Vorobyova N. Efficiency of elements of technology of growing early potato in the Right-Bank Forest-Steppe of Ukraine.

Object: the formation of a high level of yield and quality of marketable products potatoes early, depending on the cultivar, pre-treatment biological products and plant growth regulators and method of application of vermicompost in the right-Bank forest-Steppe of Ukraine. Objective: adaptive selection of varieties of domestic and foreign selection and improvement of elements of the technology. Novelty: for the first time enhanced the formation of high early yield and nutritional value of marketable production of early potatoes, depending on the cultivar, developed and applied a method of making vermicompost and determined its effectiveness. Results: Local before planting introduction of biohumus inline was developed and used for the first time. The application of local before planting introduction of biohumus in line for potato varieties Serpanok, Latona and Red Scarlet contributed to early production on 50 day from the mass sprouts 19,7 and 17,2 t/ha. A strong direct correlation between the number of stems and yield (r = 0,83), yield and tuber mass (r = 0,87), leaf area and tuber mass(r = 0,72) was established. According to the above-mentioned elements of improved technologies of new potato growing, energy efficiency ratio was the highest- 2,77, and energy consumption amounted to85485MJ/ha.