Comparative effects of sodium and potassium salts on the physicochemical conditions of soils
1995
Zalba, P. | Martinez, R.S. | Peinemann, N.
Though it is commonly held that sodium (Na) rather than potassium (K) salts affect soil properties, in some treatments the opposite has been found to be the case. The present paper describes soil trials carried out to determine changes in organic matter and colloidal content, pH, cation exchange capacity, and exchangeable cations as a consequence of leachings with Na and K salts. It was possible to classify salts into weakly and strongly alkaline according to their effect on soil properties. On the basis of the effect of K on soil properties, it is concluded that this salts should be included in soil salinity classifications.
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