多年生禾本科牧草是天然草地尤其是草原类型草地的优势建群草,对草地的质量与利用起着决定性作用。耐牧性较豆科牧草强,利用采食率也优于其他草类。其寿命一般较长,对天然草地的长期利用和栽培永久性人工草地是不可缺少的组成成分。调制干草或青贮比其他草类容易得多,光能利用率大于豆科等双子叶类牧草,养分含量较全面而均匀,仅蛋白质和钙的含量低子豆科草类,而碳水化合物却显著高于其它草类,是草食家畜的主要能量饲料。一般情况下,多年生禾本科牧草单播的产草量较低。因此,国内外单播的很少,采用禾、豆几种牧草混播, Perennial grass is a natural grassland, grassland type grassland in particular the advantages of building grass, grassland quality and play a decisive role. Durability than pasture leguminous pasture, the use of feed intake is also superior to other grasses. Its longer life expectancy, long-term use of natural grass and permanent artificial grassland cultivation is an indispensable component. Modulation of hay or silage is much easier than other grasses, light utilization is greater than the dicotyledonous forage grass, nutrient content is more comprehensive and uniform, only the content of protein and calcium subfamily grass subtilis, and carbohydrates was significant Higher than other grasses, is the main energy feed for herbivores. Under normal circumstances, perennial grasses grass unicast yield lower. Therefore, very few unicast at home and abroad, the use of Wo, beans mixed with several pastures,