INFLUENCE OF ACIDITY OF SOD-PODZOLIC LOAMY SAND SOIL ON THE90Sr ACCUMULATION BY CROPS

Abstract

In the field experiments conducted on sod-podzolic loamy sand soil (Podzoluvisol) сlose negative correlations have been found between the exchangeable acidity of the soil (pH) and⁹⁰Sr accumulation by crops. The intensity of the acidity neutralization effect on the reduction of the⁹⁰Sr transfer to plants is higher at lower pH values. The minimum biological availability of⁹⁰Sr for grain crops was noted at pH 6,82-6,90, rapeseed - 6,62, corn - 6,78, timothy grass - 6,30, clover - 6,52, alfalfa - 6,50, lupine - 6,09, аrctic clover - 6,43 and potatoes - 6,84.