RESPONSIVENESS OF SPRING BARLEY VARIETY ZNATNY TO THE USE OF BIOLOGICAL PRODUCTS IN THE RYAZAN REGION

Spring barley production is strategically important for the development of agriculture in the Non-Black Earth Zone of Russia. In recent years, technologies using biopreparations have been developed to increase the yield and quality of grown products. The studies were conducted in 2022-2024 on the experimental field of the Institute of Seed farming and Agrotechnologies - branch of the Federal State Budgetary Scientific Institution Federal Scientific Center for All-Russian Agronomic Research. The article presents the results of a three-year study of the responsiveness of spring barley of the Znatny variety to biopreparations in the Ryazan region. The following elements were included in the cultivation technology of spring barley of the Znatny variety: microbiological preparations Organit N, Zh, Organit P, Zh, silicon-containing growth regulator ApaSil, P, for pre-sowing seed treatment and foliar feeding according to the crop development phases, according to the experimental design. Also, as an element of the technology, the effect of chemical preparations in pure form (option No. 2) and a mixture with these agrochemicals (options No. 3 and No. 4) were studied. The number of plants in the variants with the use of chemical and biological preparations exceeded the number of plants in the control by 24...41 pcs/m2. The use of technology elements had a positive effect on the ear length, grain weight per ear, and 1000-grain weight. Their values increased by 5.8...9.0, 4.0...4.8, and 4.8...7.9%, respectively. It was found that, on average, over three years, the crop yield increased by 110.4-122.9% from the use of preparations. Conditionally net income was obtained from 3914 to 9258 rubles/ha.