Zhel'azkov O. Formation the productivity and quality of winter wheat grain depending on predecessors, sowing terms and sowing rates in the conditions of Prysyvashsh’a

The object of study - particularity of growth, development and formation of yield and grain quality of winter wheat depending on the predecessors at different planting dates and seeding rate in arid conditions of Prysyvashsh’a. Purpose - is to develop better and more cost-effective agricultural methods of growing the winter wheat when after sunflower, spring barley, as compared with bare fallow, with different planting dates and seeding rates. Methods - Field; laboratory, settlement, the statistical. Results: The results of the studies recommended optimum planting dates and seeding rates of winter wheat varieties Kuyal'nyk when placing on a bare fallow, after the sunflower and spring barley, which provides in arid conditions, to obtain from 4,0 to 6,5 t per ha of grain of high quality. Lower yields in the rejection of the optimal planting dates ranging from 0,27 to 2,0 t per ha. The results tested in production conditions Genichesk Experiment Station and introduced in the farms of Genichesk district of Kherson region on the area of 2,0 ha. The economic effect in the introduction amounted to 185-310 UAH per ha. The novelty - the first time in the Prysyvashsh’a carried out comprehensive studies and improved the planting time and sowing rate, depending on the hydrothermal conditions of the year, the economic efficiency of winter wheat after sunflower, spring barley and fallow. Industry sector - agriculture. Sector – Agriculture.