农药除草和防治病虫害,结果使环境中的残毒越来越多,有的不能生物降解,有的到处转移,对动、植动和人类造成危害.尽管人人都承认这一点,然而,为了满足人类对食品越来越大的需求,又不得不使用农药来提高农业的产量. Pesticide weeding and pest control have resulted in more and more residual toxins in the environment, some of which are not biodegradable, some are transferred around, and are harmful to animals, plants and humans. Although everyone acknowledges this, however, in order to satisfy The growing demand of mankind for food has forced the use of pesticides to increase agricultural output.