养鱼池塘施肥的目的在于繁殖池塘中鱼类所需的各种饵料生物,从而提高池塘鱼产量。然而,池塘养鱼由于长年施肥、投饵而没有充分分解的有机肥料、残饵以及鱼类的排泄物不断沉积池底,加上泥沙混合,使池底逐渐形成一层淤泥。淤泥中含 Fish ponds The purpose of fertilization is to breed a variety of bait organisms for the fish in ponds, thereby increasing pond fish production. However, due to long-term fertilization and decommissioning of organic fertilizers, remnants of bait, and fish excretion, pond ponds have been continuously sedimented and mixed with sediment to gradually form a layer of sludge on the bottom of the pond. Mud containing