摘要
春季是农田灭鼠的最佳时期,毒杀效果高达90％以上,持效期长(10个月),回升速度慢,经济效益高。采用模糊规划原理对因子进行系统分析的结果也与上述情况一致。
Spring (March) is the best period for rat control because more than 90% of individuals can be killed by baits. During 10 months there will be lower population density, lower re-increasing of population density and highier efficiency of-economy that seeds, seedling planted in autum and spring and havesting crops in summer are kept out of rats damage. 'Fuzzy Math. Project' with multi-varables proves the results above.
出处
《西南农业大学学报（自然科学版）》
CSCD
1989年第2期143-146,共4页
Journal of Southwest Agricultural University
关键词
鼠
防治
防治时间
农田
rodentia
preventive treatments
time optimal
/far mland.
