Section 32
Chapter 31,095

Effect of long-term fertilization on the group composition of phosphates in leached chernozem of the Central Chernozemic Zone

Donskikh, I.N.; Djumah, A.-Mazen; Myazin, N.G.

Agrokhimiya 5: 5-10


Accession: 031094769

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The 18-year-long application of different fertilizing systems differently affected the content of basic groups in mineral phosphates. Organo-mineral fertilizing systems promoted a significant increase in carbonic acid-soluble compounds and phosphate extractable by 0.5 n. CH3COOH. The use of lime cake in combination with organic or mineral fertilizers decreased the content of these phosphate groups. The highest accumulation of phosphates extractable by 0.5 n. HCl was associated with the use of organo-mineral fertilizers. The accumulation of mineral P compounds was observed in the soils of experimental treatments, mainly in the 0- to 20- and 20- to 40-cm layers.

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