Yunik A. 3. The Features of Winter Wheat Efficiency Formation depending on Predecessor and Soil Tillage in the Crop Rotation of a Right-Bank Forest-Steppe of Ukraine.

3. The object of researches is productive process, growth and development of a winter wheat. The purpose of researches - to reveal features of formation of efficiency of a winter wheat depending on predecessors that processing's ground in a grain of a beet crop rotation on herbicidal and without herbicidal background. Methods of researches standard. Results authentic are confirmed with the complex mathematical analysis. An innovation of researches in studying laws of formation of efficiency of a winter wheat after different predecessors on a background long (during 19 years) uses of different processing of ground that of herbicides in a grain a beet crop rotation. It is confirmed and is recommended to introduction in crop rotations differential variable - depth mould - board tillage system of the basic processing of ground in a crop rotation, which promotes optimization of conditions of formation of high productivity of a grain of a winter wheat. Results of researches are introduced on 190 hectares. Sphere of use of results - an agriculture, plant growing, scientific process.