实行豆科、禾本科和十字花科等多品种牧草混播可比单播增产鲜草30%左右,根茬产量增加50～150.00%,且植株养分含量也有所增。混播中的豆科牧草根瘤增多,固氮性增强,能改善土壤的氮素营养条件;禾本科牧草黑麦草根系发达,植株的C/N比大,有利于提高根茬产量和土壤改良;十字花科的牧草生长快,产草量高,能改善混播牧草的田间小气候,提高产量改善品质。同行混播更有利于发挥各品种的生长优势,使产草量增加7～11%左右。 Implementation of leguminous, gramineous and cruciferous and other multi-species pasturage mixed broadcast than unicast yield of about 30% of fresh grass, stubble yield increased 50 ~ 150.00%, and the plant nutrient content also increased. Nodular grass nodules increased, nitrogen fixation increased, can improve soil nitrogen nutrient conditions; grassland grassland ryegrass developed, C / N ratio of the plant is large, is conducive to improving rootstock yield and soil improvement; cross flower Branch of forage grow fast, high yield, can improve the mixed crop forage field microclimate, improve yield and improve quality. Mixed with peers is more conducive to play a variety of growth advantages, so that the amount of grass increased about 7 ~ 11%.