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根据高粱粟穗螟幼虫田间种群空间分布型的研究结果,应用序贯抽样,零频率抽样技术,给出了幼虫田间种群密度估计的Kuno、Iwao指导防治的序贯抽样表和抽样图,Gerrard和Chiang零频率种群密度估计表,不同虫口密度、抽样精度下的理论抽样数。
According to the results of spatial distribution of the rice borer, the sequential sampling and zero-frequency sampling techniques were used to estimate the population density of the larvae in Kuno and Iwao fields. Gerrard and Chiang zero-frequency population density estimation table, different population density, sampling precision of the theoretical number of samples.