A COMPARISON OF POTASSIUM-ACTIVITY RATIOS DERIVED FROM EQUILIBRATION PROCEDURES AND FROM MEASUREMENTS ON DISPLACED SOIL SOLUTION

被引：20

作者：

MOSS, P

机构：

[1] Soils Division, Agricultural Institute, Wexford, Johnstown Castle

来源：

JOURNAL OF SOIL SCIENCE | 1969年 / 20卷 / 02期

关键词：

D O I：

10.1111/j.1365-2389.1969.tb01578.x

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

Direct and indirect methods of determining cation ratios of natural soil solutions are reviewed. The problems of comparing their results are discussed. K activity ratios derived from measurements on ethyl alcohol‐displaced soil solutions and values determined for the same soils by the Q/I equilibration procedure were in excellent agreement. An approximate rapid Q/I procedure using two K‐Ca solutions whilst less precise in its determination of activity ratio would be useful for routine purposes. The use of a proportionality constant to calculate activity ratios is acceptable. Copyright © 1969, Wiley Blackwell. All rights reserved

引用

页码：297 / &

共 31 条

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