HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Johnson, D. D. Articles by Guenzi, W. D. Search for Related Content PubMed Articles by Johnson, D. D. Articles by Guenzi, W. D. Agricola Articles by Johnson, D. D. Articles by Guenzi, W. D.

Influence of Salts on Ammonium Oxidation and Carbon Dioxide Evolution from Soil¹

ABSTRACT

Osmotic tension was found to reduce nitrate production and CO₂ evolution from soil in a linear manner. This is essentially the result which would have been predicted using principles derived from studies on the influence of salts on the growth of higher plants. Nitrification showed the influence of individual salt species, with NaCl being the most toxic. Total microbial activity, as measured by CO₂ evolution is much more tolerant of osmotic stress and shows no definite individual salt effects.

¹ Contribution from Colorado Agr. Exp. Sta., Fort Collins. Scientific Journal Series 813. This work was supported in part by funds from Western Regional Research Project W-31.

² Professor and Graduate Student respectively. The latter is now Chemist, Northern Plains Branch, Soil and Water Conservation Research Division, ARS, USDA, Lincoln, Nebr.

Received for publication January 30, 1963. Accepted for publication May 3, 1963.