2013
Managing glyphosate-resistant Kochia in soybeans
Contributor/Checkoff:
Category:
Sustainable Production
Keywords:
AgricultureCrop protectionHerbicide
Lead Principal Investigator:
Curtis Thompson, Kansas State University
Co-Principal Investigators:
Dan O'Brien, (not specified)
Dallas Peterson, Kansas State University
Phillip Stahlman, Kansas State University
+2 More
Project Code:
Contributing Organization (Checkoff):
Institution Funded:
Brief Project Summary:

Glyphosate-resistant species in an area can have dramatic negative economic and environmental consequences, especially if the resistant species is easily dispersed. Growers affected by resistant weeds may be forced to switch to more costly herbicide programs compared to the cost of glyphosate or to less profitable crops or implement more tillage at the expense of soil and water conservation.

Unique Keywords:
#weed control, #weed control-herbicide resistance, #weed research
Information And Results
Project Deliverables

Final Project Results

Field trials were conducted at the Agricultural Research Center-Hays, the Northwest Research-Extension Center at Colby, and on private land near Lenora. The trials at Colby and Lenora were abandoned due to poor crop and weed establishment and lack of soil-applied herbicide activation due to lack of rainfall. At Hays, rainfall was sufficient for crop and weed establishment and herbicide activation, but lack of summer rainfall and extreme temperatures prevented normal crop growth and mid-season weed emergence. Consequently, weed control ratings later than early July were believed to be unreliable and are not reported. Also, soybean plants produced few harvestable seed, thus return on investment was not determined as originally planned.

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.