Korhova M. The productivity of soft winter wheat depending on sowing terms and seed rates in the conditions of Southern Steppe of Ukraine

The object of researches is Processes of growth, development, forming of productivity and quality of corn of new varieties of wheat of winter depending on the explored factors in the conditions of South Steppe of Ukraine. The purpose of researches is the improvement of basic elements of technology of growing of wheat of winter for the area of the insufficient moistening of South Steppe of Ukraine. Methods of researches - the field; measuring-gravimetric; laboratory; statistical; comparative-computation. Results of researches - For a theory: First for South Steppe of Ukraine the best term of sowing of wheat of winter is grounded the Podolyanka sorts, chain Mail, haying Season, Natalia and Blagodarka Odessa comparatively with before recommended, that are based on data of temperature condition and reaction of plants on the change of terms of environment. For practice: The optimum term of sowing of wheat of winter, which provides the receipt over 5,0 t/ga high-quality corn at different meteorological terms, is definite. The sphere of the use is the agricultural enterprises of south of Ukraine.