ESN Slow Release N Fertilizer Medium Yield Zone (35 to 55 bu/ac)

Trial Type

N Fertilizer, Medium Yield

General Stats

County
Yankton
Replications
4
Crop
Soybean
Seed Brand
Curry
Variety
1284 RR2
Relative Maturity
2.8
Tillage
Conventional Till
Irrigated
No Value
Drain Tile
No Value
Previous Crop
Corn
Row Sapcing
30"
Plant Population
150000
Plant Date
22/05/2018
Cover Crop
No Value
Seed Treatment
No Value

Soil Stats

Soil Type
Fine
Soil pH
4.0
Organic Matter
No Value

Methodology

ESN (44-0-0) was applied at 20 lbs-N/ac by a hand spreader.  The ESN was applied at R1 in late July.

Results

The ESN fertilizer increased average yield by 5.27 bu/ac.  However, this increase was not significant.  An increase in yield of 7.20 bu/ac would be required to be significant at a 90% confidence level.  Future research is needed to confirm this concept of applying slow release nitrogen fertilizer to soybeans.

 

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.

Rainfall

Temperature

Applications

Fertilizer Applications

Insecticide Applications

Fungicide Applications

Herbicide Applications