鉴于养殖水体大都处于“磷饥饿”和氮、磷比例失调的状态,如经常施用水溶性磷肥(如过磷酸钙、重过磷酸钙等),可以有效地改良水质,提高水体肥力,从而提高养殖产量。由于磷肥极易生成难溶物质沉淀,或被吸附固定,因此实际施用时,必须特别注意如下几方面,以减少有效磷损失。 In view of the fact that aquaculture water is mostly in a state of “phosphorus starvation” and imbalance of nitrogen and phosphorus, such as frequent application of water-soluble phosphate fertilizer (such as superphosphate and superphosphate), water quality can be effectively improved, fertility of water body can be improved, Yield. As the phosphate fertilizer can easily generate insoluble precipitate, or be adsorbed and fixed, so the actual application, we must pay special attention to the following aspects to reduce the available phosphorus loss.