摘要
本文从稻纵卷叶螟的Leslie模型出发,引入控制变量,建立状态方程和目标函数,给出了目标函数中挽回经济损失函数的数学表达式,并通过数值计算得到防治稻纵卷叶螟幼虫的经济阈值。
Based on Leslie model of rice leaf-roller, the control variables are introduced, the state equations and objective function are developed and the expression of saving economic loss function in the objective function is presented.The economic threshold of controlling rice leaf-roller is obtained by numerical calculation,
出处
《中山大学学报（自然科学版）》
CAS
CSCD
1992年第1期28-33,共6页
Acta Scientiarum Naturalium Universitatis Sunyatseni
关键词
稻纵卷叶螟
状态方程
目标函数
state equations
objective function
economic threshold
