五种高禾草在高寒地区生产性状的比较  

Comparison of Performance of 5 Species of Tall Grass in Alpine-Cold Area

作　　者：包成兰 

机构地区：[1]青海省大通县草原管理站,大通810100

出　　处：《青海畜牧兽医杂志》2003年第1期3-4,共2页Chinese Qinghai Journal of Animal and Veterinary Sciences

基　　金：青海省畜牧兽医科学院草原所"原种繁殖及其种繁推广体系建设"课题一部分

摘　　要：三年的试验结果表明:5种高禾草在试种地区均能安全越冬,细茎冰草、绒毛冰草、多叶老芒麦、短芒老芒麦和无芒雀麦种植后第二、三年平均鲜草产量分别为24.05,11.51,25.52,24.40和23.63t/hm2,平均产籽量分别为1.158,0.000,0.977,1.024和0.652t/hm2,叶片占总重的比例分别为27.8％,22.4％,28.9％,24.8％和30.4％。除绒毛冰草因产草量和叶量较低,且种子不能成熟,不适于在该地区种植外,其余4种均可种植。5 species of tall grass had been planted for three years to compare their performance in Datong County.The result indicated that all 5 species of tall grass passed through winter safely. The average fresh grass yield of the second and the third year of Agropyron trachycaulum, A. trichophonum, Elynus sibiricus , E. breviaristatum, Bromus inermis was 24. 05, 11. 51, 25. 52, 24.40 and 23. 63t/hm2; the average seed yield was 1.158, 0.000,0.977,1.024 and 0.625t/hm2 respectively; the proportion of leaf to total grass was 27.8% ,22.4% ,28.9% ,24. 8% and 30.4% respectively. 4 species of tall grass could be planted in the area except. A. trichophorum, which had low grass and leaf yield with no mature seed.

关 键 词：高禾草 高寒地区 生产性状 牧草 生育期 

分 类 号：S54[农业科学—作物学]