1农药安全合理使用的基本要求1.1做好病虫害的调查工作。在对田间喷洒农药之前需要对田间作物的病虫害具体情况进行深入具体了解,从而科学的确定用药种类以及用药的药量,以最小的代价获得最佳的防治效果。另外,在农药的喷洒时间也需要注意,不能太早也不能太晚,从而达到最好的杀虫目的。1.2在农药的选择方面选择那些低毒、高效、施药以后残留较少的农药,而且还需要以最少的农药量来达到最佳的防治效果,不仅仅杀死病虫害,而且还 1 basic requirements for the safe and rational use of pesticides 1.1 do a good job in the investigation of pests and diseases. Before spraying pesticides on the field, we need to understand the specific situation of pests and diseases in field crops so as to determine the types of drugs and dosage of drugs scientifically and obtain the best prevention and control results with minimum cost. In addition, spraying pesticides also need to pay attention, not too early nor too late, so as to achieve the best purpose of insecticide. 1.2 Select pesticides in the selection of those low toxicity, high efficiency, pesticide residues less pesticide application, but also with the minimum amount of pesticides to achieve the best control effect, not only kill pests and diseases, but also