Lupitko O. Formation of soybean productivity depending on the technological methods of cultivation in the Northern part Steppe of Ukraine

A research object is features of forming of the corn productivity of soy depending on the methods of basic soil tillage and level of mineral feed. A purpose is development of new and improvement of existent agrotechnical receptions of soy growing, establishment of dependence of the corn productivity, from the methods of basic soil tillage and different doses of mineral fertilizers. Methods are the field; laboratory; calculation; statistical. Results: The optimum dose of mineral fertilizers of N30P30K30 is recommended under basic till soil tillage – chizel plowing, there is 25-27 sm on a depth, that provides the increase of the productivity of soy by comparison to ploughing on a depth 25-27 sm on 0,26-0,27 t per hectar. The results of researches are tested in the production conditions of Erastivska experimental station and inculcated in the economies of the Dnipropetrovsk area on an area 400 hectares. An economic effect at introduction provides 510 Uah.per hectar. Novelty – first in the conditions of north part of Steppe of Ukraine investigational complex influence of mineral fertilizers and methods of basic soil tillage on the corn productivity of soy and quality of its grain, economic efficiency and grounded expedience of application of mineral fertilizers is certain in combination with the different methods of soil tillage. Industry is agriculture.