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化肥养鱼具有施用简单,不污染水质,花工少,见效快,效益高等特点。近年来,利用化肥养鱼日起普遍。但是,在生产实践中,一些人由于没有采用合理的施用方法,不但达不到增产的效果,反而污染池塘水质,引起鱼类中毒死亡。据调查,仅祁阳县每年因施用化肥,导致鱼类中毒死亡的水面达34公顷左右,损失鱼类10万公斤以上。因此,必须掌握科学的施肥方法,减少不应有的损失,才能达到高产高效的目的。化肥养鱼要讲究以下几点: 1.施肥时间 水温对化肥的肥效影响很大,低温时效果较差,20℃以上即可施用化肥,30℃左右施用的效果最佳。所以,一般施用化肥的时间宜在每
Fertilizer fish with a simple application, does not pollute the water quality, less flower workers, quick, high efficiency and so on. In recent years, the use of fertilizer from the fish generally. However, in the production practice, some people, instead of adopting reasonable application methods, not only failed to achieve the effect of increasing production but polluted the water quality of ponds and caused the death of fish poisoning. According to the survey, only Qiyang County, due to the use of chemical fertilizers, causes about 34 hectares of water to die of fish poisoning and loses over 100,000 kilograms of fish. Therefore, we must master the scientific methods of fertilization and reduce unnecessary losses in order to achieve the purpose of high yield and high efficiency. Fertilizer fish should pay attention to the following points: 1. Fertilizer time water temperature on the fertilizers have a great effect on fertilizer, low temperature effect is poor, more than 20 ℃ can be applied fertilizer, 30 ℃ application of the best. Therefore, the general application of fertilizer should be in each time