Maliarchuk A. Optimization of elements of technology of growing of rape winter on the irrigated earths south of Ukraine

The object of researches is the processes of forming of the modes of agro water and nourishing soil, fitoсenoza weeds and productivity of sowing of rape of winter in the 4-polnoy irrigated crop rotation depending on the elements of technology of growing. The purpose of researches is optimization of methods and depth of basic till of soil and dose of bringing of nitric fertilizers in rannevesennyuyu podpitku for growing of rape of winter. Methods of researches - the field; laboratory; statistical; computation-comparative. Results of researches - For a theory: First on the irrigated earths in the conditions of south of Ukraine a method is scientifically grounded and the depth of basic till of soil and dose of bringing of nitric fertilizers in rannevesennyuyu podpitku on the basis of optimization of the modes of agrofiziki water is set, agricultural chemistry the livery the soils under rape winter. For practice: As a result of researches the technological parameters of growing of rape of winter taking into account economic and power indicators, the measures of creation of favourable properties are offered, nourishing mode and fitosanitarnogo state of sowing of rape of winter are optimized. In the total the increase of productivity is set 0,12 t/ga for abbreviation of fuel from 20 to 12 kg/ga for the rise of level of profitability from 110 to 138%. The sphere of the use is the agricultural enterprises of south of Ukraine.