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1.肥水养鱼的溶氧问题静肥水养鱼在我国相当普遍。肥水渔塘一般指肥量足,浮游植物、动物粪便和动植物体等也较多的渔塘。为了提高产量,渔塘中还要投放大量的人工饲料和增加对渔塘的施肥数量,这样就造成了水质恶化,尤其是溶氧极为不足的问题。尽管大量施肥可以促进浮游植物生长,进而使浮游植物光合作用的造氧量增加,但是大量的有机肥料、残余饵料、鱼类排泄物、水生生物尸体的分
1. Feiyu fish dissolved oxygen problems Static Feishui fish is quite common in our country. Fertilizer and water fishing pond generally refers to the foot fat, phytoplankton, animal waste and animal and plant objects are also more fishing ponds. In order to increase production, a large amount of artificial feed is also put into the fishing pond and the amount of fertilizer applied to the fishing pond is increased, thus resulting in the deterioration of water quality, especially the extremely insufficient dissolved oxygen. Although a large amount of fertilization can promote the growth of phytoplankton and further increase the oxygen production of photosynthesis of phytoplankton, a large amount of organic fertilizer, residual food, fish excrement, and dead bodies of aquatic organisms