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船引真吾和青峰重范二教授撰写的“土壤实验法”是一本较全面的土壤理化性质测定方法的书籍。但是由于篇幅太大,材料过多,现仅将和盐碱土改良试验研究有关的章节加以摘译,分期发表,供有关同志参考。现有的土壤代换性测定方法是很烦琐的,如能把这里介绍的方法加以研究改进,可以大大地缩短分析时间、提高工效,这是一项很有意义的工作。
The “soil experiment method” written by Prof. Shingo Jinu and Prof. Qingfeng Fanfan is a comprehensive book for the determination of physico-chemical properties of soil. However, due to the excessive space and too much material, only the chapters related to the improved experimental study of saline-alkali soil are to be extracted and published in phases for the reference of relevant comrades. The existing method of determination of soil replacement is very cumbersome. If we can improve the method introduced here, it can greatly shorten the analysis time and improve the work efficiency. This is a very meaningful work.