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Correlation of Phosphorus Soil Test Values With Rice Yields in Thailand
Author(s) -
Vajragupta Ying,
Haley L. E.,
Melsted S. W.
Publication year - 1963
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/sssaj1963.03615995002700040014x
Subject(s) - phosphorus , mathematics , fertilizer , soil water , soil test , agronomy , environmental science , soil science , chemistry , biology , organic chemistry
The Bray P‐2 soil test was applied to Thailand rice soils, and the values obtained were correlated with rice yields according to the expression log (A — y) = log A — c 1 b 1 — c log x. The calculated and obtained yields of rice for the various soil test values and phosphorus fertilizer rates are reported. Comparisons of the obtained and calculated yields show that the Bray P‐2 soil test values correlate with rice yields and that the test can be used on the rice soils of Thailand.