Kolodii S. Improving the weed protection of corn under different tillage methods in the Right-bank Forest-Steppe of Ukraine

The thesis presents the results of the research of studying features of forming species composition of weeds, weed seeds distribution in the soil layers and change on itssize by different tillage methods, investigated the herbicides efficacy in terms of Rightbank Forest-Steppe of Ukraine. Investigated the effect of different tillage methods and weed control on corn plant growth processes, yield and seed quality. Conducted energetic and economic evaluation of weed control. The results allow to recommend to use plowing or disk tillage with preemergence application of harness, 90 %, 2,5 l/ha with the long-term cultivation of corn in Right-bank Forest-Steppe of Ukraine. With no-till we recommend preseeding application of roundup max, 45 %, 2,5 l/ha, followed by preemergence application of herbicide harness 2,5 l/ha or postemergence application of herbicide stellar, 21 %, 1,25 l/ha with surfactant metolat, 1,25 l/ha which provides 2,43–3,51 t/ha of stored yield.