青虾对农药化肥的敏感性最强。长期以来由于农药化肥的污染影响,青虾资源遭到严重破坏,导致资源锐减,价格不断提高,从而极大地刺激了养殖业的发展。但是,有些农户由于不懂饲养技术,盲目发展导致养殖失败,造成亏本。据我多年来的实践及调查分析,造成养殖失败的主要因索有以下6个方面:①清塘不彻底。主要是药物用量不足,野杂鱼类没有得到彻底消灭,导致杂鱼大量繁殖,危害虾苗。②进水关没有把好。进水时把外河里的小鱼及鱼仔带入池内。特别是鲫鱼和鲤鱼仔入池,生长繁殖很 Freshwater shrimp is the most sensitive to pesticides and fertilizers. For a long time due to the pollution of pesticides and fertilizers, freshwater shrimp resources have been severely damaged, resulting in sharp reduction in resources, rising prices, which greatly stimulated the development of aquaculture. However, because some farmers did not know the breeding technology, blind development led to breed failure, resulting in losses. According to my years of practice and investigation and analysis, the main cause of breeding failure has the following six aspects: ① clear pond is not complete. Mainly lack of drug use, wild fish have not been completely eliminated, resulting in large numbers of trash fish breeding, endangering shrimp. ② water inlet is not good. When the water into the river fish and fish into the pool. In particular, carp and carp into the pool, growth and reproduction is very