川西北高寒牧区紫花苜蓿和披碱草生产性能研究

Study on Alfalfa and Elymus dahuricus Productivities in the Alpine Pastoral Areas of Northwestern Sichuan Province

为了探讨紫花苜蓿(Medicago sativa)与披碱草(Elymus dahuricus)在川西北高寒牧区生产性能,采用田间小区试验的方法,对‘特瑞'、‘四季绿'、‘威可'3个紫花苜蓿和‘甘孜'披碱草连续6年(2004—2009)进行产草量测定。结果表明:紫花苜蓿在该地区种植产量高,连续5年(当年除外),其鲜草产量和干草产量分别与披碱草年度鲜草、干草产量有极显著差异(P<0.01),因此,值得在本区推广种植紫花苜蓿。

Production performance traits of ＇Teifeata＇,＇Siriver＇ and ＇ Verko＇ varieties of alfalfa（Medicago sativa）and Ganzi varieties of Elymus（Elymus dahuricus）in the alpine pastoral areas of northwestern Sichuan were investigated and observed during 2004-2009 in field plots.Alfalfa plant had high yield in the region for 5 consecutive years.The fresh yield and hay yield of alfalfa had significant difference from that of Elymus（P〈0.01）.Therefore,alfalfa is worth planting in the area.