduapmmaa mdofl no -Hammm Hmpoa m w m m a Hommmmm moqwflpm> Aflom aflon HHJQ aflom HHom mmmamma Mo mopfiom m .A 63:5. 38 UV .3” mafia H.nom m.mwun m.®(m o.nmm ©.mpa mmmn ompp orwm mmrm Foam m mogpm m.moawa mowed armm gamma mammw mmamm nuam. o pzmgpwmua mzofipwo m mma mag m -fiammm m.mmna are“ m.wdrb m.©mm mw m.w¢ma m.mo m.mom MHHH om mmm onHmH mdwam moomw mmmom Jomwo ON prOB m w n m H m ¢ 9 m A Eodmmgh modwflamb HHOQ Hfion HHow HHOQ Hflom HHOQ Hwom Aflom Hwou Aflon mumh»cm Mo ®OAZOM - maydxmrm damn“ umaqmm m ho «LMH ‘ \- .wnadn QQHCO ho muwu vamfim %o moamflmgb mo mflm>awn4 .HH magma w.om 0.9m Hv>ma mm Lx) CK} I I CO LO 0 \D r”) m.»@ mem Hm>ma x .Q .m CH .N N.© 0.0 0.0 0.0 0.0 0.0 @0H M¢H or PM ova NH L0 0.0- N.H m. . - m.a p.m m.m >.m 0.“ 0.0 0.0 0.0 0.0 mpfi Hod moa ad and OH mm 0.0m u.m v.0 u.m m.ua m.a m.H 0.0 m. o.m owa pad Hma moa mod m .2 06 fig mtg, 9m in mum w. mzm 0.3 OS mow a? d; #3. o u.w m.m o.m m.H p.m p.m >.m o.m mm m a mam mud mw « b C) t— O . LO a m cc 0 H O h") t0 L0 0 H m.m m.m m.© b.MH m.© O.m .w m.bH Owd ham How mud mwfi Cl p.m m.m m.m p.m m.ma o.ma v.m p.n m.m o.mm mom m m o@a ma.o mm.o o H m w m m H Hfloa m ¢ m m H Hwom m w m m a Mom mgmw Amp mmmfimtfiwa mflpfloswmpll mmmgwq1me mapmmwfiHCUKm poa‘qulmemm Koono ma-mmm .E.m.m .a.m.% udamflk dwmm Mo mace .mHHom mgp CH mmewmcmE mapfioscma mafimmm flaw mapw nwnzwgoxm map :0 Uqw .mpasp doflao we mawflm mgp do mmsondmmmm map :H . .«30. w ) in- mam undo moo fidao4¢o o s x. . wagon owd.zao 6H0 q>flw op (QHH m+ Q . r % +omkhm qu .md magma As shown fro om -ables l0 aid l? a 81 gni1‘i.c alce has tmxnl Obteioed numbers 1, 2 aAd 5 and significsnce at the point for soil numbers 4 H F.) r-‘J 0 The yield of onio 11 shown in Table 12. The yield of Innfiber l was ciam carbonate the yield of lie Vield of onion bulbs co 8 Were iHlC eased With calcium carbonate 2 tons respectively. The exchangeable nan decreased in these soils uit1 increase e6 carbonate. 1 Tne p.p.m. soils at mciimum Vielos for soils l, 2, 3, 4 and 5 respectively. It is shown from these data thst soil numtexs l, Siznxi.3 were obtsiued of excnsnje dble msnjcnese was orcsent U) L] (‘3 CM .3 {a H F: 1... «"1 x C wr'fi’r VilmLKlnzsl 5:; .. . 4.x“ . ‘ ..- .. —‘.- resfiectively. as tut :4 incressed to 4.0 hi; between trectmei the onion bulbs iacxacsed'with the addition of calcium: treatment. oil numbers 2, meximum when 5.0 to 3.7 in the soil. nmeels agu 1 ‘ .n"‘ 9 its c: soil 5 per cent pwlicstion is On 5011 carbouete Additional onion bulbs. The shown to decrease With 5 end 4 afidd tions 0: :2", 4 and . "'r‘l " 'r :,'lt:-.MJS 0A1 9.9.1u qjllEE $1-1 -40- numbers 4 CD " “ :7 2 ,, . . S-s . ‘ . ', “‘ 'I~ .” ‘2 (‘1 J'lu \—' tl’l~:: 1‘). t). 11.1. ‘31 EALCKILLJ-» x: a;ltj 1.1x-«.‘1 90‘461 S 'J C‘s-L S O I ‘ ~f -. > o a 1‘ . . I“ ‘ ' ... .— '~ 'u I ,-, ’n‘ l ‘ ’7‘ ‘ '.; ,' ~ ‘ ' increased snu nex1mum yielcs Wale olccinec st o.c gnu .c.o P.y.m. of exc h n13 ole man snese. t is eviuent from tasse '-I I‘- 7 1' .. J— “ . _ “ " -2 A: ‘h‘ . > J. 1“: ‘ I; 71‘ J . ngh tdeb an1Lun yielus on 50115 01 an lLbzuSVlJ cc1d Ht mange- (in: ncse than soils "ith 3i values less ficid in reaction. From these fists 4 to E o.p.m. of e"cn:1. able H‘l;6;€59 appeared optimum in intensely ecid soils to give maximum yields; and 6 to ll 3.3.m. o: excnen Wes Optimum if stron3ly eciu GelditLo (o1 4.6 - 5.1) to give WWVimum yie lds. i Oures 4 to 8 show the effect of increLSed calcium carbonate addition on the onions of the five soils during their Ferioc of growth. A different growth curve has obtaine d for cecn soil. Jith the excegticn or soil hunter 5, all the soils resoundec to tne suciticn of calcium carbonate. These growth curves are reflected in fig‘re 3 showing the relation between the yield cf onion bulbs 13d hi. The bulbs decree 53d in size With increased calcium carbonste addition after the Optimum smoxnt of calcium had i) been reached. As shown in Ii 3u1e b th3 highest fielcs w~' (...! '-< ('= F! (73 1.x -- ‘ "“ r‘. 