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Subject: Phosphatic fertilizers
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Subject: Soils--Phosphorus content
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Electronic Theses & Dissertations
2
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Theses
2
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English
2
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In Copyright
2
Subject
Histosols
1
Phosphates
1
Potassium fertilizers
1
Soils--Potassium content
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Effectiveness of phosphate rocks in Colombian soils as measured by crop response and soil phosphorus levels
Hammond, Lawrence Leroy, 1945-
Text (1977)
Part of
Electronic Theses & Dissertations
The behavior of applied phosphorus and potassium in organic soil as indicated by soil tests and the relationship between soil tests, green-tissue tests and crop yields
Bigger, Theodore Cuyler
Text (1953)
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Electronic Theses & Dissertations
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