APPLICATION OF PLANT GROWTH REGULATORS ON SOYA BEAN CROPS
There is shown the influence of foliar treatments with plant growth regulators on yield and quality of soybean on mineral and organic backgrounds. Application of plant growth regulators and humic fertilizers in the technology of soya bean cultivation led to increase in grain yield by 20-50% due to the large foliage, strong bushes, number of pods and grain in them, and also to increase grain protein by 4-5% body fat to 7-8%, fiber 10-12%, sugar by 6-9% and starch in 11-19% of dry weight. The highest grain yield of soya bean and its quality wasobserved with the two single treatments of plants during vegetation period with silicon-organic preparation Energy-M in a dose of 15 g/ha on mineral nutrition background - 1,45 t/ha of organic and in - 1,79 t/ha. Humic fertilizers also contributed to the increase in grain yield of soya by 15-25% and improved product quality compared to soil fertility.