My Account: Log In | Join | Renew
Search
Author
Title
Vol.
Issue
Year
1st Page

Abstract

 

This article in SSSAJ

  1. Vol. 18 No. 2, p. 130-132
     
    Received: Nov 27, 1953
    Published: Apr, 1954


 View
 Download
 Alerts
 Permissions
 Share

doi:10.2136/sssaj1954.03615995001800020004x

A Comparison of the Effects of Exchangeable Sodium and Potassium upon the Physical Condition of Soils1

  1. R. C. Reeve,
  2. C. A. Bower,
  3. R. H. Brooks and
  4. F. B. Gschwend2

Abstract

Abstract

The effects of exchangeable sodium and of exchangeable potassium upon soil physical condition were compared by means of permeability ratio, air to water, and modulus of rupture determinations. The permeability ratio is a measure of the change in pore-size distribution due to the action of water and the modulus of rupture is a measure of soil crusting. The permeability ratio and modulus of rupture increased markedly with increasing exchangeable-sodium-percentage, whereas, increases in the exchangeable-potassium-percentage had little effect. The relation of the permeability ratio to exchangeable-sodium-percentage can be expressed by an exponential equation of the form, y = aebx, whereas, the modulus of rupture is linearly related to exchangeable-sodium-percentage by the equation y' = mx + c. The parameters a, b, m and c of the respective equations are positively correlated with cation exchange capacity and total specific surface.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America