农药混用要讲科学吴向军（广东省江门市农药厂５２９０００）农药混用有六个问题要注意：１．混用要有增效作用：农药混用的目的之一是提高药剂对病、虫、杂草的防治效果，如果农药混用后产生减效作用，则不能混用。２．不增加对人畜的毒性：混合使用农药要确保人畜安全，... Pesticide mix to talk about science Wu Xiangjun (Jiangmen City, Guangdong Province, Pesticide Factory 529000) There are six problems with pesticide mix should pay attention to: 1. Mixed with a synergistic effect: One of the purposes of pesticide mixture is to improve the agent on the disease, insects, weeds control effect, if the pesticide mixture after the generation of a synergistic effect, you can not mix. 2. Does not increase the toxicity to humans and animals: mixed use of pesticides to ensure the safety of humans and animals, ...