Fungicide, Medium Yield
Wensman 3143 1.4 maturity group soybeans were planted on May 22, 2017 at 160,000 seeds/acre in 15 inch rows. Aproach® fungicide was applied at R1 on July 30, 2018 at 9 ounces of Aproach® an acre in 20 gallons of water per acre. Aproach® was applied for a second time on August 7, 2018 at the same rate. Aproach® is a group 11 fungicide.
In this trial, Aproach® increased yield by 4.62 bu/ac. This yield increase was not significant. A yield increase of 10.86 bu/ac would be required for there to be significant differences at the 90% confidence level. These results showed lower yield increases when compared to previous studies.
Funding for this research project was provided by the South Dakota Soybean Research and Promotion Council. The authors would also like to thank the soybean producers who participated in this project.