Cornuta Y. Agroecological substantiation of use biopreparation for growing flax in terms of left-bank Ukraine Polissya

In the complex agricultural methods of flax cultivation on sod-podzolic soils of light granulometric composition of the left bank Polissya of Ukraine ecologization of cultivation technology plays a major role by optimizing mineral nutrition of plants, application of preparations of biological origin, which are best suited to the biological characteristics of culture, reduce anthropogenic load on the plant communities and promote the formation of the high quality flax maximum yield. The thesis presents the results of studies that have examined the patterns of growth and development of flax, the morphological structure of its stalks, straw and seeds formation under microbial agents and their complex and under treatment of vegetative plants by plant growth regulators a biological origin. The most efficient methods of using microbial preparations, growth-stimulating substances and doses of mineral fertilizers was identified and recommended for production. Higher density fiber flax plants at harvest provides seed inoculation by composition of microbial preparations background economically and environmentally benign fertilizer doses - N15Р30K45. In this variant in the initial phases noted the fastest growth of plants in lift. This ensures the formation of maximum amount of flax per unit area under the left bank Polissya. Our studies have shown that the studied factors influenced the yield of flax straw and seeds. Share participation factors vary depending on the weather conditions during the growing season. The correlation between the characteristics of plant growth and development of fiber flax and yield from seed inoculation by Polymyxobacterin when adding Biolan by spraying crops in the phase of "tree". Application of microbial products and plant growth regulators can significantly improve the economic, energy and environmental efficiency technologies of growing culture.