Sokolovs'ka І. Influence Nature-climatic and agrotechnical conditions on formation of productivity corn Stigmata Maydis in conditions of Northern steppe of Ukraine

Object - technology of cultivation of corn Stigmata May-dis. The purpose - definition of influence of soil-climatic and agrotechnical conditions of cultivation of plants of corn on growth, development and formation of a crop of Stigmata Maydis grades and hybrids of different subspecies of corn in conditions of northern Steppe of Ukraine. Methods - field, laboratory-field, laboratory; theoretical: comparison, the analysis, a parity, synthesis; statistical: disperse, the analysis, settlement-comparative. Results - for the first time in condi-tions of northern Steppe of Ukraine have been certain fea-tures of formation of a crop of corn Stigmata Maydis and their technological features of grades and hybrids of different subspecies of corn, the economic estimation of manufacture of corn Stigmata Maydis is given. It is recommended to make gathering columns in crops of sugar or bursting corn during a dairy condition of grain or from crops of corn on a green forage with a delay of flowering метелки 5-10 days. Sphere of application - cultivation of corn on food needs, grain and a green forage.