高寒地区优良豆科牧草的筛选及生产性能的研究

Screening and Research on the Productive Performance of Legume Forage Species in Alpine Area

为了缓解高寒牧区冬春季节家畜蛋白饲料缺乏的问题 ,进行了优良豆科牧草的引种栽培及生产性能的研究。结果表明 ,筛选出的甘农 1号杂花苜蓿和陇东苜蓿的干草产量两年平均为 4 930 .3和4 912 .1kg/hm2 ,茎叶比分别为 1∶0 .81和 1∶0 .83,越冬率为 74 .95 %和 71.6 5 %。

In order to alleviate the problems of lacking forage with high protein contents during cold season in alpine grazing area, a plant introduction experiment and research on the productive performance of legume species was carried out. The results shows that: the two years average yield (wind dried ) of forage of the selected elite species of Medicago varia cv.Gan Nong.No.1 and Medicago sativa cv.Long Dong was 4 930.3 kg/hm 2 and 4 912.1 kg/hm 2 , respectively; the stem to leaf ratio was 1∶0.18 and 1∶0.83, respecitvely; and the winter survival rate was 74.95% and 71.69%, respectively.