Leaching of dicamba in a coastal plain soil
- 1 March 1996
- journal article
- research article
- Published by Taylor & Francis in Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology
- Vol. 31 (3) , 505-517
- https://doi.org/10.1080/10934529609376371
Abstract
Dicamba leaching to groundwater was studied for three years on an Evesboro loamy sand soil. Dicamba was applied to conventional tillage and no‐tillage corn post‐emergence at a rate of 0.56 kg/ha. The first year, dicamba was detected in all of the monitoring wells, 12 days after it was applied. Concentrations ranged from 2.0 to 37.0 μg/L. A total of 54 mm of rainfall occurred in the 12 days. In years two and three, dicamba was detected infrequently in the groundwater. The highest concentration was 4.9 μg/L. Other researchers have also found dicamba will move below the root zone if sufficient rainfall or irrigation occurs before significant degradation occurs.Keywords
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