论文部分内容阅读
１９９６年夏季在中国农业大学科学园区对建植４年的草地早熟禾进行了刈割频率和刈割留茬高度对草坪质量指标及影响的试验。结果表明，在每周一次和两次刈割、分别留茬８ｃｍ、６ｃｍ、４ｃｍ的范围内，高频率（每周两次）低留茬高度可减缓草地早熟禾的生长速率，增加草坪单位面积的分蘖数和分蘖枝条的粗壮度，提高草坪的整齐度，减少生殖时期的生殖枝数，从多方面改善草坪质量；低茬刈割使枯草层外露，降低了草坪颜色深度，也影响了草坪的质量；高频率刈割增加了地下生物量的积累，证明草地早熟禾是一种耐刈割的草坪草。
1996 summer in China Agricultural University Science Park on the establishment of four years of Poa pratensis cutting frequency and mowing stubble height of lawn quality indicators and the impact of the experiment. The results showed that the high frequency (twice a week) low stubble height could slow down the growth rate of Kentucky bluegrass and increase the unit area of lawn in the range of 8 cm, 6 cm and 4 cm respectively, The number of tillers and the degree of tillering branches to improve the uniformity of the lawn to reduce reproductive reproductive branch number in many ways to improve the lawn quality; low cropping so that the subsoil exposed, reducing the lawn color depth, but also affect the lawn The high-frequency mowing increased the accumulation of underground biomass, proving that the bluegrass was a mowing lawn grass.