Trial Type
N Fertilizer, Medium Yield
General Stats
Soil Stats
Methodology
Golden Harvest S26P3 maturity group 2.6 soybeans were planted on May 25, 2018 at 140,000 seeds/acre in 30 inch rows. Factor® (urease inhibitor) coated Urea (46-0-0) was applied at 20 lbs-N/ac by a hand spreader on August 24th, 2018. The small plots were harvested and weighed in a weigh wagon.
Results
The nitrogen fertilizer decreased yield by 1.21 bu/ac. This yield decrease was not significantly different than the unfertilized controls (p=0.835). High variance also was noticed (Table 1) between plots. More research is required to determine if late season nitrogen application can increase yields.
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.
