Cation-anion structure of lysimeter solutions from arable soils of Belarus (according to 1981–2012)
2015
Pirahouskaya,G.V.
In a course of the research there was studied the cation-anion structure of lysimetric solutions from arable soils of Belarus. The research was realized in the conditions of the Republic of Belarus in 1981 -2012 in the RUE ‘Institute for Soil Science and Agricultural Chemistry’. The data of long-term lysimetric researches on cation-anion structure of sod-podzolic soils different texture are cited. As a result of research it was revealed that the sum of ions (аnions and cations) in lysimetric solutions during researches changed from 5.8 (sandy) up to 9.9 mg-equivalent/l (coherent sandy soil spread with moraine loams). Change of ionic structure and cation and anion correlation in a soil solution were influenced with entering lime means, organic and mineral fertilizers. At the increased dozes of entering both mineral and organic fertilizers, the cation and anion content in a soil solution increased. At the moderate dozes of fertilizers attitudes (HCO3 -/Са 2+, SO4 2 -/Са 2+ and Cl -/Са 2+) decreased, that testified to pollution decrease of ground and superficial waters by hydrocarbonates, sulfates and chlorides.
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