大豆蚜为害损失估计数学模型研究  

Research on Math Model of Estimating Yield Loss Caused by Aphis glycines Mats

作　　者：王洪平[1] 赵大为[2] 李伟红 

机构地区：[1]沈阳农业大学植保学院,沈阳110161 [2]辽宁省农业机械化研究所,沈阳110161 [3]辽宁省农机质量监督管理站,沈阳110000

出　　处：《农业科技与装备》2008年第1期25-26,共2页Agricultural Science & Technology and Equipment

摘　　要：根据前人提出的为害量、为害当量观点,提出连续种群下为害当量的含义,给出为害当量的理论模型,修正了累计蚜量的偏差,提出产量损失估计的数学表达式,讨论了模型参数的田间设计方法。Under the principles about damage volume and injury equivalence（IE）, the new concept of IE was proposed ior continued population of aphis in this paper, the theoretical model which modified the error of accumulated aphis population was established, at the same time the math equation about yield loss and damage was expressed, and the field experiment design for model parameters was discussed in the end.

关 键 词：植物保护 大豆蚜 研究 产量损失估计 数学模型 

分 类 号：S435.651[农业科学—农业昆虫与害虫防治]