3 1-.1|'\J- ~ , A ‘ -'\ ‘r it " r‘ 'q'- " ) ‘ fl .‘ ’-‘ r r . ' obtaincu between tne 9n rcnge of 4.; to 5.3. lion TabJC -: -' , w .4- 1 -. -, ~ -- 1.. -, -. it is seen tnet e nclrcc decrease in tic p.y.i. 0: var, ncsc .../fil— in the onion LulLS occurred as the soil 9; e,oroocl ed neutrality and a deiinite manna :zso deficiency re lted. This was o‘sch:d in th: scrly stsges c IOWth. The igs c“ ‘hL blents ‘evclcccd s ligd yu‘lon c0101, liter ‘ied anc in sore cases fell off. As snotn in Ts‘le 8 the onion slants tint "cceived the 6, 8, lO and 2 ton calci- carbonate tVestmen 8 contained verv ttle pg“ . nes> -11. tl'lcl‘ bulbs. The smell “mounts 01 1:: n, nese in the cmon bulbs ed the smegtons that occurred dm 1:: thevr early and late stages of growth indicated tth c deficiency of vehicles. was a. colxt Lutin- factor towards the low yields obtain ed from the he evier limed t1 ectrmno. . Tehle lb. The oftimum pH values 3 ngch the hi3hest yields wecL obtain 3d fror the 5 cr3Lnic srils and the .31”... of man: 3a.11-3se contsine" in the fi . Tons of require CA. .37 , ' .. oL1l ufl reactio; of total ese in bulbs p.p.m. Thy)”: “ v‘ ‘.’1 ilkybApk. .1- 0 01" J (‘11 o-. l 5.0 8 38 2 4.23 8 53 5 5.5 4 25 4 5.0 2 89 5 4.9 0 50 2“There W35 little differe.nce in yield bet esn the 2 ton and 4 ton calcitm Cerboncte tre stmcnts. 41n- Fig. S-RELATIONSHIP BETWEEN YIELD OF ONION BULBS AND pH ____. 3011 1 _4,¢. Soil 2 ______ _n“ —*—a.— £3011 s * ;;\\.\ f 4“" 58.3% \/ Ni: 4 // ‘1 / .3 /C)/ /’/’Ahfi\\_ f . \ ”‘x f \ / f” V j }/ 225 175‘ (71 131.3 :4 U ....a E? Bubsin ‘.4‘ ‘~ ' in. (.2113. 03‘. H 8 1eld 1’ u {‘0 ()1 Soil 1. 1 , 2 . ngi’tg'l". ‘J. \. ’- -‘C; Fig. 4 - The affect of 11m, OJ tn; -rv.t: of enicns of soil numler l (pd 3.6). fl - "0 line; 1 - z toys 23- 4 tois;l5-€3tW¢s; 4- tons; 5- (Etonc; . . c Soil 2. Fig. 0" ‘45 ately 6 01110115 aiipI'Oxlx‘r: glfifitLug. mdnths after 0:1 tlh: QLTTVtI; 01 3.7) O - 10 lip: 4 - 8 tu- fi'h b,_ I419. eff 2:01: 1 SQiJ-1TuILe.r P - 4 tOnf; d - C tons; " 1:3 1.30113 0 ii In ( ’ f. C c. N'1" u C3 TY) 0? .' “V _' A ' ‘ (‘ ‘ ‘ . J .5. H . . . '._ f v. 47 . ‘ ~ -_ Q ¢. v'A‘ VU,L.M 1 .L 4‘-.. J.,_.- k: ~2..I.J. - ..L .I--.. [LIL/e V’J. J- J. . .I —. 3.. .. illCLJL-t l1“.-. \— ms 11) _ +1 ,\ Ir\ fx‘ - IIe e: :01". 1-4. G g! " “ n I q. I ‘ \ ‘ :J )(,).~t.l OJ. J11~L3AJS CI .: .. ”1,-— , ‘ A G-L - 117.13.436.13 v (:3'.‘ LEGO). C‘» - no liI,'_s.-;; - tone; “.5 — 6 tons; 4 - 3 tons; LI - 10 t tons. ‘7‘ 0‘} 6 - H J3 (T Cl t‘sI-z': -_‘I'O‘..'t':1 of on'ons R C; ,» ’ ° \ 4w). 0 - I10 1.11%; l - tons; 4- - ‘c'. tons; £3 - lO «b CO (I) I Grcmth of onions l4 weeks after 6 ate 0: glanting. gfEgg255EIIIIII-IIIIIIIIIIIIIIIEUII! . ' - “-3 ".‘rvn ‘ "17 ‘s ‘A'\ - "- ‘ N- ‘VI *— f . 