果园施肥的原则是:要将充足的有机肥和一定数量的化肥施入土壤,以保持和增加土壤肥力,改善土壤结构及生物活性,同时要避免肥料中的有害物质进入土壤,从而达到控制污染、保护环境的目的。生产无公害苹果的施肥标准可根据果树特点、肥料性质,并参考中国绿色食品发展中心制定的《生产绿色食品的肥料使用准则》,因地制宜地进行操作。 The principle of fertilizing the orchard is: to be sufficient organic fertilizer and a certain amount of fertilizer applied to the soil in order to maintain and increase soil fertility and improve soil structure and biological activity, while avoiding harmful substances in fertilizers into the soil, so as to control pollution , The purpose of protecting the environment. Fertilization standards for pollution-free apple production can be based on the characteristics of fruit trees and fertilizer properties, and refer to the “Guidelines for the Use of Fertilizers for Green Food” formulated by China Green Food Development Center to operate in accordance with local conditions.