摘要
本文报道了利用高强度放牧控制黑麦草─—白三叶草地蛴螬种群数量的研究。绵羊的短期高强度放牧对蛴螬种群数量有显著的影响，并且随放牧强度的增加虫口密度呈下降趋势。根据试验结果，初步确定每公顷３０００只羊（放牧４天）的放牧强度不仅对蛴螬有较高的杀伤率，而且对草地有良好的恢复作用。
The paper reported by the present is a field study on grass grub control by intensive stocking rate ofsheep on a robbing scale onto the ryegrass(Lolium peeene L.)and white clover(Trifolium repens L.)mixedpasture in the West Guizhou Highland Area.Shorttern intensive stocking rate of sheep had a significant e-ffect on grass grub population dynamics,with decreasing trend in population whenever high stocking rateswere imposed somewhat.It was proved that the stocking rate of 3000 sheep/hm￣2/day for 4 days in treat-ment had the most beneficial killing effect on the insect pest and meatimely the better potential for the recov-ery of the damaged pasture d uring our observation.
出处
《草业学报》
CSCD
1995年第1期30-35,80,共7页
Acta Prataculturae Sinica
基金
"八五"国家科技攻关项目
关键词
放牧强度
黑麦
白三叶草地
蛴螬种群
草地
Stocking rate,ryegrass and white clover pasture,grub population
