论文部分内容阅读
随着科学技术水平的不断提高,相应地农作物病虫害的化学防治工作也要有所加强.但是,由于对化学防治的某些方法和手段了解不够,虽然农药的使用浓度不断增加,单位面积用药量不断加大,但防治工作并没有收到很好的效果,有的甚而对周围环境和农产品造成严重污染,危害人和畜禽的健康.因此,研究采用合适的防治方法和手段,实现
With the continuous improvement of the science and technology, the chemical prevention and control of crop pests and diseases should also be strengthened accordingly.However, due to the lack of understanding of some methods and means of chemical control, although the use concentration of pesticides is increasing, the dosage per unit area However, the prevention and control work has not received very good results, and some even cause serious pollution to the surrounding environment and agricultural products and endanger the health of people and livestocks.Therefore, the research adopts appropriate control methods and means to achieve