Northern Research and Demonstration Farm
Effective weed management is critical for profitable crop production. A series of experiments was conducted to evaluate the effectiveness of herbicides available for corn and soybean production. One experiment compared Authority and Valor, two preemergence herbicides labeled for controlling broadleaf weeds in soybean. Both products have the potential to cause significant injury under certain environmental conditions.
Iowa State University
Hartzler, Robert G., "Weed Management Studies" (2005). Iowa State Research Farm Progress Reports. 1256.