Relevance . Of particular interest are all kinds of biologically active drugs that have a wide range of beneficial properties: adaptogenic and immunomodulatory, growth-stimulating and stress-resistant. Unlike chemicals, biologics have a more pronounced selectivity of action, they are recognized as harmless to humans and animals, and decompose rapidly in the soil. Methods . In the experimental scheme, the microbiological preparations “Organit N, ZH”, “Organit R, Zh” and the growth regulator “ApaSil, P” were studied. The research was carried out in 2022–2024 on the fields of the institute. The predecessor is winter wheat. The seeding rate is 5.0 million germinating seeds per 1 hectare. Results . It was found that the testing of biological preparations on barley crops in the NonChernozem zone had a positive effect on its growth and development. In the variants with the use of biological preparations, the safety of plants for harvesting was 91.6–92.9%, which was 2.3–3.6% higher than the economic variant and 4.4–5.7% higher than the control variant, which showed that, on average, the productivity of spring barley of the Yaromir variety increased by 9.0–18.2% over three years. In variants with the use of drugs, there is an increase in grain size by 28–59 g/l. Conditional net income based on the results of three-year tests was obtained from 3914 rubles/ha to 7958 rubles/ha.
Захарова et al. (Thu,) studied this question.