SSSAJ Grow Your Career with SSSA
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published in Soil Sci Soc Am J 18:130-132 (1954)
© 1954 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Reeve, R. C.
Right arrow Articles by Gschwend, F. B.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Reeve, R. C.
Right arrow Articles by Gschwend, F. B.
Agricola
Right arrow Articles by Reeve, R. C.
Right arrow Articles by Gschwend, F. B.

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

R. C. Reeve, C. A. Bower, R. H. Brooks and F. B. Gschwend2

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.

NOTES

1 Contribution from the U. S. Salinity Laboratory, Riverside, Calif., and the Division of Soil and Plant Relationships, Beltsville, Md., B.P.I.S.A.E., U. S. Dept. of Agriculture, in cooperation with the 17 Western States and the Territory of Hawaii. Presented before Division I, Soil Science Society of America, Nov. 18, 1953, Dallas, Tex.

2 Agricultural Engineer, Soil Scientist, Agricultural Engineer and Chemist, respectively.

Received for publication November 27, 1953.




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
and Life Sciences Education		 Vadose Zone Journal
Journal of Plant Registrations Journal of
Environmental Quality		 The Plant Genome
Copyright © 1954 by the Soil Science Society of America.