Malyarchuk M. Agroecological grounds of the basic soil cultivation in crop rotations on the reclaimed lands of the southern Steppe of Ukraine

Subject of research - the process of crop productivity formation when growing in the conditions of the southern Steppe of Ukraine on irrigated and non-irrigated lands; The aim - to develop the new basic reclamative soil cultivation systems to improve the existing ones which will secure the preservation of its fertility and the increase in output of agricultural produce on irrigated and slopping lands; The methods are field, laboratory, mathematical and statistical, computational; Theoretical, practical results and novelty - the directions of resources saving and fertility preservation of reclamative lands of the agricultural purpose at the expense of optimization of physical and chemical, biological, phytosanitary state of soil in various agrocenoses when long-term using basic soil cultivation systems with turn and without it are theoretically substantiated; The improved crop grwing technology ensures the productivity of crop and row-crop irrigated rotations within the limits of 120-145 hkg/ha of feedunits, that of grass-arable rotation on medium-washed-out soils of slopes - 24,3-25,2 hkg/ha of feed units; Introduktion - the developed agrotechnical measures of agrophytocenosis functioning efficiency raising in southern region are introduced over an area 1,5 mill. ha irrigated and slopping kands of the zone; Field of application - agriculture.