| 密山地区水稻负泥虫种群动态及药剂防治指标研究 |
| |
| 引用本文： | 孙强. 密山地区水稻负泥虫种群动态及药剂防治指标研究[J]. 黑龙江八一农垦大学学报, 2000, 12(4): 9-11 |
| |
| 作者姓名： | 孙强 |
| |
| 作者单位： | 黑龙江八一农垦大学植物科技学院,密山,158308 |
| |
| 摘 要： | 密山地区水稻负泥虫卵、幼虫、蛹和成虫的田间种群数量动态符合近似抛物线型曲线；幼虫盛发期在６月下旬，田间种群密度与水稻产量损失率呈极显著正相关，回顾方程为：Ｙ（损失率）＝０．００３３Ｘ（百丛虫量）＾１．４１９，种群数量达３００头／百丛时水稻显著减产：药剂防治指标为幼虫田间种群数量９２．４头／百丛。
|
| 关 键 词： | 水稻负泥虫 种群动态 防治指标 产量损失 |
POPULATION DYNAMICS AND INDEX OF CHEMICAL CONTROLS OF OULEMA ORYZAE IN MISHAN AREA |
| |
| SUN Qiang. POPULATION DYNAMICS AND INDEX OF CHEMICAL CONTROLS OF OULEMA ORYZAE IN MISHAN AREA[J]. journal of heilongjiang bayi agricultural university, 2000, 12(4): 9-11 |
| |
| Authors: | SUN Qiang |
| |
| Abstract: | The population distribution of Oulema oryzae is researched, the results are as follows: The population distribution is similar to the parabolic model ; Larvae high appearing is in the later June ;significant positive correlation exist between population density and rice yield losing ratio :By population 300,the yield of rice reduces obviously ;Index of chemical controls is 92.4. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
