The eroded slopes alkalization peculiarities in southern part of western Forest Steppe

A significant part of arable lands on slopes is subject to removal from active processing, and alkalization with perennial herbs. We know that the most productive are those agro-phytocenoses, forming based a single-species sowing alfalfa (Lucerne), its mixture cereal grasses. However, restrictive factor alfalfa-cereal grasslands high productivity soil solution acid reaction. The research carried out in 2017–2020 showed lime application has significantly affected Almost all variants liming, values approached neutral. Besides, liming was an effective researched increase. So, herbal mixture: red clover + timothy grass, background without introducing phosphorus-potassium fertilizers, averagely for provided output 5,93 t/ ha dry matter. On deacidified plots, given increased 7,52 t/ha combination fertilizers supplied maximum matter smooth bromegrass – 8,66 t/ha, which exceeded by 27,5 % unfertilized variant. chemical melioration have proved be important factors increasing leguminous components botanical component green mass yield. Particularly, bromegrass, limed fertilized background, first second mowings 20,9 17,4 %, respectively. Thus, legume-cereal four years usage provide 5,93–8,66 output, containing 32–63,8 component. melioration, as well 27,5–27,9 enlarged 17,4–20,9 %. Key words: sloping lands, mixture, productivity, composition.