NH3 Application at V3 in High Yield Zone (>55 bu/ac)

Trial Type

N Fertilizer

General Stats

County
Lake
Replications
2
Crop
Soybean
Seed Brand
No Value
Variety
No Value
Relative Maturity
1.9
Tillage
Ridge Till
Irrigated
No Value
Drain Tile
No Value
Previous Crop
Corn
Row Sapcing
30"
Plant Population
150000
Plant Date
06/05/2015
Cover Crop
No Value
Seed Treatment
Insecticide

Soil Stats

Soil Type
Medium
Soil pH
4.0
Organic Matter
No Value

Methodology

Treatment Information
Two strips of NH3 (82-0-0) were applied at 75 lbs N ac-1 on June 8 at V3. This fertilizer was applied in a band between each row at 4-6” deep.

Agronomic Information and Weather
Soybeans with a 1.9 maturity rating were planted in 30” rows on May 6 in a ridge-till system. The seed was not treated or inoculated. The previous crop was corn. A foliar insecticide was applied at R3. The field received approx. 6.4 in. of rain and accumulated 1830 GDDs from June 1 through August 31. This was drier and warmer than the average of 10.1 in. and 1887 GDDs.

Results

Results
On average, NH3 did not increase yields. However, it appears that yield response may have occurred through the highest yielding zones of the field. These results were consistent with another nearby trial in Lake Co. Soybean yield response to N has been observed in several SD on-farm trials over the past three years. However, responses across an entire field have been rare. Therefore, N trials in soybeans are needed in the future to better-understand this system.

Rainfall

Temperature

Applications

  Event Date Type Application Method Amount
V3 08/06/2016 N Side Dress 75 lbs / acre (actual)
No Value No Value No Value No Value
  Brand Event Date Pest
R3 No Value No Value No Value No Value

Fertilizer Applications

  Event Date Type Application Method Amount
V3 08/06/2016 N Side Dress 75 lbs / acre (actual)
No Value No Value No Value No Value

Insecticide Applications

  Brand Event Date Pest
R3 No Value No Value No Value No Value

Fungicide Applications

Herbicide Applications