摘要
通过在高寒草甸草场上施用内吸性除草剂2,4—D丁酯防除杂草的试验,证明该除草剂可以改变草场植物群落的组成,起到减缓草场退化、抵御杂草入侵的作用,一定程度上控制了害鼠对草场的入侵强度。施药剂量适宜时可提高牧草产量47％,使杂草在量上减少70.62％。经济效益也十分显著,每亩投入1.10元,产出值可达7.90元。
By the experiments of using endo-absorb herbicide 2,4-D to control the weeds, we proved the possibility in alpine meadow. Using the herbicide we can change the composition of plants community in the meadow, slow down the degradation and deterioration occurred in the meadow, resist the invasion of weeds and control the invasing degree of plateau zokors. If using the herbicide appropriately, it could raise the yield of herbage by 1100kg/ha and reduce the output of weeds by 830kg/ha. Spending 6 Yuan(RMB) per ha, we could get profit by 118.5 Yuan(RMB)from it. That's to say the economic benefitial result is very remarkable.
出处
《中国草地》
CSCD
1991年第5期50-53,共4页
Grassland of China
