论文部分内容阅读
研究和实践证明,把某些作物通过间作、套种或混种等形式合理搭配种植,可以控制或减轻某些病虫害的发生,收到“不施农药,胜施农药”的效果。麦棉套种。这种配植方法对控制棉花苗期蚜虫十分有利。麦套棉由于小麦的屏障作用,不仅直接影响棉蚜迁入,而且棉田温度要比单作田低1℃左右,再加上麦行天敌的作用,苗蚜不用施药防治即可控制危害。
Research and practice have proved that it is possible to control or mitigate the occurrence of some pests by accepting that some crops can be rationally mixed with crops in the form of intercropping, intercropping or intercropping, and the effect of “not applying pesticides and winning pesticides” can be controlled or mitigated. Wheat cotton intercropping. This method of planting cotton aphids control of the seedling is very favorable. Wheat wheat cotton barrier effect, not only directly affects the cotton aphid immigration, and the cotton field temperature is lower than the single field of about 1 ℃, coupled with the role of the wheat line natural enemies, seedling aphids can control the harm without spraying control.