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，达到草地持续高效利用的目的 The results showed that there was no significant difference in the growth of dry matter between the six stubble heights and no significant difference between the two kinds of grass, but there were 9 different mow The above parameters showed significant differences between cutting time, with the trend of reducing the cutting time, perennial ryegrass decreased more than tall fescue. Accordingly, it is suggested that by adjusting the frequency of grazing appropriate grazing and heavy grazing, grassland to achieve the purpose of sustained and efficient use