随着大规模种草工作的展开,人们对牧草品种的引进和推广愈加迫切。比如,干旱半干旱地区需要引进耐瘠薄,耐干旱,蛋白质含量较高的牧草品种;在低劣的禾草草场上急需补播一些豆科牧草;在农区需要引进生长期短,能增加土壤肥力的牧草来进行粮草间作。但是,怎样选择和引进新品种?如何逐步推广和合理应用?除了引种、栽培和管理技术之外,还有一个值得注意的问题, With the development of large-scale grass-planting, people are more and more urgent to introduce and popularize forage varieties. For example, arid and semi-arid areas need to introduce forage-tolerant, drought-resistant and protein-rich forage varieties; the need for sowing some leguminous forages on poor grassy pastures; the introduction of short growing periods in rural areas to increase soil fertility Forages for intercropping. However, how to choose and introduce new varieties? How to gradually promote and rational application? In addition to the introduction, cultivation and management techniques, there is a noteworthy issue,