养鱼水体施磷有学问每年６—９月是鱼类盛长季节，此时大量鱼类排泄物、残饵、生物体分解致使水体氮、磷含量严重失调，池塘水体中含磷量不足。此时施用磷肥有特别重要意义，但应掌握正确施磷技术才能发挥更大效益。应做到：１．选用最理想的过磷酸钙肥料，其次可选用钙镁... Aquaculture water phosphorus is learned every year from June to September is the season of fish growth, when a large number of fish excrement, bait, biological decomposition caused serious imbalance in water nitrogen and phosphorus content of phosphorus in pond water is not enough. At this point the application of phosphate fertilizer is of particular importance, but should master the correct phosphorus technology in order to play greater benefits. Should do: 1. Selection of the best superphosphate fertilizer, followed by the optional calcium ...