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以产量为45 000kg/hm~2(合3000kg/667m~2)苹果园为例,根据德国著名化学家李比希的养分归还学说,研究一定产量的果园化学肥料和有机肥料用量的方法。通过研究所得数值与发达国家目前果园用肥量基本相近,可以作为果园施肥依据。本方法原理明确易懂,无需复杂的实验程序,简单易掌握,对指导果园科学施肥具有普遍的实践意义。
Taking the apple orchard with yield of 45 000 kg / hm ~ 2 (3000kg / 667m ~ 2) as an example, this paper studied the method of applying chemical fertilizers and organic fertilizers in some orchards according to the theory of nutrient return of the famous German chemist Li. Through the study of the value and the developed countries orchard with the amount of fertilizer is basically similar, can be used as fertilization basis orchard. The principle of the method is clear and easy to understand, does not require complicated experimental procedures, and is easy to grasp. It is of universal practical significance to guide orchard scientific fertilization.