Weed control is becoming a larger issue in South Dakota with the emergence of herbicide-resistant weeds. Herbicide resistant and difficult to control weeds are causing yield loss and significant management costs to soybean farmers. Project objectives include: surveying growers to determine new and old weed problems; establishing demonstration plots to provide today's best options for weed management; examining Palmer amaranth biology and competitiveness; studying the interaction of drift rates of auxin-type herbicides on nodulation and nitrogen fixing ability in non-resistant soybean cultivars; and determining if nigrogen application can mitigate yield loss.
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The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.