011:.01'15 'cxr‘yi'OJ-J.I2L,LD_LJ? L III\)JIt..lS (LIT/€51. Lube Of planting. The effect of lime on the growth of o _ soil Dumbe“ E (93 5.0). O - no lime; l - 2 tan 2 - 4 tone; .5) - 6- 1301-5; 4- - 8 13015 5 ’ 6 - 1; 130115. ~466- Sefiowwo wpqm~a>flnymflfiafix 3M (- 0a -III. n l m afiom o e aaom w w..;- n afloa n m Afloo a a a Aflom magma my ”40 age >Hmvmwuww. ...:u 3 1,1. «3 5L? ‘1 3 NM a .m 2225 - m .mmm on OOH 00m 9 uquo JO pTeTL ‘ O. qu .5 smng u: -47- DIS CUL IL'C‘I! The exieri.cntal results I:Ies ented have shown that y the go cle factors affecting the resgcnse of different acid 01 chic soils to life agglication are numerous. Tlie lime re lilcmcyt as detecrine d bv noodru f's method (il) agreed closely with the actual an; unt of (7‘ L .1 .J T C; f H calcium carbonate reguired to raisw V of soils 2, 5 and 4 to 7.0, but failed to correlate with soils 1 and 5. This lack oi rel; tich.ii was possih v due to the greater buffer cagacities of these tw soils if the amount of calcium carbonate that is required to bring the soils to any hiuher pH value may be used as a measure of buffer caiacity. High acidity and a low content of bases are associated with high buffer capacities as measured with The per cent base satu'ation and total exchange capacity are ye PhEvS better criteria tIan pH for estimating .Cl leS d. lime needs on organic soils. The base exchan-e c;o -. I C} .L m m of the five organic soils used in this study did not vary 1 to any nthto de .gree and thus it Ias possible to make m good com;arison in their lime requirements. The importance of Optimum base saturation was shown by the yields obtained on the unlimed treatments of the five organic soils. -45- Percentage base satu r~tiozI v.35 found to be closely related to the calcium ccnte nt of the soils and it has found (Ii5. 9) that tl'Ie yield obtained on the unlined treatments were a function of th— millia1uivalents of e“ hangeatle calcium present. The yields inCIea sed with iIcreas ed amounts of L"c1 n‘eaole calcium up to the point yields. It where additional calcium inhibited increased .e 1usnt:3ties t 's—I has been pointed out (E) that cougaratively la r of calcium are essential to glant 5rowths IId hat normal absorption of other ions degended on a certain minimal quantity of calcium ions. However, from the results ob- tained in this study and from the work of others (9, ll, 17,18, 50) the addition of excessive amounts of calcium to the soil have r.s ulted in decreased availabilities of many micro-nutrient eleme rts esgecial y manganese and iron. The man aIIese status of the five organic soils was found to vary considerably as show by t'le data Presented in Table 6. There was relatively small amounts of man5anese fixed as inert oxides in soil l, due to its intensely acid character. However, the fi} z:tion of manhaIese :as consider- ably hi5her for soils 4 and E. Inis resulted from a decrease in acidity which favored the oxidation to the manganic form. The amount of easily Ieduciole mazganese was relativelv small in all soils but was hi5hest in soils l and 5 which also contained the lar5est amounts of total manganese. 9- L5!) The large” ¢:1oum1t of exchangeable and easilv reducible m;njanese in soils 1 and S accounted for the greater gusntities of total manganese contained in the onion tissue herv sted from these so: Lls. (D Sherwen (14) has stated that in any alkaline soil at least 5 p.p.m. of exchen3eeble Tdn11ncse 1n1st be gresent for satisfactory crop prod ducticn and in order to maintain edemiu te level of the exchangeable fraction this mus t 7 ‘1 ....- O” (D supglemented by et lee st 100 p.p.m. of e esily reducible ‘snese. In acid soils, however, the Optimum level of eXCQofl”UCLlG me_n; enese can be much lower, with the amount degending on the egree of acidity. From the data presented in Table 6 it was shown that the total n n33. 