养殖池塘水体中可溶性的糖在养殖过程中是随着养殖周期的延长而逐渐减少的,并持续维持在一个较低的水平上。糖是池塘水体中微生物生长所必需的碳源物质,因为水体中碳源物质的缺乏使得水体营养物中的碳氮比例不平衡,大多数的微生物不能正常生长。所以有的养殖户长期大量使用微生 The soluble sugar in aquaculture pond water gradually decreases with the extension of the breeding cycle during the breeding process, and continues to be maintained at a relatively low level. Sugar is a carbon source material necessary for the growth of microbes in pond water, because the lack of carbon source in water makes the proportion of carbon and nitrogen in water nutrients unbalanced and most of the microorganisms can not grow normally. So some farmers long-term use of large quantities of microorganisms