2014
Enhancing Liberty with adjuvants
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Contributor/Checkoff:
North Dakota Soybean Council
Category:
Sustainable Production
Keywords:
AgricultureCrop protectionHerbicide
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
Richard K Zollinger, North Dakota State University
Co-Principal Investigators:
Angela Kazmierczak, North Dakota State University
Devin Wirth, North Dakota State University
+1 More
Project Code:
Contributing Organization (Checkoff):
North Dakota Soybean Council
(n/a)
Institution Funded:
North Dakota State University
(n/a)
Brief Project Summary:

Liberty Link soybean is a technology that is available to growers in addition to Roundup Ready Soybeans. Liberty herbicide is similar to glyphosate or Roundup herbicide with similar physical properties and kills most plants that are sprayed. It has significant activity on both grass and broadleaf plants and is most active during sunlight and warm/hot temperatures. It is different from Roundup by not translocating throughout plants, but shows contact herbicide type symptoms where spray droplets land on leaves.

Adjuvants are products added to the spray tank that enhances herbicide activity. This is done by helping keep the herbicide more uniform in the spray tank, capturing more droplets...

Unique Keywords:
#, #libertylink? soybeans, #weed control, #weed research
Information And Results
Project Deliverables

Final Project Results

Generally, nonionic surfactants and oil adjuvants did NOT increase weed control when added to Liberty, and in some examples, antagonized control. AMS enhanced Liberty more than any other adjuvant or adjuvant class.

Generally, most other adjuvants did not influence herbicide activity or had a negative effect. These findings show the addition of AMS is essential to herbicide activity. The recommended rate of AMS with Liberty is 3 pounds per acre. NDSU research (not included) shows this rate to be minimum and rates greater than 3 pounds per acre will provide additional herbicide activity from Liberty.

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.