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 O'Connor, G. A. Articles by Wierenga, P. J. Search for Related Content PubMed Articles by O'Connor, G. A. Articles by Wierenga, P. J. Agricola Articles by O'Connor, G. A. Articles by Wierenga, P. J.

Predicting 2,4,5-T Movement in Soil Columns¹

ABSTRACT

A solute model developed by van Genuchten and Wierenga was used to calculate 2,4,5-T effluent data from soil columns. The model had been previously shown to adequately predict effluent data given model parameters curve fit to a portion of the effluent curve. The present work shows that 2,4,5-T effluent curves may be adequately predicted without prior knowledge of the effluent curves for a particular soil column given: (i) model parameters derived from 2,4,5-T effluent curves for other soil columns, or (ii) model parameters obtained from tritium effluent curves for the same columns. The data suggest that once the physical model parameters have been characterized for a soil, reasonable predictions of 2,4,5-T (and perhaps other solutes) transport can be made given the adsorption coefficient for the solute.

Key Words: pesticides • herbicide mobility • solute transport • effluent curves • breakthrough curves • solute movement models

¹ Journal Article No. 569, New Mexico Agric. Exp. Stn., Las Cruces, NM 88003.

² Associate Professor, New Mexico State Univ.; Research Associate, Princeton Univ.; and Associate Professor, New Mexico State Univ., respectively.

Received for publication August 20, 1975.