|
|||||
|
|
| 农田杂草灰飞虱的空间格局与抽样技术 | |
| 引用本文： | 王华弟,朱金良,俞晓平,杨廉伟,汪恩国,张国鸣,王国迪.农田杂草灰飞虱的空间格局与抽样技术[J].浙江农业学报,2007,19(4):293-296. |
| 作者姓名： | 王华弟 朱金良 俞晓平 杨廉伟 汪恩国 张国鸣 王国迪 |
| 作者单位： | 1. 浙江省植物保护检疫局,浙江,杭州,310020 2. 浙江省嘉兴市病虫测报站,浙江,嘉兴,314050 3. 浙江省农业科学院,浙江,杭州,310021 4. 浙江省天台县病虫测报站,浙江,天台,317200 5. 浙江省临海市植物保护站,浙江,临海,317600 6. 杭州市植保土肥总站,浙江,杭州,310020 |
| 摘 要： | 通过聚集度指标法测定和*m--X回归法分析,研究了浙江地区农田杂草越冬代灰飞虱成若虫的田间分布格局与抽样技术。结果表明,灰飞虱成虫、若虫和成若虫混合种群趋向于聚集分布,聚集强度随虫口密度增加而增强,抽样数量随虫口密度增加而递减,最适理论抽样模型为n2=105.95/-X 31.2,当灰飞虱虫口密度每样方2,5,10和20头以上时,分别抽查80,50,40和30样方。以棋盘式、五点式或Z字型等取样方法较宜。 |
| 关 键 词： | 农田杂草 灰飞虱 空间格局 抽样技术 |
| 文章编号： | 1004-1524（2007）04-0293-04 |
| 收稿时间： | 2007-02-28 |
| 修稿时间： | 2007-02-28 |
The spatial pattern and sampling methods of small brown planthopper,Laodelphax striatellus Fallen, on weeds in paddy fields |
|
| WANG Hua-di,ZHU Jin-liang,YU Xiao-ping,YANG Lian-wei,WANG En-guo,ZHANG Guo-ming,WANG Guo-die.The spatial pattern and sampling methods of small brown planthopper,Laodelphax striatellus Fallen, on weeds in paddy fields[J].Acta Agriculturae Zhejiangensis,2007,19(4):293-296. | |
| Authors: | WANG Hua-di ZHU Jin-liang YU Xiao-ping YANG Lian-wei WANG En-guo ZHANG Guo-ming WANG Guo-die |
| Institution: | 1.Zhejiang Bureau of Plant Protection and Quarantine, Hangzhou 310020, China;2. Forecasting Station of Jiaxing Plant Pests, Jiaxing 314050, China ; 3 .Zhefiang Academy of Agricultural Sciences, Hangzhou 310021, China ; 4 .Forcasting Station of Tiantai Plant Pests, Tiantai 317200, China ; 5 .Plant Protection Station of Linhai , Linhai 317600, China ;6 .Plant Protection, Soil and Fertilizer Station of Hangzhou, Hangzhou 310020, China |
| Abstract: | By using the congregation index and-regression,the field distribution pattern and sampling methods of small brown planthopper(SBPH),Laodelphax striatellus Fallen,were studied on weeds in paddy fields in Zhejiang province.The results indicated that the populations of SBPH adult,nymph or mixture of adult and nymph had a congregation distribution,the congregation index raised with an increase of SBPH density,however,the number of sampling unit decreased with the increase of SBPH density.The optimum theoretical sampling model is n2=105.95/ 31.2,the number of sampling were 80,50,40 and 30 units respectively whenever the SBPH density were above 2,5,10,20 per sampling unit.The proper sampling methods are tessellation,five-point type,and Z type etc. |
| Keywords: | weeds in paddy fields Laodelphax striatellus Fallen spatial pattern sampling methods |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |