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Solution Phosphorus Concentration and Growth of Rice (Oryza sativa L.) in Flooded Soils
Author(s) -
Hossner L. R.,
Freeouf J. A.,
Folsom B. L.
Publication year - 1973
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/sssaj1973.03615995003700030028x
Subject(s) - oryza sativa , soil water , phosphorus , agronomy , fertilizer , phosphate , chemistry , nitrogen , phosphate fertilizer , dry matter , rice plant , organic matter , environmental science , soil science , biology , biochemistry , organic chemistry , gene
Soil solution P concentration was monitored at weekly intervals during the vegetative growth of Rice ( Oryza sativa L. var. ‘Bluebelle’) on flooded soils from the gulf coast region of Texas. Significant increases in dry matter production were obtained from application of phosphate fertilizer. Average soil solution P concentration ranged from 0.02 to 5.28 ppm when all soils and P fertilization rates were considered. A linear relationship was obtained between the logarithm of the average soil solution P concentration and the P concentration or P uptake of the plant. Yields were greater than 90% of maximum when the average soil solution P concentration was greater than 0.1 ppm. The concentration of P in the plant tissue at 0.1 ppm soil solution P was 0.25%.