西藏野生披碱草属牧草（Elymus nutans）栽培试验研究

本试验于2006年在拉萨当雄、那曲和山南鲁琼采集了耐寒、耐旱的优质野生披碱草种。2007年，在西藏大学新校区试验田对其进行了大田栽培，观察披碱草的物候期、生长势，并对其生物量、营养成分等进行统计比较分析。结果表明：野生披碱草，在人工种植条件下生长旺盛，生产性能好，品质优良，营养丰富，如果进行大面积推广种植，建立人工草场，可在西藏提供优质饲料，大大缓解冷季牧场的压力，对促进西藏畜牧业可持续发展，维持生态平衡等具有重要意义。

Research on Cultivation Experiment of Elymus nutans

The frost-resisting and drought-enduring Elymus nutans seeds were collected from Damxung County, Nagchu and Rumchun in Lhokar in 2006. The seeds were cultivated in an experimental field in the new campus of Tibet University in 2007. The phenology and the growing potential of Elymus nutans were observed and the biomass and nutrient component of Elymus nutans were analyzed statistically. The results showed that under artificial cultivation Elymus nutans grew well with excellent productivity and quality, and rich in nutrition. If the artificial cultivation be extended largely and build artificial pastures, it can provide good quality forage and can mitigate the grazing pressure in cold seasons, and is of great significance to promote the sustainable development of animal husbandry and maintaining the ecological balance in Tibet.