Co-Authors:
Feigenbaum, S., Institute of Soils and Water, The Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Levy, R., Institute of Soils and Water, The Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
Abstract:
Potassium release from samples of two saline and three nonsaline soils was studied by measuring the amounts of the cation in 0.01 N CaCl2 and water extracts. The factors which affected the release were: the distribution of potassium between the silt and clay fractions, the total potassium content of the sample and its salinity. Soil samples with a distribution ratio above unity (i.e., with potassium mainly in the silt fraction) and a high total potassium content released K at a higher rate than those with a distribution ratio below unity and a high total potassium content. The effect of salinity was of minor importance in comparison with those of the two other factors. © 1977.
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