Submitted to: Research Report North Central Weed Science Society United States
Publication Type: Other
Publication Acceptance Date: 12/20/1996
Publication Date: N/A
Citation: N/A Interpretive Summary:
Technical Abstract: The purpose of this study was to evaluate weed control with glufosinate resistant soybeans. The study was established at the University of Illinois South Farm, Urbana. The soil was a Drummer silty clay loam with a pH of 6.7 and 5.3% organic matter. Glufosinate resistant soybeans were planted 1.0 inch deep on May 24 in 30-inch rows. Treatments were arranged in randomized complete blocks with 3 replications of plots 10 by 30 feet. Herbicides were applied with a CO2 backpack sprayer delivering 20 gpa and equipped with 8003 flat fan nozzles for preemergence and 8002 flat fan nozzles for postemergence applications. Glufosinate caused slight injury and combinations with thifensulfuron were particularly injurious. glufosinate applied alone provided excellent control of giant foxtail, Pennsylvania smartweed, and smooth pigweed. Sequential applications of Glufosinate or the addition of imazethapyr significantly increased control of tall morningglory.