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The Influence of Available Phosphorus and Potash in Coastal Plain Soils Upon the Results Obtained with Different Fertilizer Mixtures
Author(s) -
Hester Jackson B.,
Blume James M.
Publication year - 1938
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/sssaj1938.036159950002000c0024x
Subject(s) - potash , citation , phosphorus , fertilizer , soil water , coastal plain , environmental science , library science , archaeology , history , chemistry , computer science , ecology , soil science , biology , organic chemistry
A series of experiments in sand culture and in soil with phosphate compounds which have different degrees of solubility, has established, with a number of vegetable crops, the value of sodium acetate solution, buffered to pH 5.0 with acetic acid, for extracting phosphorus from Coastal Plain soils. Similar experiments based upon the replaceable potash in the soil have established the value of the solution for determining available potash. A number of field experiments based upon the soil tests on various soil types in which varying quantities of phosphorus and potash were used have shown the value of these tests as a basis for fertilizer recommendations. When proper evaluation was placed upon other factors, yields of the various crops were in agreement with the soil tests.