1es e for ev;rv soil with the exception of soil 5 to be les (0 then 100 p.p.m. and much of this was In res u1t in the inert form. No manganese def cfi.er1cy existed in the olent tissue, however, Where no calcium carbonste was egpliel. It agpeers, therefore, that suiii cient meng3 enes e was available to the plant clthl’l t1ere mes a small amount of ees ilv leducible menlu1cse in the soil. nith centinued croggiug, however, [I ‘1 I r .1. "0 ~ ‘. -"_‘ \ ‘1' ’~‘ ‘ ‘, ‘ fl ,‘1' “1‘. a“ j 'K " " 9"". this smull 1es ive CL Leh3snese wodlu GVbAtUQlly LCCUmb (I) depleted and additional nsn3enese w uld be required, usually epglied to the soil as manganese sulfate. -50- The exc1unueeole m n Cncse decree ed in tie five organic soils with increCsed calcium carbonate a3.1pli CCt ions and pH. In cert, the excheniesble nCnfiCnese was depe1de nt upon the tonal manganese in the soil, as showu in Ei3. 1. This Iel ti311° hip, however, was associated wjth the pH of geuble the soil. At low pd values the quantity of exchen men3Cnese was a function f he totCl soil mengenese and increased “'o1ort10uCt lv with tl1e increz se in total 8 il manganese. at higher pd values, however, th:r was less exchsn3eeble an3Cngse gresent in soil number t even though it cortsined the lCrgest pe“centC3e of total nun3u1ese. High pd values favor the formation of the unavailable 0" r-r~ . (t-“V-r"fl "= y‘ .. P~ r- 4” .fl‘rq'; J "r f‘\ 1: o,'l',“"., men onic Muhrafluub Wdllc Cold ConditiOHs ever the f01nution In of the availele monfenous form. It has been stated (to) I. that the differe 1ce in ("cvwgeeble 111C1113Cu1esle - s due to the r. V —~ ‘.- A w r ‘ I‘ I 11 -' a g - , -_—~ , 1' 1 ~.' . ' -\ . \ e£C1Cn e be u—en toe stsorbed LCnCCnese one celc1un thS o . ~ ~ + o ." f‘fi- A ‘ c ‘ o ‘ -f _: I x" P. 1 ...‘ in too soliCion. 11C result is C gTQCIPAtEtLDJ o: tns "1 .,,1- .~ If...» 1.." .n -. .1— -m- ~11 IOIner cCtion Cs insoluble an3Cncss nfuroxi e anCd mzv ‘ 0 ti t" H C) be oxio ized t A relC— ti onsl1io ties eviient between total m'C‘1113C.1ese in the plent tissue and total soil 113enese. Soil nimbel s l and 5 contained the highest percente3es of totCl soil 1enanese and the ; Cnt tissue hervested from these two soils was also the higuest in totCl men Cnese. This -51- relCtionshig, however, is i1flluenced pi, Circe the ~r1 ma ‘ elchn13eC13-e an Ch 1 ‘ ‘1 - . 1 .. . fl . t: ’1 3 _ C r- 1‘ . I_1 1 ‘ ‘ C . Vl' r‘ S Lu Ln...» 1- I. ha. T3 f L) I .....L \.-—rf-Lt '1‘ L4 6 3 V (at S (D (1‘1 pracomin1Cntl" governed by the pH of the soil. 1 - .11, . . 1 1 J. u —. —. 1 ‘ In a gene1C wev tdd dCCC uLVb sho n tuCt the eCsily .1-_ -. -, 1. -'2~ H. " ‘1‘. ’- - 1 .—‘ ~P, K j s: ‘ “ PSdUClLit m AMLHQS: n ICCSed cs t3: '“CALE Cble :Cn1Cnese *I‘ p. O S ('1' .‘3 l "5 a) m 11' F.) (.1. m C 0‘ d c. H. :5 Q; m .L—J |._J O H: (“f C m (J P. H m ‘5’. DC: ( y:- at stron3ly acid CON(lt"OuS, however, such a soil reaction WOle nzt be inducive to good lent growth. Additions of S"lfur to ClkCline mucks nCve uermunently lowered t11e 03 {'7 ”t in -) ‘41 .... {‘0 CL .04 :14. b. ,4 Q .1 C' 9-. (n (D (11 (1‘ DJ CD (‘1'! <1 (‘3 H r)” H. H J (—1. O *1 H :2.) (‘1 H p. 1 1‘ 9'1 ...) (13 U) ’2‘. '7 U) l the 1111:. 'CilC-ble conditf o 1, 1118'1”€1111C mangCnes-e. .- It has teCn shown (14) that 'n alkaline soil at 5:. I 7‘ , "' vr r r-r‘r‘“ "\ 1‘ :- fl 1 14f“- CCs o .1.m. o1 e-chn3eetl, rCng-nsse mu t be 31es-nt for SCtisiCctcry cro; broiuctlcn. liror t11esC d3 ta it 18 observed t the exchnserle or nCnrsn013 zen Cnese .