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The Movement of Sulfate Salts in Soils
Author(s) -
Swoboda A. R.,
Thomas G. W.
Publication year - 1965
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/sssaj1965.03615995002900050020x
Subject(s) - leaching (pedology) , chemistry , distilled water , hydrolysis , adsorption , soil water , sulfate , desorption , potassium , environmental chemistry , ion , inorganic chemistry , mineralogy , chromatography , geology , soil science , organic chemistry
The movement of potassium sulfate in columns of calcium‐saturated Cecil soil was studied. The desorption by hydrolysis of adsorbed SO 4 2‐ ions was found to influence the distribution of other ions in the columns. Leaching with 10.4 inches of water caused only slight hydrolysis of adsorbed SO 4 2‐ and adsorbed cations. Excessive leaching with 104 and 207 inches of distilled water caused considerable hydrolysis and displacement of adsorbed SO 4 2‐ as well as K + and Ca 2+ . The amount of hydrolysis in columns of calcium‐saturated Yolo soil which does not adborb SO 4 2‐ was found to be much lower than in the Cecil soil columns. Soil profiles taken from central Piedmont of Virginia showed substantially the same distribution of SO 4 2‐ as found in laboratory columns. The highest concentration of Mg 2+ always was found to occur at the same depth as a maximum concentration of SO 4 2‐ .