期刊
CROP PROTECTION
卷 28, 期 6, 页码 539-542出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.cropro.2009.02.004
关键词
Bentazon; Chlorimuron-ethyl; Dicamba/diflufenzopyr; Imazethapyr; Synergism
类别
资金
- Ontario Soybean Growers
- Canada-Ontario Research and Development Program
Five field experiments were conducted in 2007 to determine the effect of simulated dicamba/diflufenzopyr drift followed by postemergence applications of chlorimuron-ethyl, imazethapyr or bentazon on soybean (Glycine max Merr.) crop injury, dry weight, height and yield. In the absence of a postemergence herbicide, as the dose of simulated dicamba/diflufenzopyr increased there was in increase in soybean injury and a decrease in dry weight, height and yield. The application of registered postemergence herbicides following simulated dicamba/diflufenzopyr drift resulted in a synergistic increase in crop injury in some environments. There was no synergistic response in respect to dry weight and height when simulated drift was followed by postemergence herbicides. A synergistic yield response was observed with yield being decreased 4-7% more than expected due to simulated dicamba/diflufenzopyr followed by the application of chlorimuron-ethyl. No synergistic yield response was observed for dicamba/diflufenzopyr drift followed by either imazethapyr or bentazon. (c) 2009 Elsevier Ltd. All rights reserved.
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