鱼苗培育用无机肥追肥时，如果采用全池遍洒，肥效虽快，但作用时间短。化肥中许多尚未完全溶解的微小颗粒，易被鱼苗误食，影响鱼苗的成活率。我们在生产实践中，将化肥装人塑料编织袋内，让其自然溶解扩散，不仅肥效稳定，成本低、劳动强度轻，而且能不断为浮游植物提供必要 Fungus cultivation of inorganic fertilizer top-dressing, if you use the entire pool all over the sprinkler, although fertilizer fast, but the role of time is short. Fertilizers many have not yet completely dissolved in small particles, easy to eat fish fry, affecting the survival rate of fry. In production practice, we put chemical fertilizer in plastic woven bags, let it dissolve naturally, not only has stable fertilizer efficiency, low cost, light labor intensity, but also can continuously provide necessary for phytoplankton