Pilyarska O. Productivity of corn hybrid Cross 221M depending on the moisture conditions, fertilizers and plant population in the conditions of Southern Steppe of Ukraine

The object of research - the formation of hybrid maize productivity Cross 221M, depending on moisture conditions, stand density and fertilizer plants under the southern steppes of Ukraine. The purpose of research - scientific substantiation of technological elements of growing corn hybrid cross 221M to improve its productivity under irrigation. Methods of research - analysis, synthesis, observation, comparison, deduction and induction, variance and statistical analysis, analytical, field, laboratory, statistical, graphical, graphic-analytical, settlement and settlement-analytical. The research results - for theory: first for the conditions of South Steppe of Ukraine to dark brown soil medium suhlynkovomu the processes of formation of productivity of hybrid corn Cross 221M depending on moisture conditions, doses of fertilizers and plant stand density. The regularities of growth, development and productivity dynamics forming plants, water features identified maize and efficient use of water for growth and development phases. To practice: The results of the research developed evidence-based recommendations on the technology of growing corn hybrid cross 221M under irrigation southern steppes of Ukraine. The proposed elements of growing technology provide a receipt corn yield at 8.9 t / ha and seed 5-6 t / ha, a high level of economic and energy efficiency. Scope - farms south of Ukraine.