BIO PRODUCTS FOR BARLEY VEGETATION
The research was aimed at studying the effect of biological products during barley vegetation, to assess the feasibility of their use. The paper presents empirical data on the influence of biological products on barley development, photosynthetic activity, productivity and profitability of production. During the years of the experiments, the temperature regime, distribution and amount of precipitation differed from long-term ones. When using Emistim, barley formed the largest leaf area on the plant (186.9 cm2), which exceeded the control by 223%. Plant survivability ranged from 70.9 to 77.9%. Productive tilling capacity increased by an average of 5-10% in comparison with the control. Treatment of plants with Binoram and Emistim made it possible to form an average of 1.34 productive stems per plant, Vitazim and Biodux - 1.33. The plants formed proper grain (from 44.6 to 46.2 grams of 1000 grains) under the influence of the biological products. Biodux and Binoram brought the opportunity to obtain a mass of grains 2.4 g more than the control. The relationship of productive tilling capacity, weight and yield is strong straight. The correlation of grain in an ear and yield is a strong straight r = 0.917. The increase of barley yield under the influence of biological products is associated, in priority, with the productive stalk (r = 0.959), and not with the grain weight. The highest biological yield was obtained under the influence of Emistim - 3.76 t / ha, which exceeded the control by 1.03 t / ha. Reliability at 95% significance level was noted in all variants. On average, over the years of the experiments, it is most profitable to use the growth regulator Biodux (73%) during the growing season.