Bromide Transport under Sprinkler and Ponded Irrigation
Publication: Journal of Irrigation and Drainage Engineering
Volume 120, Issue 6
Abstract
Chemical irrigation is being used increasingly as a means of applying agricultural chemicals, but the effects of different irrigation practices on the movement and distribution of these chemicals in the soil are not well understood. This paper reports the results of a field study where bromide is applied as a tracer under both sprinkler and ponded irrigation. The travel‐depth bromide concentration curves under sprinkler irrigation were smooth and unimodal, with very little variability between soil cores. For ponded irrigation, however, the curves were bimodal and showed much greater variability between cores. The writers attribute the differences in shape and variability to the presence of preferential flow in the ponded case. Results of this study have important implications for ground‐water pollution potential and monitoring of the vadose zone.
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Information
Published In
Journal of Irrigation and Drainage Engineering
Volume 120 • Issue 6 • November 1994
Pages: 1086 - 1097
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Sep 13, 1993
Published online: Nov 1, 1994
Published in print: Nov 1994
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