英国土壤学家托尼·哈里森和约翰·戴顿博士研究了一项测量林木施肥量的新技术,施肥量的确定是通过测量树根吸收营养的速度来实现的。常规的测量方法是对树叶和土质进行分析,但是由于树木对营养的需求并不能完全直观地反映在树叶上,因此通过观察树叶来分析氮、磷、钾的含量是靠不住的,施肥量的多少不易掌握,施少了不起 British soil scientists Tony Harrison and Dr. John Dayton studied a new technique for measuring the amount of tree fertilizer applied, which is determined by measuring the rate at which roots absorb nutrients. The conventional measurement method is to analyze the leaves and soil, but because the tree’s nutrition requirements can not be directly and completely reflected in the leaves, it is unreliable to analyze the content of nitrogen, phosphorus and potassium by observing the leaves, and the amount of fertilizer Not easy to grasp, Shi Shi great