Trial Type
N Fertilizer
General Stats
County
Codington
Replications
2
Crop
Soybean
Seed Brand
No Value
Variety
No Value
Relative Maturity
1.0
Tillage
Conventional Till
Irrigated
No Value
Drain Tile
No Value
Previous Crop
Corn
Row Sapcing
30"
Plant Population
150000
Plant Date
20/05/2014
Cover Crop
No Value
Seed Treatment
No Value
Soil Stats
Soil Type
Fine
Soil pH
4.0
Organic Matter
No Value
Methodology
ESN was broadcast into drilled soybeans at 75 lbs. N/acre in late-June when the crop was around the V4 growth stage. The site received approx. 11.5 in. of rain and accumulated 1449 GDD’s from June 1 through August 31. This was approximately 1.3 in. more precip. and 246 less GDD’s than the 30 yr. avg.
Results
Overall, there was no yield response to ESN (Table 1). There were small segments with 5-10 bu/ac increases on the Kranzburg-Brookings silty clay loams, especially at higher elevations. ESN costs approximately $525 per ton. Applying this rate could cost close to $45/acre in product alone.
Rainfall
Temperature
Applications
| Event Date | Type | Application Method | Amount | |
|---|---|---|---|---|
| V(n) | 28/06/2017 | N | Surface broadcast | 75 lbs / acre (actual) |
No
No
No
Fertilizer Applications
| Event Date | Type | Application Method | Amount | |
|---|---|---|---|---|
| V(n) | 28/06/2017 | N | Surface broadcast | 75 lbs / acre (actual) |
Insecticide Applications
No
Fungicide Applications
No
Herbicide Applications
No