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田间害虫种群抽样技术中指数法的参数估计
刘光祖1, 史美英1, 宋世德1
西北农业大学 基础科学系
摘要:
针对Toylor指数法用广义LS法对其参数进行了估计,并利用BOX百分偏差对估计偏差进行了度量,从而可以有效的控制把估计精度不高的参数值用于田间害虫的抽样技术之中。
关键词:  田间害虫,指数法,参数估计,抽样技术
DOI:
分类号:O212.1
基金项目:
Parmetric Estimation of Exponent in Field Pest Population Sampling
Liu Guangzu Sh Meiying\ Song Shide,Liu Guangzu Sh Meiying\ Song Shide,Liu Guangzu Sh Meiying\ Song Shide
Abstract:
In this paper,parameters of Toylor exponent were estimated with the generalised LS;and the estimative deviation was demermined with Box percent deviation.Thus Could effectively control the application of the parameters without highly estimative accuracy to the field pest population samling techniques.
Key words:  field pest,exponent,parametric estimation.sampling technique