Datsenko A. Physiological bases of use of biological products in buckwheat growing technologies in the Right-bank Forest Steppe of Ukraine.

The thesis is devoted to comprehensive study of the complex influence of various amounts of Diazobakteryn microbiological product and methods of use of Radostim plant growth regulator on physiological and biochemical, anatomical and morphological, and productive changes in the plants of buckwheat and microbiological changes in a soil to justify, develop and introduce environmentally safe measures of complex use of biological products into an industry. The paper has established and scientifically justified the complex use of Diazobakteryn microbiological product with Radostim plant growth regulator, which using significantly activates the passage of key biological processes in plants and soil, which generally leads to increased productivity of seeds and improved quality of buckwheat with a simultaneous increase in economic and bioenergy efficiency of products usage. It has proved that at a complex usage for pre-seeding treatment of mixture of Diazobakteryn microbiological product at 175-200 ml per hectare norm of seeds with Radostim plant growth regulator at 250 ml/t, the usage of Radostim plant growth regulator at 50 ml/ha for the next spraying of these seeds promotes formation of highly productive crops of buckwheat with proper quality of grown products. Based on the research results the scientifically grounded, environmentally safe and economically feasible measures in complex usage of Diazobakteryn microbiological product and Radostim plant growth regulator have been developed providing a significant increase in the crop yield capacity.