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CHANGES IN BIOLOGICAL PROPERTIES OF ORDINARY BLACK SOILS AT GLEYISATION (MODEL EXPERIMENT)  [2015]

Kandashova K. A. Kazeev K. S. Kolesnikov S. I. South Federal University [Corporate Author]

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The article presents the results of laboratory modeling of gleyisation and its effect on the biological properties of soils with stagnant regime in ordinary black soils. Gleyisation is a complex biochemical process that occurs under oxygen reduction conditions. Anaerobic microorganisms, the presence of organic substances, and the constant or prolonged waterlogging of individual horizons or the entire soil profile promote gleyisation. Model experiments revealed that gleyisation increase the total number of bacteria and suppresses number of actinomycetes, micromycetes and growth of fungal mycelium. Gleyisation decreases the activity of oxidoreductases and increases the hydrolases activity. In addition, the second content of humus slightly increases and active acidity (pH) changes to neutral. Accumulation of large amounts of iron oxide (II) in soil is revealed

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Polythematic Online Scientific Journal of Kuban State Agrarian University

ISSN : 1990-4665