2016
Foliar Potential Yield Enhancements
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Contributor/Checkoff:
North Carolina Soybean Producers Association
Category:
Sustainable Production
Keywords:
Field management Nutrient managementSoil healthTillageYield trials
Parent Project:
This is the first year of this project.
Lead Principal Investigator:
James E Dunphy, North Carolina State University
Co-Principal Investigators:
Project Code:
16-013
Contributing Organization (Checkoff):
North Carolina Soybean Producers Association
(n/a)
Institution Funded:
North Carolina State University
(n/a)
Brief Project Summary:

Periodically, new products or new uses of existing products, appear on the market for soybeans and receive enough favorable publicity to generate questions from producers and suppliers about their potential profitability. It is usually difficult to answer these questions confidently and accurately, without reliable in-state test results. This extension project incorporates findings from replicated on-farm tests of new or unique foliar products that may increase soybean yields and profits. Trials seek to improve the farm level profitability of producing soybeans in North Carolina, investigate potential of these products, train county extension personnel and support NCSU’s Soybean Extension On-Farm Test and Demonstration program.

Key Benefactors:
farmers, agronomists, extension agents

Information And Results
Project Deliverables

Final Project Results

Updated October 10, 2019:

View uploaded report PDF file

North Carolina’s soybean farmers are provided numerous opportunities to buy a product to apply to their soybeans in hopes it will improve yields and profits. Some have credible evidence, outside of the company claims, that yields and profits can be improved. Those that do were tested in Alamance, Randolph, and Surry/Forsyth/Stokes in 2016. The product that produced the greatest yield increase, and profit increase, was the foliar fungicide Quadris Top,
which improved yields by 4.6 Bu/A, and profits by about $20/A. (Averaged over the 11 locations in which this product has been tested in 2013-16, the yield increase was 3.1 Bu/A, and the profit increase was about $5/A.)

The product that generated the next biggest yield increase was actually two products, applied 2-4 weeks apart. The yield increase of 2.8 Bu/A (1.7 BuA in 2013-16) was not profitable with soybeans selling for $10.00/Bu. Nor did any of the other products tested produce a profitable yield increase.

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.