- p‘r‘J A n f“ r ... . o \‘ _. C r- becon1 ‘cllClEnt (less u 3.3.x.) Ct C331OXiLC-ely 11 u.C. \ ”"r . " .Ar r" ~“I "’\r . -* —‘: x - J“ «1 A 1‘38 "e ra-l i'QLr :LJICL‘ULCS \d LJ‘;:rOA‘d t -1.-.» HUANL‘LLJ (ax—1L :4”. n. Om. Uf tchC1CeC;le an3Cnese :ell off rC3idl to tel. 3C13C' 11es WCs founu to be CreCtest in the leres of the 3lCnts. The ratio of men3C— ‘ . ' ‘ 1 ' “ 4" I. (4 ' "‘ ~\ -" ‘ 1’ F ' " "o ""' “‘~”"‘ ‘1 nese in tie 1CCVes b0 tnCt Oi tdz oilts mes C.110111C eCy 'w '1 ‘4. w . . A- . 'T ,- -. .ol -., 4 n ‘ ,r v.3 lozl at t;e lower p4 values ior sol s l, s and 4 as cengaied (- v A - .- A «y; - . i -,N- “I x1 a: to 3:1 at ta: niLner 34 values ior SQllS l, u, 4 and c. ' ‘ '.~ V. ' -‘ "' ‘ ‘ ’w -';.,‘~.",‘ 1"‘.' « ' inis snois tnat LUST, of tne .1852: is prom the analytical data of the onion tissue harvested from the non~limed treatment of soil number 1, p? 5.6, it has been shown that iron aid aluminum were yresent in such quantities as to be toxic to the plant. The addition of two tons of calcium carbonate to soil number 1 decreased the amounts of iron and aluminum in the glant tissue, as shown in Tatl1 9, and the subseguent onion yields were increased fnom .oé grrns to 15 grams resoectively. Crist (3) and Hardenburg (lb) found that applicatio s of lime greatly reduced the intake of iron and aluminum by the tlant. From the results obtained, manganese does not appear to be the toxic micro-nutrient element since it gas actually present in smaller quantities in the plant before tne addition of calcium carbonate than afterwards. Tne increased manganese content subsequent to calcium carbonate addition is converse to the other results obtained with manganese availability. It is Lnomn, nowever, that an encess amount of aluminum has caused a renuction in the absorption of all materials (33 . -50- The reduced quantities of soluble aluminum in the soil after the additiOn of calcium carbonate offers a gossible exolana- tion for the difference in manganese content of the ,lant tissue before and after calcium carbonate additiOn. Aluminum toxicity or a combined toxicity of aluminum, iron and possibly manganese appears to account for the low yields obtained from the unlined treatments of soil numbers 1 and 2 which had pH values of 5.6 and 5.7 resgectively. As shown in Figures 4 and 5 the onion plants were dwarfed and the roots produced few branches. As shown from the data in Table 1% calcium carbonate significantly increased the yields of onions on soils 1, 2 and 5 (1% level) and at the 5 per cent level between calcium carbonate treatments on soils 4 and 5. The unlined treat- ment on soil number 5 gave significantly higher yields over the limed treatments and this was the only soil that did not resgond to calcium carbonate addition. Soil number 5 was 85 per cent base saturated before liming, aboarently increased additions of calcium carbonate decreased the absorption of the micro-nutrient elements and esoecially manganese as shown in Table 8. Although there was no direct correlation between the yield of onion bulbs and manganese content there apneared to be a definite trend in this direction. -54- With the exception of the unlimed treatments (check treatments) of soils 1 aid 2 the heavily limed treatments gave the lowest yields and they also contained the lowest amounts oi man ahese; however, some of the treatments that also gave high yields contained low amounts of manganese. Results have shown, Table 25, that the highest " ' '1 in ’L' "o "‘1“ ‘:‘ ‘1. V A A . :r 