盛夏季节,养鱼户往往发生泛塘死鱼,造成不同程度的经济损失。一、造成泛塘原因 1.雷雨天气,气压低,特别是傍晚的雷雨,导致上下水对流,是发生泛塘的主要原因。2.思想麻痹大意,傍晚雷雨后忽视巡塘,疏于防范,造成泛塘。3.投饵施肥方法不当或过量,造成泛塘死亡。如投放浮萍时将水面全部覆盖,造成鱼类缺氧泛塘。一次性投入过量人畜粪,导致水质过肥,遇到恶劣天气造成 Summer season, fish farmers often happen Pan Tong dead fish, resulting in varying degrees of economic losses. First, the causes of Pan Tong 1. Thunderstorm weather, low air pressure, especially in the evening thunderstorms, leading to convection, is the main reason Pan Tong occurred. 2. The idea of ​​paralysis, ignoring Xun Tong after thunderstorms in the evening, neglect prevention, resulting in Pan Tong. 3. Improper feeding methods or excessive fertilizers, resulting in pan Tong death. Such as when put duckweed will cover all the water, resulting in fish hypoxia Pan Tong. One-time investment in human and animal excrement, resulting in over-water quality, resulting in adverse weather