夏天水温高,鱼的新陈代谢旺盛,如施肥不当,就可导致鱼死亡,因此夏季给鱼塘施肥时必须注意下列事项:1、施肥要确保无毒无害。农家肥在施入鱼塘之前,禁止喷杀蝇蛆类药物,肥料中药性没有消失时,也不能使用。2、肥料一定要充分发酵。要施腐熟后的肥料,这样既可以提高肥效,又可以减少鱼塘的有机质耗氧量,同时还可以减少鱼病的发生。3、施肥要适量。夏季施肥过量,会导致鱼缺氧泛塘,一般水色清淡,透明度超过40厘米以上的鱼塘就应施肥,每隔2—3天施肥1次,每次每亩施人粪尿100—150公斤。4、施肥要根据天气、水质和鱼的 Summer high temperature, fish metabolism, such as improper fertilization, can lead to fish death, so the summer fertilizer to fish ponds must pay attention to the following: 1, fertilization to ensure non-toxic harmless. Manure fertilizer in the pond before the ban on spraying maggots drugs, fertilizer, medicine has not disappeared, it can not be used. 2, fertilizer must be fully fermented. To apply matured fertilizer, so that both can improve fertilizer efficiency, but also can reduce the oxygen consumption of organic matter in fish ponds, but also can reduce the occurrence of fish diseases. 3, fertilization should be appropriate. Excessive summer fertilization can cause fish hypoxia pan, the general aqua-light, transparent fish ponds over 40 cm should be fertilized, fertilization every 2-3 days 1, each manure applied per acre 100-150 kg . 4, fertilization should be based on the weather, water quality and fish