Seeding Rate/ Varieties/ Row Spacing, High Yield
Eight strips of Asgrow 18×9 were planted at 220K and 160K across a hilltop on May 21, 2018 to see if increasing seeding rates on upland areas increases yield.
We have seen instances where increased seeding rates on upland positions can increase yields. However in this trial, increasing the seeding rate above normal did not significantly increase yields on upland positions. A yield difference of 1.14 bu/ac would be required for the yields be to significantly different at the 90% confidence level.
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.