“蛋肥”的施法王哲理我们从７０年代开始进行大颗粒长效包膜肥料的施肥试验，用塑料薄膜、粘土、水泥等材料分层制成蛋壳状外衣，像包饺子一样把化肥裹在里面，小的像麻雀蛋，大的如驼鸟蛋，必要时也可以制做成足球那样大。按照林果等作物根系分布的深度和范围，把“蛋肥... “Egg fat” cast Wang philosophy We started from the 70’s large particle long-term fertilization test fertilizers, with plastic film, clay, cement and other materials made of eggshell-like coat layered, like dumplings wrapped in chemical fertilizer Inside, the small ones like sparrow eggs, big ones like ostrich eggs, can be made as big as soccer when necessary. According to the distribution of fruit and other crop roots of the depth and scope of the "egg fat ...