2020
Controlling Weeds in Soybeans FY20
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Contributor/Checkoff:
South Dakota Soybean Research and Promotion Council
Category:
Sustainable Production
Keywords:
AgricultureCrop protectionHerbicide
Parent Project:
Controlling weeds in soybean
Lead Principal Investigator:
Sharon Clay, South Dakota State University
Co-Principal Investigators:
Project Code:
Contributing Organization (Checkoff):
South Dakota Soybean Research and Promotion Council
$67,096
Institution Funded:
South Dakota State University
$67,096
Brief Project Summary:

Herbicide-resistant and difficult-to-control weeds cause yield loss and costs to soybean farmers. In this project, researchers will establish demonstration plots to provide today’s best options for weed management; assess herbicide treatments on glyphosate-resistant waterhemp using combinations of herbicide chemistries; and examine agronomic traits of Xtend soybeans at four eastern locations planted at 3 timings. The information gained will be presented to soybean farmers through outreach and education materials at applicator trainings, the Soy100 event, and field days.

Key Benefactors:
farmers, agronomists, extension specialists

Information And Results
Project Deliverables

1. The demonstration plots will be utilized for grower and professional agronomist tours and training events. Data taken from the plots will include weed efficacy, crop injury ratings, and yield. Cost of treatment will also be calculated. Results will be printed in the annual SDSU Extension WEED Project Data book and will also be used in updating the weed control section of the SDSU Pest Management Guide-Soybeans and IGrow Soybean Production manual. Pictures of the plots and plot data will be used at winter meetings around the state. Examples of meetings that data will be used at include Commercial Applicator Training, Private Applicator Training, Row Crop Clinics, IPM Consultant Training and Winter IPM Short Course.

The demonstration plots will be utilized for grower and professional agronomist tours and training events. Data taken from the plots will include weed efficacy, crop injury ratings, yield, and cost of treatment. Results will be printed in the annual SDSU Extension WEED Project Data book and will also be used in updating the weed control section of the SDSU Crop Protection Guide and IGROW soybean manual.

2. The glyphosate resistant plots will be utilized for grower and professional agronomist tours and training events. Data taken from the plots will include weed efficacy, crop injury ratings, and yield. Cost of treatment will also be calculated. Results will be printed in the annual SDSU Extension WEED Project Data book and will also be used in updating the weed control section of the SDSU Crop Protection Guide-Soybeans and IGrow Soybean Production manual. Pictures of the plots and plot data will be used at winter meetings around the state. Examples of meetings that data will be used at include Commercial Applicator Training, Private Applicator Training, Row Crop Clinics, IPM Consultant Training and Winter IPM Short Course.

Final Project Results

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.