不同稻田养鱼模式的农药使用１．沟凼式稻田养鱼一季稻的水稻生育期约９０余天，期间雨量丰富、气温高、光照强，有利于稻鱼生产和农药降解，使用中低毒杀虫剂和杀菌剂均可达到较好效果，甲胺磷、甲基１６０５对鱼类毒性虽低，但对人畜毒性高，应尽量少用、使用。灭幼脲在... Pesticide use in different paddy farming patterns 1. Rice paddy rice paddy field a quarter of rice growth period of about 90 days, during the rich rainfall, high temperature, light is conducive to the production of rice and fish and pesticide degradation, the use of low and medium-toxic insecticides and fungicides are better Effect, methamidophos, methyl 1605 Although low toxicity to fish, but high toxicity to humans and animals, should be minimal use, use. Chlorbenzuron in ...