不同修剪方式对黑麦草叶绿素、根系活力的影响

以多年生黑麦草卓越为试材,研究了7种不同修剪方式下草坪黑麦草的叶绿素含量和根系活力变化。结果表明,不同修剪方式均能影响黑麦草叶绿素含量和根系活力的变化,但是不同修剪方式的影响程度不同。两周修剪一次的修剪频度下,修剪1/2高度处理的黑麦草叶绿素含量和根系活力均最高;四周修剪一次的修剪频度下,修剪2/3高度和修剪1/2高度处理的叶绿素含量较高,修剪1/2高度和修剪1/3高度处理的根系活力高于另一个高度和不修剪的根系活力。欲获得较好的草坪质量,黑麦草的修剪应采用"两周修剪一次+修剪1/2高度"和"四周修剪一次+修剪1/2高度"的修剪方式。

Effect of different mowing methods on chlorophyll content and root activity in Lolium perenne

The experiment was carried out to study the effects of seven different mowing methods on chlorophyll content and root activity with the Lolium perenne eminent.The results showed that all seven methods could affect the chlorophyll content and root activity of Lolium perenne,but the affeced level was not equal.Under 1/2 height in every two weeks treatment,the chlorophyll content and root activity of Lolium perenne were highest.The chlorophyll content of Lolium perenne treated by 1/2 height and 2/3 height in every four weeks were higher than others.Be treated in every four weeks mowing frequency,the root activities of 1/2 height and 1/3 height treatment were higher than 2/3 height and no mowing.The optimal mowing methods were 1/2 height in every two weeks and 1/2 height in every four weeks in order to gain better turf grass quality of Lolium perenne.