Application of complex fertilizers and biopreparations in organic production of oil flax

The purpose of research is the development of a competitive, adapted to soil and climatic conditions of the Forest-Steppe zone of the western, organic technology for growing oilseed flax. Research methods – hypothesis, experiment, observation, quantitative-weight, field, visual and comparative calculation. Research results. The use of growth stimulants Vitazim, Ascostart Spectrum for flax seed treatment of flax seeds led to an increase in germination of seeds by 4.2-5.2 % . The highest productivity of seeds oil flax (1.34 t / ha) was obtained by using the biostimulant Vitazim (1.0 l / t) for pre-sowing seed treatment. The increase before control was 14.1 %. Other studies have stimulated the growth and development of plants contributed to an increase in the yield of oilseed flax in the range of 9.5-10.9 %. For complex micro-fertilizers this indicator was in the range of 0.08-0.09 t / ha (6.8-7.8 %). Pre-sowing treatment of flax seeds with growth stimulators Spectrum Ascostart, Vitazim, Ecoline Boron, Vympel 2 influenced the increase of oil content in seeds by 0.5-1.4 %. The highest yield of flaxseed oil for growing flax on an organic basis (0.563 t / ha) was obtained using the biostimulant Vitazim. The increase before control was 0.08-0.095 t / ha (17.1-20.3 %) depending on the method of use. Other complex fertilizers and stimulators of plant growth and development provided an increase in oil yield at the level of 0.048–0.092 t / ha (10.3-19.7 %) with the control indicator at 0.468 t / ha. Analysis of the content of heavy metals in oilseed flax seeds using complex micro-fertilizers and growth stimulants indicates its environmental safety. In particular, their content was significantly lower than the MPC: zinc - 11.4-12.7 (MPC - 50 mg / kg), lead - 0.01-0.07 (MPC - 0.3 mg / kg), cadmium - no more 0.010 (MPC - 0.03 mg / kg), copper - 5.9-6.8 (MPC - 10.0 mg / kg). Conclusions. The use of the studied complex micro-fertilizers and growth stimulants in the organic technology of oil flax cultivation helped to increase the length of the growing season, increased germination and reduced plant disease. The use of these drugs for treatment seed and foliar fertilization led to an increase in seed yield by 9.0-21.8 % compared to control (1.1 t / ha) and an increase in content of 0.6-0.9 % and oil yield in within 0.048-0.095 t / ha (10.3-20.8 %).