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Potassium fixation in soils: Studies by electrodialysis
Author(s) -
Cornfield A. H.,
Pollard A. G.
Publication year - 1952
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740031202
Subject(s) - potassium , electrodialysis , soil water , chemistry , mineralogy , membrane , soil science , biochemistry , geology , organic chemistry
Abstract The amount of potassium fixed by four soils as a result of alternate wetting and drying at an elevated temperature (95°) increased with the clay content of the soil. Electrodialysis released about half of the fixed potassium from two of the soils, about two‐thirds from another soil and all the fixed potassium from the fourth. The amount of potassium fixed by an individual soil increased with increasing potassium treatments, but the percentage of the fixed potassium removed by electrodialysis was independent of the amount fixed. It would appear that when potassium is fixed by soils, more than one type of compound or class of compounds of potassium may be formed.