摘要
2003～2004年在内蒙古西辽河平原进行了刈割次数对紫花苜蓿翌年生长及草产量影响的研究,结果表明:随着刈割次数的增加翌年返青率的下降幅度逐渐增大;刈割次数对翌年各茬草株高、分枝数、干草产量的影响随着刈割茬次的增加而逐渐减小.同时,年内各茬次之间的株高、分枝数、干草产量均存在一定的互补性.综合2年试验结果认为,研究地区灌溉条件下种植紫花苜蓿年内刈割3～4次较为适宜.
The experiment was carried out on the effects of cutting times on growth and yield of alfalfa in the next year from 2003 to 2004 in the plain of West--Liao River in Inner Mongolia in China. The results indicated that the regreen rate had been decreased with the cutting times increased; the effect of cutting times on plant height, branches,and hay yield of alfalfa were decreased with the cutting times increased; there were complementary relationship in the plant height, branches, and hay yield among different cutting times and the stubbles in a year. It is suitable to cut 3-4 times under the irrigated condition in the experiment region in a year.
出处
《中国草地》
CSCD
2005年第5期33-37,共5页
Grassland of China
关键词
刈割次数
返青率
草产量
株高
分枝数
Cutting times
Regreen rate
Hay yield
Plant height
Branches