1" f" ' r x ‘ A V 'r .7»: chlu lOl the live soils tere Obtained betaeen pn 4.20 U) and 5.5 and the Optimum pH approximated 5.0. The manganese content in the onion bulbs obtained from the soils uith the highest yields ranged between 22 and 50 p.p.m. The data hsve shown that it is important to recognize not only the beneficial effects of calcium, applied in.the form of lime (calcium carbonate) in optimum amounts but also possible detrimental effects associated with overliming. While the need for lime is recognized as a recommended soil management piactice, the addition of excessive amounts of lime to a soil should be avoided in order to prevent the inducing of certain micro-nutrient element deficiencies, notably manganese. SUHQAHY This study was instituted to determine the effects of calcium carbonate addition on the manganese status of five acid organic soils and to investigate a number of factors that might be associated with the causes of variation on the reaponse of different acid organic soils to lime applications. Five organic soils of varying acidity were obtained from different locations in hichigan. The soils were dried to an apparent Optimum moisture content and each soil was sieved through a 1/4 inch screen. Determinations of pd were made on duplicate samples at a previously determined moisture content by the glass electrode method. Lime was added to the soil in 2 ton increments resulting in soil treatments varying from 2 to l2 tons per acre. Each treat- ment was replicated three times. An unlimed treatment was included in each case. A basic treatment of 2,000 pounds of 3-9-18 fertilizer and 100 pounds of copper sulfate per acre was added to all the treatments of the five soils. On January 19, 195l, the jars were seeded 5/4 to 1 inch deep with Brigham's Yellow Globe, a medium maturing -56- variety of onions. The onions were harvested on June 21, 1951. Air dry weights of the tops and bulbs were recorded. The untreated soils were chemically analyzed for the following constituents: Exchangeable calcium, magnesium, potassium, sodium, manganese and iron, and total iron, aluminum and marganese. In addition the following properties were determined: pn, exchangeable hydrogen, total exchange capacity, exchangeable cations and per cent base saturation. The lime requirement for each soil was determined. Exchange- able and easily reducible manganese and pH were determined on the soils after treatment with calcium carbonate and following the harvesting of the onions. ‘ Total manganese determinations were made on oven- dried tissue from the tOps and the bulbs of the onions. The following observations were made from the investigation; 1. The per cent base saturation and total exchan capacity are perhaps better criteria than the pH value for estimating lime needs on the organic soils investigated. 2. Percentage base saturation was found to be closely related to the exchangeable calcium content of the soils. 5. The yields of the unlimed treatments increased with incr ased exchangeable calcium up to the point where additional calcium inhibited increased yields. 4. The exchangeable manganese decreased in the five organic soils with increased calcium carbonate applications 5. There was a positive relationship between exchange- able manganese and total manganese in the soil in strongly acid conditions, however, this relationship did not nold at higher pH values. 