塘泥是池塘中死亡的动、植物、鱼的粪便、残剩饵料、有机肥料等与泥砂混合,日积月累逐渐形成的。塘泥具有供肥、保肥和调节水质肥度的作用。塘泥中的细菌可以分解淤泥中的腐植质,不断地为水体提供氮、磷、钾等营养物质,故有“池塘肥料仓库”之称。但若池塘淤泥过厚,则易恶化水质,引起鱼病,甚至“泛塘”。那么,塘泥究竟多少合适呢?一般来讲保持20厘米左右为宜,山区清 Pond mud is the death of the pond, plants, fish feces, residual food, organic fertilizer and mud mixed with mud, over time gradually formed. Pond mud for fertilizer, fertilizer and regulate water quality effect. Pond bacteria in the mud can decompose the humus in the silt, continue to provide nitrogen, phosphorus, potassium and other nutrients, it is “pond fertilizer warehouse,” said. However, if pond sludge is too thick, it will easily aggravate water quality and cause fish diseases, or even “pan-ponds.” So, what is the appropriate amount of pond mud? In general, about 20 centimeters is appropriate, mountain clear