Study of the effect of the biological product based on Bacillus atrophaeus on potato quality

Research in recent years has been actively considering the development and implementation of biological plant protection products based on bacteria in agricultural production, among which the main objects are representatives of the genus Bacillus, which promote plant growth, control the development of phytopathogens, improve the phytosanitary condition of soils and increase crop yields. Of particular interest is the use of these bacteria in conditions of low precipitation and soil salinity. Biologics developed on the basis of bacilli contribute both to improving plant growth conditions under salt stress, and to obtaining environmentally friendly raw materials and agricultural products. One of the developing areas in crop production in the Astrakhan region is potato production, which is associated with the possibility of obtaining both early potatoes and 2 harvests per year. The purpose of the present study was to study the effect of a biological preparation based on Bacillus atrophaeus VKPM B-11474, isolated from the soils of the Astrakhan region, on the growth and formation processes of early potatoes cultivated in arid climate and irrigated agriculture of the Astrakhan region. A comparative study of liquid and dry forms of a biological preparation based on Bacillus atrophaeus VKPM B-11474 in various processing options for growing early potatoes of the Red Scarlet variety was conducted. As a result of field experiments determined that use of the drug by the method of pre-spraying the bottom of the furrow and two-time Strait at the root of the growing season promotes germination of 14.8 %, decrease in incidence of potato early blight of 51.8 % and thereby increase yield by 19.8 %.