6. There was some indication of relationship between total manganese in the plant tissue and total manganese in the soil, however, this relationship was id part dependent on the amount of exchangeable manganese present in the soil which varied with pH. 7. In a general way the easily reducible manganese increased as the exchangeable manganese decreased with increased calcium carbonate applications. 8. All five soils had sufficient total manganese to supply adequate amounts for good plant growth, but under a continuous crOpping system additional manganese would be required. 9. In every case the total manganese was found to be greatest in the leaves of the plants. 10. at intensely acid pd values (5.0-3.9), the iron and aluminum were present in the plant tissue in sufficient amounts to be toxic to the plants. -53- ll. The addition of cal ium carbonate decreased the amounts of iron and aluminum in the plant tissue. 12. A high significance between treatments was obtained with addition of calcium carbonate on soils 1, 2 and a with pH values of 5.6, 5.7 and 4.0 reSyectively. It was not advantageous to lime soils 4 and 5 which had pi values of 4.5 and 5.0 resgectively. 15. Although there w s no direct correlation between the yield of onion bulbs and manganese content there appeared to be a definite trend in this direction. 14. The highest yields for the five soils were obtained between 9H 4.2 and 5.5 and the Optimum pH ayproximates 5.0. The manganese content of the onion bulbs which gave the highest yields ranged between 22 and 10. -59.. EIELIOGRAPJY Blair, A.W. and A. L. Prince, 1956. Manganese in New Jeis ey soils. Soil Sci. 2(5): 527-555. Bray, 3.3. and F.x. Uillhite, 1929. The determination of total refilaceable bases in soils. Ind. Eng. Chem. Annal. Ed. 1: 144. Crist, J.W., 1925. Growth of lettuce as influenced by reaction of culture medium. hich. Agr. Expt. Sta. Tecn. Dul. 71. Davis, J.F., 1950. Much soils when bronerly fertilized oroduce high yields. Amer. Plant Food Jour. 4: 5-11. Davis, F. L. and C. Brewer, 1940. The effect of liming on the absorption of uhOSJhorus and nitrogen by winter legumes. Jour. Amer. Soc. Agron. 55: 4 4-462. Drosdoff, M. and D. C. Nearpass, 1945. Quantitative micro-deterrination of magneSium in ,lant tissue and soil extracts. Ind. Eng. Chem. Anal. Ed. 20: 675-674. Dunn, L.E., 1944. The effect of lime on the availa- bility of nutrients in certain western aashington soils. Soil Sci. 56: 287-516. Emmert, E.L., 1951. The effect of soil reaction on the growth of tomatoes a' ulettuce and on the nitrogen, phosphorus and manganese content of the soil and plant. Ky. Agr. EXpt. Sta. Res. Bul. 514: 85. Funcness, E.J., 1915. The develonment of soluble manganese in acid soils as influenced by certain nitrogenous substances. Ala. Agr. Exgt. Sta. Bul. 201. Ge droiz, K.K., 1926. The investigations of K.K. Gedroiz on base exchange and absorption. A resume. Internatl. Soc. Soil Sci. Trans. Second Comm. A: 195. ll. (A ltd O 14. 16. 17. }...J 1.) 19. -60- ‘ Gilbert, B.E., F. T. TcLean and L.J. Hardin, 1926. The 1e1atioi oi marganese and iron to a lime induced chloros' 3. Soil Sci. 22: 457. ii Lssinn, D.J., 1926. Uhat nagzehs to the lime when soil is limed? Internatl. Soc. Soil Sci. Trans. Second Comm. A: 174. , 19 6. The relation between the values pd, V and (humus) 01' some humic soils. Internatl. Soc. Soil. Sci. Trans. Lecond Comm. A: 195. TU) DD harmer, P.m., 1941. The mucl: soils of nichigan, their management and uses. Mich. Agr. Empt. Sta., Snec. nul. 514 hardenbu‘g, E.V., 1925. Luck soil reaction as related to the gro.;th 01 certain leaf Vegetables. Plant Physiol. 