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INFLUENCE OF GREEN FERTILIZERS ON THE DYNAMICS OF COPPER, ZINC AND CADMIUM COMPOUNDS IN BLACK SOILS OF NORTHERN KAZAKHSTAN

Abstract

The article presents the results on the content of copper, zinc and cadmium in the soil and grain of spring triticale. The influence of green fertilizers in comparison with mineral fertilizers on the dynamics of the content of trace elements in the soil was studied and triticale grain was evaluated. The research was conducted in the zone of southern carbonate black soils of Northern Kazakhstan. According to the predecessor of wheat grass on a traditional background with the use of ammophos at a dose of P40 and ammonium nitrate at a dose of N80, on an organic background, aboveground biomass of medic and wheat grass was used as green fertilizers. Studies have shown that the use of fertilizers at a dose of P40 + N80 does not lead to significant accumulation of zinc in the soil. The use of green fertilizers leads to an increase in the content of mobile zinc compounds in the soil, which contributes to the migration of Zn in the "soil plant” system. The content of mobile copper in the soil changes during the growing period of triticale when using mineral and green fertilizers, which is associated with active removal from the soil for plant growth. Admixtures of cadmium in mineral fertilizers with 2 -year use increase the content of the element in the grain triticale (2018-0.07 mg/kg, 2019-0.06 mg/kg with a MAC of 0.10 mg/kg).

About the Authors

N. B. Zuyeva
Scientific and production center of Grain Farming named after Barayev
Kazakhstan


L. D. Zhloba
Scientific and production center of Grain Farming named after Barayev
Kazakhstan


K. K. Kunanbayev
Scientific and production center of Grain Farming named after Barayev
Kazakhstan


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For citations:


Zuyeva N.B., Zhloba L.D., Kunanbayev K.K. INFLUENCE OF GREEN FERTILIZERS ON THE DYNAMICS OF COPPER, ZINC AND CADMIUM COMPOUNDS IN BLACK SOILS OF NORTHERN KAZAKHSTAN. Soil Science and Agrichemistry. 2020;(4):67-74. (In Russ.)

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