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朝鲜苹果园的有机肥料不足,一般每亩只能施用1300多斤有机肥料作基肥。生产中主要是施用化学肥料。苹果园施肥制度的主要特点是:一、三年深幅施用一次有机肥料近年来,为了解决苹果园有机肥料不足的问题,朝鲜把每年浅施一次(每亩1千多斤)有机肥料的方法,改为三年集中深施一次的“深幅施肥法”。具体方法是,10月份沿树冠边缘挖深50～60厘米、宽50厘
North Korea’s apple orchards lack of organic fertilizer, generally only apply more than 1300 kg per mu organic fertilizer as a base fertilizer. Production is mainly the application of chemical fertilizers. In recent years, in order to solve the problem of insufficient organic fertilizers in apple orchards, the DPRK applied the method of applying organic fertilizers once per year (more than 1 kg per acre) to organic fertilizers , Replaced by three years of intensive application of deep fertilization method. The specific method is to dig the edge of the crown in October 50 to 60 cm deep, 50% wide