Assessment of the Effectiveness of the Use of Biological Products of Associative Nitrogen Fixation in Potato Cultivation

DOI

10.2991/assehr.k.200113.205How to use a DOI?

Keywords

potato, rhizosphere, microorganisms, yield, potato diseases

Abstract

At present time, in the current economic and environmental conditions in Russia, with limited use of mineral fertilizers in agricultural production, the use of biological cropping techniques is relevant. One of the directions is application of microbial preparations safe for the person and environment, as an element of resource-saving technologies as their production is less power-intensive, than mineral fertilizers, and application is economically favorable. Purpose of research: with the help of microbiological indicators sensitive to agrogenic loads to evaluate and compare the effect of various biological products on the number of microorganisms and the intensity of the transformation processes of organic compounds in the potato rhizosphere, the formation of crops and the development of potato diseases. In the field experiments of 2013-2018, agents Rizoagrin, Azorizin, Mizorin and agents with fungicidal, insecticidal and stimulating properties – Mival-agro, potassium humate, Prestige were used. The quantity of microorganisms in the rhizosphere of potatoes was the highest in the variant with the treatment of tubers with the Mival-agro agent (126At present time, in the current economic and environmental conditions in Russia, with limited use of mineral fertilizers in agricultural production, the use of biological cropping techniques is relevant. One of the directions is application of microbial preparations safe for the person and environment, as an element of resource-saving technologies as their production is less power-intensive, than mineral fertilizers, and application is economically favorable. Purpose of research: with the help of microbiological indicators sensitive to agrogenic loads to evaluate and compare the effect of various biological products on the number of microorganisms and the intensity of the transformation processes of organic compounds in the potato rhizosphere, the formation of crops and the development of potato diseases. In the field experiments of 2013-2018, agents Rizoagrin, Azorizin, Mizorin and agents with fungicidal, insecticidal and stimulating properties – Mival-agro, potassium humate, Prestige were used. The quantity of microorganisms in the rhizosphere of potatoes was the highest in the variant with the treatment of tubers with the Mival-agro agent (126% to control). All groups of determined microorganisms in this variant reacted positively to the treatment. The Rizoagrin and Mizorin agents stimulated the microbial abundance by 61 and 17At present time, in the current economic and environmental conditions in Russia, with limited use of mineral fertilizers in agricultural production, the use of biological cropping techniques is relevant. One of the directions is application of microbial preparations safe for the person and environment, as an element of resource-saving technologies as their production is less power-intensive, than mineral fertilizers, and application is economically favorable. Purpose of research: with the help of microbiological indicators sensitive to agrogenic loads to evaluate and compare the effect of various biological products on the number of microorganisms and the intensity of the transformation processes of organic compounds in the potato rhizosphere, the formation of crops and the development of potato diseases. In the field experiments of 2013-2018, agents Rizoagrin, Azorizin, Mizorin and agents with fungicidal, insecticidal and stimulating properties – Mival-agro, potassium humate, Prestige were used. The quantity of microorganisms in the rhizosphere of potatoes was the highest in the variant with the treatment of tubers with the Mival-agro agent (126% to control). All groups of determined microorganisms in this variant reacted positively to the treatment. The Rizoagrin and Mizorin agents stimulated the microbial abundance by 61 and 17%, respectively, the agent showed fungicidal properties by 38.6At present time, in the current economic and environmental conditions in Russia, with limited use of mineral fertilizers in agricultural production, the use of biological cropping techniques is relevant. One of the directions is application of microbial preparations safe for the person and environment, as an element of resource-saving technologies as their production is less power-intensive, than mineral fertilizers, and application is economically favorable. Purpose of research: with the help of microbiological indicators sensitive to agrogenic loads to evaluate and compare the effect of various biological products on the number of microorganisms and the intensity of the transformation processes of organic compounds in the potato rhizosphere, the formation of crops and the development of potato diseases. In the field experiments of 2013-2018, agents Rizoagrin, Azorizin, Mizorin and agents with fungicidal, insecticidal and stimulating properties – Mival-agro, potassium humate, Prestige were used. The quantity of microorganisms in the rhizosphere of potatoes was the highest in the variant with the treatment of tubers with the Mival-agro agent (126% to control). All groups of determined microorganisms in this variant reacted positively to the treatment. The Rizoagrin and Mizorin agents stimulated the microbial abundance by 61 and 17%, respectively, the agent showed fungicidal properties by 38.6% in comparison with the control variant. The coefficients of mineralization, immobilization of nitrogen and transformation of organic matter in potato rhizosphere were calculated from the ratio of groups of microorganisms. The predominance of immobilization processes in the soil was established. Nitrogen of non-symbiotic fixation, the amount of which increases as a result of the action of microorganisms of biological products, remains in the rhizosphere of the crop. Agents of complex action, including microbial, increased potato yield by 1.3-7.9 t/ha, reduced disease damage: rhizoctonoise (Rhizoctonia solani), scab (Streptomyces scabies), late blight (Phytophthora infestans). An average positive correlation was established between the total number of microorganisms in the rhizosphere, the number of saprophyte bacteria on meat-and-peptone agar and yield.

Copyright

© 2020, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Alexandr Cheremisin
AU  - Olga Khamova
AU  - Nadezhda Dergacheva
AU  - Elena Tukmacheva
PY  - 2020
DA  - 2020/01/29
TI  - Assessment of the Effectiveness of the Use of Biological Products of Associative Nitrogen Fixation in Potato Cultivation
BT  - Proceedings of the International Scientific Conference The Fifth Technological Order: Prospects for the Development and Modernization of the Russian Agro-Industrial Sector (TFTS 2019)
PB  - Atlantis Press
SP  - 371
EP  - 375
SN  - 2352-5398
UR  - https://doi.org/10.2991/assehr.k.200113.205
DO  - 10.2991/assehr.k.200113.205
ID  - Cheremisin2020
ER  -