Southeast Research and Demonstration Farm
This ongoing project is designed to study the effects of delaying post-applied Roundup Ultra weed control in Roundup Ready soybeans. Discussion about conducting this project began in 1996 before most producers were growing these soybeans. However, the Southeast Iowa Agricultural Research Association (S.E.I.A.R.A.) board of directors saw the value of this technology as a research tool because, for the first time, there was a herbicide able to kill weeds at most growth stages. Consequently, research could be conducted to see the effects of delayed weed control without having to physically remove large weeds that could not be controlled with other herbicides. This meant that this project could be conducted much more easily and cheaply.
Iowa State University
Southeast Iowa Agricultural Research Association and Van Dee, Kevin, "Soybean Weed Competition Study" (2002). Iowa State Research Farm Progress Reports. 1680.