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(一)基本要求1.合理搭配:化肥养鱼,除按氮磷钾合理搭配外,用量不要过多,间隔时间不能太短。2.科学施用:在施用化肥的同时,每半月必须施用猪、鸡、牛粪等有机肥,每667平方米水面施400～500千克,以弥补化肥缺乏微量元素和有机质,并要和化肥错开施用。3.因鱼施肥:对鲢、鳙和罗非鱼
(A) the basic requirements 1. Reasonable with: Fertilizer fish, in addition to a reasonable match with NPK, the dosage should not be too much, the interval can not be too short. 2. Scientific application: At the same time of using chemical fertilizers, it is necessary to apply organic fertilizer such as pigs, chickens and cow dung every half month to apply 400 to 500 kg per 667 square meters of water so as to make up for the lack of trace elements and organic matter in chemical fertilizers and to offset fertilizer Application. 3 due to fish fertilization: silver carp, boil and tilapia