高寒地区豆科牧草引种试验

Studies on Introduction of Legumes in Alpine Region.

在天祝县金强河地区的引种试验结果表明 ,18份引种材料中草原绿色豌豆、770 5豌豆和无叶豌豆等一年生豆科牧草出苗早、生长速度快、产草量高 ,是较为理想的引种材料 ;二年生豆科牧草黄花草木樨和白花草木樨第 1年的经济性状与一年生豆科牧草相当 ,可以用其代替某些一年生豆科牧草 ;多年生豆科牧草越冬率极低 ,不适合该地种植 。

The studies on introduction of legumes were done in Jingqianghe area from Spring, 1998 to Spring, 1999. The results showed that among 18 introduced species/varieties, Grassland Green Pea, No.7705 Pea and Leafless Pea were the ideal annual legumes in this region for its early seedling, rapid growth rate and high grass yield. In terms of primary yield, two year legume ( melilotus ) were alternatives to some annual legumes. All the introduced perennial legumes were unsuitable to be cultivated in this region due to their low overwintering rate. The more breeding research on high overwintering rate of legumes are required in alpine region.