摘要
在香根草快速生长期间,适时适度的刈割有利于促进香根草的地上部和地下部健康、协调地生长。研究了不同频度和不同时间刈割处理,对香根草发育的影响,结果显示:刈割可以促进茎叶的伸长,茎叶含水量升高;适当频度的刈割可以有效地控制香根草的高度,茎叶变宽厚,延长香根草绿期,保持良好的景观效果,但过度刈割(处理Ⅰ)会使相应的效应下降;在7月中旬至9月中旬香根草快速生长期间刈割1次,不但可以明显增加地上部茎叶的产量,促进地上部分蘖的发生,同时也有利于地下部根系的生长发育,提高根茎比,但不刈割(对照处理Ⅷ)、刈割不及时(处理Ⅶ)或频繁刈割均不利于香根草的健康生长。
The effect of clipping on vetiver （Vetiveria zizanioides） was studied in Nanjing and the results showed that clipping could improve the growth of stem and leaf, and increase the water content of stem and leaf. Clipping with proper frequency could control the height of vetiver,make the leaf broader and thicker,and prolong the green period, However,over-clipping would reduce the positive effect. Clipping during rapid growth period between July 14th to September 15th in Nanjing could significantly increase the and promote the tiller and root development,however,clipping ahead of the rapid growth period or no clipping or heavily clipping would negatively affect the growth of Vetiver.
出处
《草原与草坪》
CAS
2007年第4期82-86,共5页
Grassland and Turf
基金
江苏省环保科技项目(2005012)资助
关键词
香根草
刈割
生长发育
Vetiveria zizanioides
clipping
growth
