Productivity of perennial agrophytocenosis depending on the content of grass mixtures and regime of their use

Abstract

The purpose. To study effect of the content of grass mixtures and regime of their use upon the yield of dry matter and botanical content of total plant weight for legume-cereal grass stands. Methods. Field and laboratory probes. Results. In conditions of South part of Western Forest-steppe on downslopes with acid and low natural fertility soils the most productive was the grass mixture of lotus (Lótus corniculátus), 10 million/hectare viable seeds, with fescue (Festuca arundinacea), 2,1 million/hectare viable seeds, which ensured an exit of dry matter in size of 7,13 t/hectare at 3-hay cutting use of grass stand. Thus the share of lotus in total plant weight of the 1-st hay cutting made 47,1 – 50,9%, of the 2 – nd — 57,3 – 63,2%, and of the 3-rd hay cutting — 45 – 48,4 %. Conclusions. For effective use of slope lands it is necessary to cultivate grass mixture of lotus with fescue at 3-hay cutting regime.