Influence of growth regulators on the yield and quality of potatoes.

The potato is one of the most versatile, accessible and at the same time widespread vegetable crops of the globe, and in particular of the Russian Federation. Today notable can be imagined without it. But despite the plasticity of the potato crop, there are still “white spots” in its production. With late and even return spring and early autumn frosts, the climatic features of Siberia significantly affect the crop’s growing season, preventing it from realising its full potential. Like that of many other crops, potato production is associated with seasonality, and there are often significant losses during cultivation and especially during storage. An important challenge is to protect plants during growth and development by applying innovative, environmentally friendly crop protection and stimulation products. Organomineral growth and development regulators were particularly popular. In the work schemes of application of perspective, organomineral growth regulators in conditions of forest-steppe of Western Siberia were tested and perfected. Their influence on the primary phases of growth and development of potatoes and their maturity, and their influence on biometrical parameters of plants, a phytosanitary condition of crops, a crop capacity, and its safety are established. On average, under the influence of growth regulators Epin-Extra and Zircon, the growing season is shortened by 3-5 days; the spread of diseases is reduced by 1.5-2 times; the yield increases to 8.3 tons per hectare. These studies are confirmed by the calculation of economic efficiency. Thus, the use of these growth regulators provides the level of profitability of production up to 252%.