| 栽插密度、施氮量对水稻主要病虫害的综合生态效应 |
| |
| 引用本文： | 张桂芬,鲁传涛,申效诚,王文夕.栽插密度、施氮量对水稻主要病虫害的综合生态效应[J].植物保护学报,1995,22(1):38-44. |
| |
| 作者姓名： | 张桂芬 鲁传涛 申效诚 王文夕 |
| |
| 作者单位： | 河南省农业科学院植物保护研究所，河南省农业科学院植物保护研究所，河南省农业科学院植物保护研究所，河南省农业科学院植物保护研究所 郑州 450002，郑州 450002，郑州 450002，郑州 450002 |
| |
| 摘 要： | 作者应用回归最优设计，评价了水稻栽插密度与施氮水平对稻飞虱、稻纵卷叶螟和水稻纹枯病发生为害的综合生态效应。结果表明，密度与氮肥均是诱发稻飞虱、稻纵卷叶螟和水稻纹枯病发生为害的主要因子，但影响的侧重点不同，密度主要影响稻飞虱、稻纵卷叶螟迁入虫量的再分配；氮肥对稻飞虱、稻纵卷叶螟种群动态的影响，以及对水稻纹枯病的水平扩展作用要大于密度的作用；而密度对水稻纹枯病的垂直扩展作用略大于氮肥的作用，二者的交互
|
| 关 键 词： | 回归量优设计 密度 氮肥 稻飞虱 水稻 纹枯病 |
THE SYNTHESIZED ECOLOGICAL EFFECT OF RICE DENSITY AND NITROGEN FERTILIZER ON THE OCCURRENCE OF MAIN RICE PESTS |
| |
| Zhang Guifen,Lu Chuantao,Shen Xiaocheng and Wang Wenxi.THE SYNTHESIZED ECOLOGICAL EFFECT OF RICE DENSITY AND NITROGEN FERTILIZER ON THE OCCURRENCE OF MAIN RICE PESTS[J].Acta Phytophylacica Sinica,1995,22(1):38-44. |
| |
| Authors: | Zhang Guifen Lu Chuantao Shen Xiaocheng and Wang Wenxi |
| |
| Institution: | Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou,Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou,Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou and Institute of Plant Protection, Henan Academy of Agricultural Sciences, Zhengzhou |
| |
| Abstract: | An optimum regression design experiment was conducted in paddy rice field to estimate the synthesized ecological effect of transplantation density (X1) and application amount of urea (X2) on the occurrence of planthoppers (PH), composite populations of white-backed rice planthopper Sogatella furcifera (Horvath) and brown planthopper Nilaparvata lugens Stal), rice case worm (RCW) Cnaphalocrocis medinalis Guenee and rice sheath blight disease (RSB) caused by Rizoctonia solani Kuhn. The results showed that X1 and X2 were important factors with different actions separately on PH, RCW and RSB. The rice density mainly affected on the immigrated number and redistribution of PH and RCW,and the nitrogen mainly on their population dynamics. The effect of nitrogen was more stronger than that of rice density on the horizontal dispersion of RSB and some what weaker than that of the latter on its vertical dispersion. While all the population dynamics of PH and RCW as well as horizontal and vertical dispersion of RSB were significantly affected by the interaction of the two factors. Based on further mathematical analyses, the optimum combination of rice density and nitrogen favorable to the growth and development of rice and unfavorable to the rampancy of pests were explored. |
| |
| Keywords: | optimum regression design rice density and nitrogen fertilizer planthopper rice case worm rice sheath blight |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《植物保护学报》浏览原始摘要信息 |
| 点击此处可从《植物保护学报》下载免费的PDF全文 |
|
