集约化经营短期利用的人工草地,通常禾本科型草地可利用6—7年,豆科——禾本科型草地4—5年。为了确保每公顷草地的高额产量(0.8—1万饲料单位以上),运用提高无机肥料施用量、灌溉、多次收割或放牧利用草地草层的方法,实践证明是有效的。但是,集约化管理和利用也常常会引起缩短牧草高生产力的持续年限。 Intensive management of short-term use of artificial grassland, usually grasses grassland available 6-7 years, leguminous - grass-type grassland 4-5 years. To ensure high yields (up to 0.8-1 million feed units) per hectare of grassland, practices have been proven to be effective by increasing the application rates of inorganic fertilizers, irrigating, multiple harvesting or grazing on grassy grasses. However, intensive management and use often result in shortened periods of high pasture productivity.