摘要
通过洞庭湖稻区水稻田的害鼠群落和害鼠对水稻损失量的调查,用多元回归方法建立了水稻损失量和害鼠密度的关系模型:Y=0.0674X1+0.0307X2-0.1627,并计算当地水稻经济允许损失水平L=0.1317%,据此可确定稻田害鼠复合防治指标,并算出单种害鼠的防治指标(夹夜捕获率):东方田鼠为4.37%,黑线姬鼠为9.59%
This paper reporls the study on the multiple control criteria of pest rodent in Dongting Lake rice areas. The result shows both the density of pest rodent( Apodemus agrarius and Microtus fortis) and loss of rice yield are positively relative. The regression equation is Y=0 0674X 1+0 0307X 2-0 1627(X 1—the density of Apodemus agrarius,X 2—the density of Microtus fortis). The economic permissible loss of rice yield is 0.1317%. The control should be begun when the density of A. agrarius was 9.59% and M. fortis was 4.37%.
出处
《农业现代化研究》
CSCD
北大核心
1997年第3期185-187,共3页
Research of Agricultural Modernization
基金
国家"八五"科技攻关85-10-01-06-04子专题
关键词
东方田鼠
黑线姬鼠
防治
稻区
洞庭湖
害鼠
Microtus fortis, Apodemus agrarius, multiple regression, multiple control criteria.