Derjaga E. Technological manners of the optimisation in the growing of maize hybrids of different maturity groups in the eastern Steppe

Object - Technological manners of the optimisation in the growing of maize hybrids - the depth of the soil cultivation, terms of sowing, the density of plants. The purpose - optimization of technological receptions of cultivation of hybrids of corn of different groups maturity in east part of northern Steppe and definition of biotypes most adapted to conditions of external environment. Methods - field and laboratory-field experiences. Used scientific methods: hypotheses, dialectic, method of synthesis, analysis, induction, mathematical statistics. Results: for the first time in east part of northern Steppe optimum terms of sowing and density of plants of new hybrids of corn Slavutich 162 CRf, Lugansky 222 CRf and Dneprovsky 345 CRf are established. The level of influence of fine processing of ground is determined in connection with terms of sowing on growth, development both formation of efficiency of plants and degree adaption of hybrids to adverse conditions. The results of researches are checked up under production conditions and are introduced in facilities of Lugansk area