Kostyrіa I. Optimization of receptions technology cultivation of a winter wheat in conditions of southern Steppe of Ukraine

An object – is a process of forming productivity and quality of corn winter wheat on predecessors sunflower and black steam at the different level of mineral feed and terms of bringing herbicides in the conditions of south Steppe of Ukraine. Purpose – to ground possibility of the use sunflower as a predecessor for a winter wheat, to explore efficiency of application of herbicides depending on the terms of their bringing, to define the expedient doses of the nitric additional fertilizing economic. Methods – are experiments of the fields. Results: As a result of conducting researches the new are developed and the existent receptions of technology are improved growings of winter wheat, which provide in south Steppe the productivity of high-quality corn on black steam, – 5,0-5,7 t/ha, after a sunflower – 3,0-3,5 t/ha at different meteorological terms. Use of the developed receptions, in particular nitric additional fertilizing and facilities of defence of plants от weeds, since the autumn period of development, depending on a predecessor, allows to stabilize the productivity of winter пшеницй and simultaneously to shorten expenses on its growings. Sphere of use – agriculture.