OPTIMIZATION OF THE SOY FERTILIZATION SYSTEM BASED ON THE USE OF DRUGS OF BIOLOGICAL ORIGIN IN THE CONDITIONS OF THE RIGHT BANK

Abstract

This article presents the results of research to study the effect of drugs of biological origin, namely the inoculum Rhizolin, mycorrhizal drug Mycofriend and biofertilizers based on phosphorus-potassium mobilizing bacteria Groundfix on growth processes and the formation of soybean varieties. Field studies were supposed to study the effect of various combinations of studied biological drugs in order to determine the most effective model of their use. Based on the observations and calculations, it was established that in the conditions of the Forest-Steppe of the right bank on gray forest soils the studied preparations of biological origin had a direct impact on both plant growth processes and productivity formation. It was found that the height of plants in the experiment varied depending on the variety and application of biological products, the most effective was the integrated use of Rizoline + Mycofriend + Graunfix, under these conditions the height of soybean plants in Madison was 121.6 cm, in Golden - 104.6 Along with this, a positive effect of this combination of biological preparations on the formation of individual plant productivity was established, so the highest number of beans per plant was recorded in these variants - 42.1 pieces / plant in the Golden variety and 39.5 pieces / plant in Madison variety and the largest mass of seeds from the plant, respectively - 10.4-11.9 g. ). In the variants with the use of seed treatment with the composition Risoline + Mycofriend and the application of soil biofertilizer Graunfix, these figures were 132.5 and 129.3 g, respectively. The complex application of biological products Rizoline (3 l / t of seeds), Mykofriend (1.5 l / t of seeds) and Graunfix (5 l / ha in pre-sowing cultivation) ensured the formation of the highest grain yield in the experiment of 4.05 t / ha in the variety Madison and 3.88 t / ha in the variety Golden, with the increase in yield before control was 17.9-18.1%.