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Residual Effect of Phosphorus on Cotton Grown on Cecil Soil as Determined with Radioactive Phosphorus
Author(s) -
Stelly Matthias,
Morris H. D.
Publication year - 1953
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1953.03615995001700030020x
Subject(s) - phosphorus , loam , fertilizer , lime , agronomy , sowing , chemistry , yield (engineering) , environmental science , crop , soil water , soil science , geology , materials science , biology , paleontology , organic chemistry , metallurgy
A field experiment was conducted on Cecil sandy clay loam in 1951 to determine the residual effect on cotton of superphosphate applied in 1949 at different rates and by different methods on limed and unlimed soil. Crop yield, phosphorus content of the plants, and percentage of phosphorus in the plants derived from the fertilizer were criteria by which these variables were evaluated. Increases in seed cotton yield and phosphorus content of the plants in 1951 resulted from the phosphorus applied in 1949. The response was directly related to the amount of phosphorus applied and to the dilute‐acid soluble phosphorus in the soil at time of planting. No significant response in yield, phosphorus content, or percentage phosphorus in the plant derived from the fertilizer was obtained from the addition of lime. The method of applying the phosphorus in 1949, broadcast or drilled, had no significant effect on any of the criteria evaluated. Approximately 28% of the plant phosphorus was derived from the fertilizer applied in 1951 to soil which had received no phosphorus in 1949. The percentage of the phosphorus in the plants derived from the fertilizer applied in 1951 decreased sharply and directly with increases of phosphorus additions in 1949.