5: 199-219. Jacobson, H.G. and T.R. 5W? “aback, 192s. Kanganese toxicity in tobacco. Science 72: 255-224. Lynd, J.Q. and L.H. Turk, 1945. Overliming injury on an acid sandy soil. Jour. Amer. Soc. Agron. 4:0: SOL-4: E. Iann, h.B., 1950. Availability of manganese and iron as affected bf afglications of calcium and magnesium carbonates to the soil. Soil Sci. 50: 117-151. McGeorge, ‘.-L’.T., 1950. The base ex'hange nroyerty of organic matter in soils. Ariz. Agr. EXEC. Sta. Tech. nul. 50: 151-215. Lcflargue, J. 8., 1922. The role of manganese in 91.8.1113?) 0 J01}; o ." m‘n‘ELl‘. 8.1».1110 SOC o 44:11,.125. , 1925. Effect of different concentrations of manganese sulghate on the growth of plants in acid and neutral soils and the necessity of manganese as a plant nutrient. Jour. Agr. Res. 2 : 751-794. m 01 O 27. ’3’) O) o (1” 29. ‘1 5}} -51- McLean, F.T. and B.E. Gilbert, 192 . The relative aluminum tolerance of crop plants. Soil Sci. 24: 165-174. Moser, F., 1942. Calcium nutrition at reapective pH levels. Soil Sci. Soc. Amer. Proc. 7: 559—544. huller, J.F., 1955. Some observations on oa. exchange in organic materials. Soil Sci. 55: 2*” ‘ Naftel, J.A., 1957. Soil liming investigations: The influence of lime on yields and on the chemical composition of slants. Jour. Amer. Soc. Agron. 29: 557-547. Official and tentative methods of analysis. 1945 Ed. 6, Assoc. Official Agr. Chem., Jashington, D.C. Pioer, 0.8., 1951. The availability of manganese in the soil. Jour. Agr. Sci. 21: 762-779. Pierre, W.H. and u.n. Allaway, 1941. Calcium in the soil: biological relations. Soil Sci. Soc. Amer. Pierre, N.h. and A.D. Stewart, 1955. Soluble aluminum studies: IV. The effects of phosohorus in reducing the detrimental effects of soil acidity on plant growth. Soil Sci. 56: 211-225. Prince, A.L. and S.J. Toth, 19 . Studies on behavior of manganese in the soil. S111 Sci. 46: S5. Remington, R.E. and 3.3. Shiver, 1950. Iron, cougar, and manganese content of some common vegetable foods. Jour. assoc. Off. Agr. Chem. 15: 129. Russell, Sir E.J., 1955. Minor elements in slant nutrition - hanganese. The Jour. of the Royal Agric. Soc. of England 99: 555. From minor element abstracts. Schollenberger, C.J. and 3.5. Simon, 1945. Determination of exchange capacity and exchangeable bases in soil - ammonium acetate method. Soil Sci. 59: 15-24. 41. _ C) -' A) Sherman, D.C. and P.H. Harmer, 1942. manganic equilibrium of soils. Soil Amer. Proc. 7: 598-455. Toth, S.J., A.L. Prince, A. Wallace and D.S. Hikhelsen, 1946. Rapid quantitative determination of eiéht mineral elements in slant tissue by a systematic procedure involving use of a flame bhotometer. Soil Sci. 66: 459-466. Triog, E., 19 8. Soil acidity. 1. Its relation to the growth of olants. Soil Sci. 5: 169-195. Wilson, B.D. and E.V. Staker, 1955. Ionic exchaxce of pea soils. Cornell Univ. Agr. EXpt. Sta. Memoir 172: 1-15. combosition of the muck soils of New York. Cornell Univ. Agr. Expt. Sta. Bul. 557: 1-26. Willis, L.G. and J.O. Carrero, 1924. Influence of some nitrogenous fertilizers on the develooment of chlorosis in rice. Jour. Agr. Res. 24: 621-640. Willard, H.H. and L.£. Greathouse, 1917. The colori- metric determination of manganese by oxidation with periodate. Jour. Amer. Chem. Soc. 59: 2566-2577. Hoodruff, C.H., 1947. Determination of the exchangeable hydrogen and lime requirement of the soil by means of the glass electrode and a buffered solution. Soil Sci. Soc. Amer. Proc. 12: 141-142. {.11 1111 ( fl‘l‘l‘. '