鹰嘴紫云英头茬草生产性能的研究

Study on The Productive Performance of Cicer Milkvetch

通过对杨凌地区生长的鹰嘴紫云英(Astragalus cicer L.)的株高、株长、产量、草层结构、鲜干比、茎叶比等的研究表明:生长第二年第一茬初花期时刈割的鹰嘴紫云英平均株高达57 cm,株长达102 cm,鲜草产量达47 077.6 kg/hm2,干草产量8 702.0 kg/hm2,其茎、叶主要分布在0～40cm的草层中,茎、叶鲜重分别占到总重量的52.39%和31.88%,鲜干比为5.41:1,茎叶比为1.47:1,属典型的下繁型牧草,具产草量高、营养丰富、牧草品质好等优点,是值得推广的优良牧草.

Cicer milkvetch （ Astragalus cicer L. ）is a non-bloating perennial legume adaped to the northern region of China,which has strong cold and drought resistance and pests and diseases resistance and has high forage quality. Through the studying on the second year＇s forage yield,grass-layer structure,fresh to dry ratio,stem to leaf ratio of the forst cutting cicer milkvetch in Yangling,we found it was a good hebage. The results showed that the average plant height was 57 cm,the plant length was 102 cm,the fresh forage yield was 47 077.6kg/hm^2 and the dry yield was 8 702.0 kg/hm^2. Most of the stems and leaves are in 0-40 cm,the weight of stems and leaves are 52.39% and 31, 88% to all grass weight. The ratio of fresh to dry was 5.41 ： 1 ,the ratio of stem to leaf was 1.47 ： 1. Cicer milkvetch is a high yield and high quality forage.