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目前在我区用以表征农作物病虫发生、为害状况的统计量主要有:发生面积、发生程度、为害面积、为害程度、经防治后仍损失产量数、经防治后挽回产量数.这些统计量是通过各级植保部门根据病虫发生、为害实况进行田间抽样调查统计分析后得来的.通过对这些统计量的数值分析,我们可以了解到当地病虫发生、为害、产量损失及其防治效果的总体状况.过去,我区一些单位对上述统计量的调查及统计计算方法不尽相同,有的缺乏科学性,不能客观地反映出当地病虫发生、为害的真实状况.有鉴于此,笔者试图对以下几个尚有争议的问题谈谈自己的看法.
At present, there are statistics in our area which are used to characterize pest occurrence and damage of crops. The main statistics are: the area of occurrence, the degree of occurrence, the area of damage, the degree of harm, the number of output after the prevention and control, and the number of output after the prevention and treatment. Through the statistical analysis of the field sampling and investigation based on the occurrence of pests and diseases and the actual situation of pests, we can understand the occurrence, damage and yield loss of pests and diseases and their control effects through the numerical analysis of these statistics In the past, some units in our district investigated and statistically calculated these statistic methods are not the same, some lack of scientific, can not objectively reflect the local pest occurrence, the real situation of harm. In view of this, the author Trying to talk about your opinions on the following controversial issues.