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The Central Scientific Agricultural Library of the Russian Academy of Agricultural Sciences is a Bibliographic Center for Agricultural Science and Industry in Russia

Journal Article

Journal article

Estimation of biological and enzymatic activity of alluvial drained soils in dependence of genesis and types of lands  [2019]

Polyakova, N.V.; Lavrinova, M.G.; Volodina, E.N.; Kulagina, N.A., Nizhnij Novgorod State Agricultural Academy (Russian Federation);

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The parameters of the biological and enzymatic activity of alluvial soils depending on the degree of hydromorphism and the type of land are determined. Alluvial marsh soils formed in the floodplain of the Kudma River in the territory of the Bogorodsky District of the Nizhny Novgorod Region, a significant part of which was drained in the 1960swith the drainage canal system, were studied. The biological activity of alluvial marsh soils is determined by a complex of soil properties and regimes and is characterized by genetically determined low values. For example, peroxidase and polyphenoxidase contents reflecting the transformation of organic matter vary in the range from 1.5 to 7.3 mg of purporogallin/100 g of soil for 30 minutes. The intensity of soil respiration and catalytic activity depending on the subtype of alluvial soils lies in the range from 1.3 to 3.9 cm3 per g for min and from 0.7 to 4.4 mg CO2 per 10 g for 24 h, respectively. The highest activity of the urease enzymewas observed in the soil of the plowed plot (9.8 mg of NH4 per 10 g for 24 h), the least – in virgin dry soil (2.4 mg of NH4 per 10 g for 24 h). Cellulolytic activity of alluvial bog soils varied from 12.1% to 18.9%. The interrelation of indicators of the biological activity in alluvial soils with the content and component composition of organic matter has been established.

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Agrochem Herald

ISSN : 0235-2516