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| A. Ontario Nitrogen Calculator Input and Recommendation |
| Yield Expectation (bu/ac): |
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| Soil Texture: |
Sandy Loam |
| CHU rating for field: |
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| Previous Crop: |
Soybeans |
| Price of Corn ($/bu): |
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| Cost of Nitrogen ($/lb): |
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| Total N Recommendation (lbs N/ac) (Pre-Plant): |
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| Total N Recommendation (lbs N/ac) (SideDress): |
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| B. Nitrogen Applications |
| N applied as starter (lbs N/ac): |
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| N applied as pre-plant broadcast (lbs N/ac): |
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| N applied as sidedress (lbs N/ac): |
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| C. Ontario Soil Nitrate Testing Input and Recommendation |
| Sampling Date (mm/dd/yyyy): |
Crop Stage (i.e.V3) |
Soil Nitrate (PPM) |
| 1. 05/10/2017 |
Planting |
2.20 |
| 2. 05/24/2017 |
V1-V2 |
4.70 |
| 3. 06/06/2017 |
V3-V4 |
5.40 |
| 4. 06/19/2017 |
V6 |
9.20 |
| 5. 07/04/2017 |
V9 |
4.50 |
PSTN Nitrogen Recommendation (lbs N/ac):
(based on sample date 3) |
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| D. Corn Yield Response to Nitrogen |
| Nitrogen Non-Limiting Corn Yield (bu/ac): |
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| Zero Nitrogen Corn Yield (bu/ac): |
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| Yield response to Nitrogen (difference): |
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| Estimated Optimum N Rate (lbs N/ac)*: |
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| * the Optimum N rate is that rate that if applied in spring would have resulted in the highest economic return for Corn. |
