有的养殖户反映,向水体中泼洒药物防治鱼病效果不明显,甚至出现死鱼现象。据了解,其原因除个别是乱用药外,大多数与施药方法不当有关。为避免上述问题,在用泼洒法施约吋,应注意以下几 Some farmers report that sprinkling drugs into the water to prevent and cure fish diseases is not obvious, and even the phenomenon of dead fish occurs. It is understood that, in addition to the reasons for the individual is chaos medication, the majority of improper application methods. In order to avoid the above problems, when applying sprinkling method, you should pay attention to the following