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夏秋季节鱼池只能追肥,不宜施基肥。 有机肥追施法:有机肥包括各种人畜粪便,每次每亩施100kg,7—10天施肥一次,可采取分小堆,堆放和全池泼洒的办法。还可采取搭架施肥,即用木杆作支架,用柳条箔做底盘,在池中深水区搭成几个架子,将粪肥放在架上,让其贴近水面,使肥料在水的中上层分解扩散。还可挂袋,即把肥料盛在耐腐烂的袋子中,挂在塘中深水区的木柱上贴近水面让其自行分解扩散。搭架和挂袋施肥法,能加快肥料分解速度,均匀地使肥料扩散到整个鱼池中,特别是能保持肥料在池水上层腐败分解,这样尽管肥料分解快,也不会造成缺氧,使鱼浮头。 化肥追施法:鱼塘用化肥主要以氮、磷
Summer and fall fish ponds can only top-dressing, not base fertilizer. Organic fertilizer topdressing law: Organic manure, including a variety of human and animal feces, each applied 100kg per mu, 7-10 days of fertilization time, can be divided into small heaps, piled up and Quanchiposa approach. Can also take the shelf fertilization, that is, wood for the stent, with wicker foil chassis, take a few shelves in the pool of deep water, the manure on the shelf, let it close to the water, fertilizer in the water in the upper Decomposition and diffusion. Hanging bags can also be used, that is, the fertilizer is contained in a decay resistant bag and hung on a wooden pillar in the deep water area of the pond to allow it to decompose and spread on its own. Shelf and bagging fertilization method, can accelerate the decomposition rate of fertilizer, fertilizer evenly spread throughout the fish ponds, in particular, can keep the decomposition of fertilizer in the upper water corruption, so that despite the rapid decomposition of fertilizers, it will not cause hypoxia, the fish Floating head. Fertilizer topdressing law: fish ponds with nitrogen, phosphorus fertilizer