Keywords:  additional sowing in grass stand sod, peat soil, ground water level, red clover, botanic composition, yield productivity, crude protein, crude fiber

// Мелиорация. – 2016. – №1(75).– С. 79—84

Clover additional sowing in sod of old age grass stand without its violation forms legume cereal grass stand on peat soils where ground water level is higher than 0.5 meters. After additional sowing the amount of legume species is managed to provide grass stand with biologically fixed nitrogen for two years. Clover additional sowing increases grass stand yield on the average by 97,2% over two years. Also 1 kg of seed gives 11.1 kg of dry mass. Percentage of legume species in grass stand yield decreases by 1.3 times, as clover drop out of grass stand share of legume rises due to foxtail growth. If cereal grass stand turns into legume cereal one due to clover additional sowing value of crude protein will rise, value of crude fiber will decline.