长效化肥,顾名思义,是化肥发挥作用时能够缓慢而持续,在农作物生长发育阶段不断供给养分。这种类型的肥料在国外已研制并生产,并在经济价值高的果树或草场(足球草场或高尔夫球场)上应用。优点是一次施用肥效持续时间长,流 Long-term fertilizer, as its name implies, is a slow and sustained fertilizers role in the continuous supply of nutrients in the crop growth and development stage. This type of fertilizer has been developed and produced abroad and applied on fruit trees or pastures of high economic value (soccer fields or golf courses). The advantage of a long time to apply fertilizer efficiency, flow