鱼苗池育苗时追肥,如果采用全池遍撒,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。如果将化肥装入塑料编织袋内,让其自然溶解扩散,不仅肥效稳定,成本低,劳动强度小,而且不断为浮游植 Fischer seeding pond when the top dressing, if the use of the whole pool throughout the sprinkler, although fast, but the role of time is short, many of the fertilizer has not yet completely dissolved in small particles, easy to eat fish fry, affecting the survival rate of fry. If the chemical fertilizer into plastic woven bags, let it dissolve naturally spread, not only stable fertilizer efficiency, low cost, low labor intensity, but also for the phytoplankton