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 32:209-211 (1968)
© 1968 Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Full Text (PDF)
Right arrow A correction has been published
Right arrow A correction has been published
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 Khasawneh, F. E.
Right arrow Articles by Barber, S. A.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Khasawneh, F. E.
Right arrow Articles by Barber, S. A.
Agricola
Right arrow Articles by Khasawneh, F. E.
Right arrow Articles by Barber, S. A.

Soil Properties Influencing Differential Ca to Sr Adsorption

F. E. Khasawneh, A. S. R. Juo and S. A. Barber2

ABSTRACT

The selectivity coefficient, the ratio of Sr to Ca as exchangeable cations divided by the ratio of Sr to Ca in solution, was found to vary from 0.61 to 1.51 on 63 Indiana soils. Soil factors influencing the variation in kc values were studied on selected soils where kc was determined after equilibration of the soil with an 0.1N chloride solution of Ca and Sr having a Ca/Sr molar ratio of approximately 190:1.

Organic matter was negatively correlated with the kc value (r = 0.83). Removal of the organic matter with H2O2 on nine soils increased the kc value. The magnitude of the increase was correlated with the percent organic matter in the soil (r = 0.89). The organic fraction of the soil adsorbed Ca preferentially to Sr. The inorganic fraction in most instances adsorbed Sr preferentially.

NOTES

1 Journal Paper no. 3093, Purdue University, Agr. Exp. Sta., Lafayette, Ind. Contribution from the Department of Agronomy. Presented before Div. S-2, Soil Science Society of America, Aug. 24, 1966, at Sillwater, Okla. This research was supported in part by the U.S. Atomic Energy Commission under Contract AT(11-1)-1495.

2 Research Associates and Professor of Agronomy, respectively, Dr. Khasawneh is now Research Chemist, Soils & Fertilizer Research Branch, TVA, Muscle Shoals, Ala.

Received for publication August 28, 1967. Accepted for publication September 11, 1967.






HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
The SCI Journals Agronomy Journal Crop Science
Vadose Zone Journal Journal of Plant Registrations
Journal of Natural Resources
and Life Sciences Education		 Journal of
Environmental Quality
Copyright © 1968 by the Soil Science Society of America.