Influence of gley processes upon phosphatic state of soils

Abstract

The purpose. To assess phosphatic state of gleyed soils, character of influence of gley processes upon behavior of phosphatic anions, their accumulation, movability and migration. Methods. Theoretical generalization, laboratory-model experiment, chemical analysis, calculative-analytical. Results. It is established that clayey processes intensify transition of the most accessible for plants phosphatic anions of soil solution into the linked phosphate-mineral and phosphate-organic-mineral forms. The primary factor of activation of these processes is free (non-silicate) joints of iron and aluminium which content essentially increases under the influence of gley destruction of clayey minerals. Conclusions. Optimization of phosphatic regime in gley soils is possible and effective exclusively only on the background of agromeliorative practices. It may be successfully solved by application of author’s innovative development - local organic-mineral system of farming agriculture.