| 棉花苗期棉叶螨(Tetranychus cinnabarinus)种群密度估计方法 |
| |
| 引用本文： | 吴孔明. 棉花苗期棉叶螨(Tetranychus cinnabarinus)种群密度估计方法[J]. 河南农业大学学报, 1989, 0(4) |
| |
| 作者姓名： | 吴孔明 |
| |
| 作者单位： | 河南省农科院植保所 |
| |
| 摘 要： | 通过对23块棉田大样本调查数据的分析,提出了基于螨株率(Pi)、红叶率(Pj)估计棉叶螨种群密度的数学模型。并利用 Kuno(1969) ,Green(1970) ,Willson(1983) 模型建立了棉叶螨序贯抽样式.
|
| 关 键 词： | 棉叶螨 种群密度 估计方法 |
Estimation of Population Density of the Carmine Spider Mite(Tetranychus cinnabarinus)in Cotton Field |
| |
| Wu Kongming. Estimation of Population Density of the Carmine Spider Mite(Tetranychus cinnabarinus)in Cotton Field[J]. Journal of Henan Agricultural University, 1989, 0(4) |
| |
| Authors: | Wu Kongming |
| |
| Abstract: | Based on the analyses of 23 samples selected from cotton field in 1988,threemodels were developed for estimating the population density of the carminespider mite.The sequential sampling techniques presented by Kuno(1969) ,Green(1970) and willson(1983) also were investigated in this paper. |
| |
| Keywords: | Tetranychus cinnabarinus population density method for estimation |
| 本文献已被 CNKI 等数据库收录！ |
