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BIOLOGICAL ACTIVITY OF IRRIGATED SALINE SOILS OF TURKESTAN REGION

Abstract

The preservation of the biological activity of irrigated saline soils plays an important role in increasing crop yields, including the formation of resistance to biotic and abiotic stress in plants. At the same time, the use of biological fertilizers and biological products based on effective microorganisms provides plants with mineral nutrition elements, increases the biological activity of soils and is the basis for maintaining and increasing the fertility of unproductive soils. In the treated variants of Cuxin Hangepetunien, Cuxin Redu-BAC, Cuxin Zim merpflanzen, iron sulfate and based on the Bacillus amyloliquefaziens FZB 42 strain, the number of pseudomonas is 107 CFU/g, which is an indicator of the highest level of this genus and the effectiveness of the applied biological fertilizers. In the summer period, the number of actinomycetes in the studied samples decreased, their number is 103 CFU/g.in the Cuxin Redu-BAC variant, the number of actinomycetes decreased by 102 CFU/g in the autumn, and in the other variants, no growth was observed. Seasonal dynamics of micromycetes and the level of the number of fungi make up 10-20 % of the total number of microorganisms in the soil. A high level (100 %) of the presence of a population of the genus Azotobacter was established.

About the Authors

A. S. Saparov
Research Center for Ecology and the Environment of Central Asia
Kazakhstan


F. . Eulenstein
Leibniz Centre for Agricultural Landsape Research (ZALF)
Germany


G. A. Saparov
Research Center for Ecology and the Environment of Central Asia
Kazakhstan


N. . Tokseitov
U U Uspanov Kazakh Research Institute of Soil Science and Agrochemistry 050060
Kazakhstan


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Review

For citations:


Saparov A.S., Eulenstein F., Saparov G.A., Tokseitov N. BIOLOGICAL ACTIVITY OF IRRIGATED SALINE SOILS OF TURKESTAN REGION. Soil Science and Agrichemistry. 2020;(3):43-53. (In Russ.)

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ISSN 1999-740X (Print)
ISSN 2959-3433 (Online)