每逢盛夏季节,不少地方的养殖户,由于疏于防范,往往发生泛塘死鱼现象,造成不同程度的经济损失。 造成泛塘的原因: 1、闷热雷雨天气,气压低,特别是傍晚的雷阵雨,会导致上下水对流,是发生泛塘死鱼的主要原因。 2、投饵施肥方法不当或过量,人为造成泛塘死亡。如投放浮萍时将水面全部覆盖,造成鱼类缺氧泛塘。还有的一次性投入过量人畜粪,导致水质过肥,遇到恶劣天气就会造成 Every summer season, many local farmers, due to neglect to guard against, often Pan Tong dead fish phenomenon, resulting in varying degrees of economic losses. Pan Tong causes: 1, hot and thunderstorms, low pressure, especially in the evening thundershowers, will lead to the upper and lower water convection, is the main reason for Pan Tong dead fish. 2, feeding improper fertilization methods or excessive, artificial pan-Tong death. Such as when put duckweed will cover all the water, resulting in fish hypoxia Pan Tong. There is also a one-time investment in human and animal excrement, resulting in water quality is too fat, encountered adverse weather will result