摘要
多年生黑麦草和高羊茅刈割后禾草群体再生动态的试验结果表明，在６种留茬高度之间一周干物质生长量无显著差异，两种草亦无显著差异，但９种不同刈割时间之间上述参数表现出显著差异，具有随刈割时间延长而降低的趋势，多年生黑麦草的降低幅度大于高羊茅。据此，建议通过调节刈牧频率适当重刈和重牧。
The experiment was conducted on regrowth of defoliated swards of perennial ryegrass and tall fescue. The results showed that there was no significant differences in weekly dry matter accumulation among 6 cutting heights, nor was there between two species. The 9 cutting times exerted remarkable influences on sward regrowth of the two species, and the ability to regrowth of perennial ryegrass decreased with cutting times more easily than of tall fescue. Therefore, it was suggested that utilization of grassland would be sustainable and effective if cutting or grazing frequency can be reasonably adjusted with appropriate heavy cutting or grazing.
出处
《中国草地》
CSCD
1997年第4期33-36,共4页
Grassland of China
基金
新西兰梅西大学资助
关键词
黑麦草
高羊茅
刈割强度
再生能力
草地管理
Perennial ryegrass,\ Tall fescue,\ Defoliation intensity,\ Regrowth,\ Grassland management
