Trial Type
Seeding Rate/ Varieties/ Row Spacing, Medium Yield
General Stats
Soil Stats
Methodology
Methodology:
Two strips were planted to an average of 180,000 seeds/acre and compared to the increased seeding rate of 200,000 seeds/acre.
Results
Results:
The 180k seeds/acre rate yielded 2.08 bu/ac better than the 200,000 seeds/acre rate in medium yielding soybeans (35-55 bu/ac), but the increase was not significant at the 95% confidence interval (CI). Lower seeding rates (130k and 160k) were not tested against 180k seeds/acre in the medium yielding zone of this field. However, they were evaluated in the higher yielding portions. Please see links to these trials below.
refer to reports:
Brookings County, 2017, 160K vs. 200K Seeding Rate (High Yield Zone >55bu/A)
Brookings County, 2017, 130K vs. 160K Seeding Rate (High Yield Zone >55 bu/A)
Acknowledgements:
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.
