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Some Equilibrium Solution Studies on Rothamsted Soils
Author(s) -
Taylor A. Wormald
Publication year - 1958
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/sssaj1958.03615995002200060009x
Subject(s) - soil water , soil science , environmental science , geology
Experiments designed to determine the variation in composition of solutions brought into equilibrium with samples of four different soils at widely different electrolyte concentrations are described in detail. The ratio law relationship between the potassium and calcium ion concentration( a K /a Ca= constant )is found to be strictly obeyed only in soils of low potassium status. Variations observed in soils which have received large dressings of potassium fertilizer are attributed to an exchange reaction by which the amount of potassium in readily exchangeable form is increased as the electrolyte concentration is raised.