Petrographic and mineralogical structure of alluvial meadow dark-coloured soils of delta of the river of Volga

Petrographic and mineralogical structure of alluvial meadow dark-coloured soils of delta of the river of Volga

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Results of research of petrographic and mineralogical structure of alluvial meadow dark-coloured soils are Boys Swim resulted.Studying soil parts has allowed to receive the qualitative and quantitative characteristic of clay minerals.Their influence on physical properties is established.At an intensive irrigation of cultivated cultures mobili-sation possibilities of K and T-Shirts other biogene elements from soil decrease.