摘要
羊茅黑麦草和无芒雀麦刈割后叶片再生动态的试验结果表明：这两种禾草刈割后，不同再生期的叶伸长率、萎蔫率、净生长率及叶片发生率间存在着显著差异。刈割强度的影响不显著。留茬高度在５ｃｍ与１０ｃｍ之间，上述各项参数相对稳定。叶片动态对草地管理有重要的实践意义。建议以叶片动态作为刈割和放牧的判断标准之一。
This paper reported the results of the study dynamic of Leaves regrowth in Festuca一ryegrass andsmooth bromegrass swards.The rate of leaves enlongation , rate of leaves senescence,rate of leaves produc-don,the number of green leaves and the rate of leaves appearances were significant between two grass-es. The effect of cutting severity was no significant and the characteristics of leaves turnover was sub-staintable with residual from 5cm to 10cm。 The leaves turnover management is important in pasture man-agement.The results suggested that the dynamic of leaves is a reference for grazing or cutting management,
出处
《草业科学》
CAS
CSCD
北大核心
1995年第1期9-12,共4页
Pratacultural Science
基金
国家自然科学基金
关键词
羊茅黑麦草
无芒雀麦
叶片
草地
Pasture management,leaf,smooth bromegrass,fescul一ryegrass
