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当前位置: 首页 > 文章 > 在施肥和不施肥条件下刈割频度和强度对红三叶和鸭茅混播草地生产力的影响 草业科学 1996 (3) 23-28
Position: Home > Articles > EFFECT OF FREQUENCY AND INTENSITY OF CUTTING ON PRODUCTIVITY OF A PASTURE OF RED CLOVER AND ORCHARDGRASS UNDER APPLYING AND NOT FERTILIZER Pratacultural Science 1996 (3) 23-28

在施肥和不施肥条件下刈割频度和强度对红三叶和鸭茅混播草地生产力的影响

作  者：
樊江文
单  位：
中国科学院自然资源综合考察委员会
关键词：
红三叶;鸭茅;刈割频度;刈割强度
摘  要：
本试验在施肥和不施肥条件下,刈割频度(刈割2和4次)和刈割强度(留茬2和8cm)对红三叶和鸭茅混播草地生产力的影响进行了研究。结果表明,一般刈割次数多,则牧草的茬平均分枝(蘖)数少,而累计分枝(蘖)数多;刈割次数少,则茬平均分枝(蘖)数多,而年累计分枝(蘖)数少。留茬高,则茬平均和累计分枝(蘖)数均多;留茬低,则茬平均和累计分枝(蘖)数均少。同时在相同刈割频率下,留茬高度对红三叶分枝的影响相对明显;在相同留茬高度情况下,鸭茅累计分蘖数随刈割次数增加而增多的幅度比红三叶大。在留茬低,刈割次数多的处理中,红三叶产草量相对比其它处理较高,而鸭茅产量受刈割影响而变化的幅度较小。一般刈割次数对牧草的影响大于留茬高度。施肥对于刈割频繁、留茬低处理的影响更大,同时红三叶对施肥的反应相对比鸭茅明显。红三叶各茬草产量比重在刈割4次的处理中具双峰曲线特征,而鸭茅具单峰曲线规律,同时一般在刈割次数少,留茬高的处理中红三叶的产量比重较低,而鸭茅则较高。各处理刈割后对牧草第二年的生长均未有明显不良影响。
译  名：
EFFECT OF FREQUENCY AND INTENSITY OF CUTTING ON PRODUCTIVITY OF A PASTURE OF RED CLOVER AND ORCHARDGRASS UNDER APPLYING AND NOT FERTILIZER
作  者：
Fan Jiangwen (Commisson for Integrated Survey of Natural Resources, Chinese Academy of Sciences, Beijing 100101)
关键词：
Red clover;;orchardgrass;;cutting frequency;;cutting intensity
摘  要：
It was studied to the effects of cutting frequency(2 and 4 times)and cutting intensity(stub- ble 2 and 8cm)on productivity of red clover and orchardgrass under applying or not fertilizer in this paper.The results showed the herbage mean tillers of every cutting less and accumulative to- tal tillers of the year more if cutting frequent;and mean tillers more and accumulative total tillers less if cutting times less.Both of mean and accumulative total tillers will be more if stubble high and the both will be less if stubble low.Meanwhile,the effect of stubble to red clover was clearer than to orchardgrass in the same cutting frequency,and accumulative total tillers of orchardgrass increased more than that of red clover in the same cutting hieght.The yield of red clover was higher in the treatments of low stubble and c.utting frequent than in other treatments,but the yield of orchardgrass changed little with cutting.The effect of cutting frequency was greater than that of cutting hieght.The effect of applying fertilizer was clear in the treatments of cutting fre- quent and low stubble,and the response of red clover to fertilizer was clearer than that of or- chardgrass.It had characteristic of double and single peak respectively to seasonal yield of red clover and orchardgrass in the treatments of 4 times cutting,the yield proportion of red clover was low and that of orchardgrass was high in the treatments of cutting times less and stubble high.The growth of herbage was not be effected in the second year under first year cutting.

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