| 稻纵卷叶螟幼虫田间分布型及取样方法研究初报 |
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| 引用本文： | 章炳旺,林邦宜,邹运鼎. 稻纵卷叶螟幼虫田间分布型及取样方法研究初报[J]. 安徽农业大学学报, 1989, 0(4) |
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| 作者姓名： | 章炳旺 林邦宜 邹运鼎 |
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| 作者单位： | 安庆市植保站(章炳旺)，池州市植保站(林邦宜)，安徽农学院(邹运鼎) |
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| 摘 要： | 调查结果表明:稻纵卷叶螟的虫苞及幼虫田间分布型属聚集分布。其分布与水稻尽势等环境因素有关。当允许误差D=0.2时,不同幼虫虫口密度(?)下的抽样数量为n=3.7+26.9/(?)。在几种取样方法中以平行线法较好。
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| 关 键 词： | 稻纵卷叶螟 田间分布型 取样方法 |
STUDY ON SPATIAL DISTRIBUTION PATTERN AND SAMPLING METHODS OF THE RICB CASE WORM, CHAPHALOCROCIS MEDINALIS |
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| Zhang Binwang Lin Bangxian Zhou Yunding. STUDY ON SPATIAL DISTRIBUTION PATTERN AND SAMPLING METHODS OF THE RICB CASE WORM, CHAPHALOCROCIS MEDINALIS[J]. Journal of Anhui Agricultural University, 1989, 0(4) |
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| Authors: | Zhang Binwang Lin Bangxian Zhou Yunding |
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| Affiliation: | Zhang Binwang Lin Bangxian Zhou Yunding |
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| Abstract: | According to the obsevation on the distribution of worm-buds and larvae of the rice case worm, it is determined that their spatial distribution pattern is an aggregated one. Their aggregation is due to some environmental factors such as rice grouth features. When acceptable error D=0.2, the sampling numbers for larvae densities(?) with different means are n=3.7+(26.9)/(?). Several sampling methods are compared, and the results show that the parallel line sampling method is the best. |
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| Keywords: | Rice leaffolder Spatial distribution pattern Sampling method. |
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