摘要
在受蝗虫危害的草地上放牧７０日龄雄鸡群研究了牧鸡防治草地蝗虫的技术与效果。结果表明，三年牧鸡灭蝗面积９８６７ｈｍ２，平均灭效９６．２％，投入产出比１：４．０４。
To day old chicken were raised in the grassland areas which hane high grasshopper densities. After three years, 9876hm 2 grassland area was under the control by the chicken form the grasshopper diasters. The controll efficiency cauld reach 96.2%. The ratio of input to output was 1:4.04. Some techniques and managemental skills were introduced in the paper.
出处
《中国草地》
CSCD
1997年第4期40-42,共3页
Grassland of China
关键词
放牧鸡群
生物防治
草地
蝗虫
Chicken raising in grassland,\ Biological control,\ Grasshopper
