Kotelnykov D. Scientific substantiation of minimized and zero tillage under different fertilization systems in crop rotation on irrigated lands of southern Ukraine

The object of research ecological and economic substantiation of minimized and no-tillage under different fertilization systems in crop rotation on irrigated lands of the south of Ukraine. The goal There is a development and ecological and economic substantiation of the use of minimized and zero tillage in short-rotation crop rotation on irrigated lands of the South of Ukraine to preserve the fertility of dark chestnut soil and increase crop productivity. Methods - field, laboratory, analytical. Results - obtained in the work are brought to the level of practical application and are used in farms of Kherson region in order to increase agricultural production, preserve and increase the fertility of dark chestnut soils of the irrigation zone of the southern steppe of Ukraine. Introduction into production of various deep tillage with deep chisel loosening under winter grain ears in short-rotational crop rotations against the background of organo-mineral fertilizer systems using by-products and green manures ensured the growth of grain-row crop rotations and contributed to the improvement of ecological condition. Kakhovka, Inguletska irrigation systems and the North Crimean main canal. The novelty of the results consists in the scientific substantiation of agroecological and technological measures in crop rotation on dark chestnut soils of the Southern Steppe of Ukraine in the zone of action of the Kakhovka irrigated system. For the first time for the conditions of the south of Ukraine according to the results of generalization of long-term scientific researches carried out in stationary experiments on dark chestnut medium loam soil under conditions of long irrigation by waters of Kakhovka irrigation system: directions for optimization of technologies of growing crops the ecological and economic influence of minimized and zero systems of main tillage on the productivity of short-rotation crop rotation and fertility of dark-chestnut medium loamy soil is determined. Scientific value - agro-technological measures aimed at reducing the energy intensity of tillage, increasing economic efficiency and environmental safety of short-rotation crop rotations in irrigated conditions of the Kakhovka irrigated system have been improved. Sector is agriculture.