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Effects of long-continued differential fertilizing on the level of various soil phosphates


, : Effects of long-continued differential fertilizing on the level of various soil phosphates. Roczniki glebozn, 18: 523-535

Phosphate fractions, pH, and exchange and hydrolytic acidity were determined in podzolic soil (loamy sand) after 18 years of application of N, P and K, singly or in all combinations. Contents of total P and Ca-phosphates were decreased by NK, whereas the latter were increased by complete NPK fertilizing combined with liming.

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