Polutin O. Development and optimization of elements of the technology of Tomatillo cultivation (Physalis ixocarpa brot. ex Нornem) in the Right–bank Forest–steppe of Ukraine

The dissertation is devoted to the issues of development of the technology of growing the Tomatillo in the Right-bank Forest-steppe of Ukraine. The patterns of formation of a high level of productivity due to the evaluation of the economic and biological characteristics of the varieties, the effectiveness of seed treatment before sowing by physical or biological factors, the timing of planting seedlings in open soil, the effect of mulch materials on the overall yield and fruitiness of the fruits, optimal schemes for planting seedlings of the fissile of the glued-fruit plant. In the Forest-steppe of the Right-bank Ukraine, the high yield of commodity products is ensured by the type of Likhtaryk – 28,1 t/ha, where the conditional net profit can be obtained at UAH 18,4 thousand, as well as Ananasovyy and Korolok varieties, for the seedling method of cultivation, yield can be – 30,6–32,0 t/ha, where the conditional net profit is 20,9–25,2 thousand UAH, Kbe – 2,1–3,3. An increase in the yield of fruits is possible from the application of a magnetic field, a tension of 50 E, for 12 hours and a solution of the Baikal EM-1, with a dose of 1,0 l/kg for pre-planting, where the total yield increases to 31,2–33,0 t/ha. The level of profitability for the use of the magnetic field in the class of Likhtaryk is 41,7 %, Kbе – 1,2. Tomatillo put out to form early high fruit yields for planting seedlings in the third decade of April and in the decade of May with the age of seedlings 60 days under temporary tunnel shelters. The amount of crop is increased to 31,9–33,4 t/ha. For the specified period of planting, the conditional net profit is 23,4–26,5 thousand UAH, Kbe is 1,2–2,4, and planting of seedlings in the III decade of May with the age of seedlings of 60 days without the use of film tunnel housings ensures harvest at the level to 31,3–31,9 t/ha, where the conditional net profit makes 20,5–23,8 thousand UAH. For the use of agricultural fibers of white or black polyethylene film during the cultivation of the variety, yield increases to 32,7–33,2 t/ha. The level of profitability is 45,5–45,8 %, and Kbe – 1,3–2,4. Application of the seedlings 70x70 cm. The value can increase to 33,8–34,0 t/ha. Conditional net profit is 26,3–28,4 thousand UAH, and Kbe – 1,3–2,4. Key words: tomatillo, varietal studing, pre-sowing seed treatment, planting time, age seedlings, mulching materials, planting schemes.