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 Dubey, H. D. Articles by Freeman, J. F. Search for Related Content PubMed Articles by Dubey, H. D. Articles by Freeman, J. F. Agricola Articles by Dubey, H. D. Articles by Freeman, J. F.

Effect of Soil Properties on the Persistence of Linuron and Diphenamid in Soils¹

Initial and residual toxicity of linuron and diphenamid in 11 soils of Kentucky was studied for 17 months under greenhouse conditions, using a bioassay technique. Correlation of ED₅₀ values for these herbicides with the physical and chemical properties of the soils was determined.

Organic matter content showed the highest and most consistent correlation with ED₅₀ values. Exchangeable sodium also showed significant correlation with ED₅₀ but only at certain periods of the study. Amount of clay in the soils was not correlated with ED₅₀ values even though the cation exchange capacity and ED₅₀ were correlated. The kind of clay might have some influence on the results obtained in the study. Organic matter content seemed to play the greatest role in the disappearance of linuron and diphenamid in soils.

² Formerly Research Associate, University of Kentucky (now Associate Soil Microbiologist, Agricultural Experiment Station, University of 'Puerto Rico, Rio 'Piedras), Professor, and Associate Professor, University of Kentucky, Lexington, respectively.

Received for publication May 22, 1965.