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ProCrop |
Nutrient Recommendations for Sweet Corn
Soil Test Phosphorus, ppm
| Soil N plus | VL | L | M | H | VH | ||
| Yield | fertilizer | Bray-1 | 0-5 | 6-10 | 11-15 | 16-20 | 21+ |
| goal | N required | Olsen | 0-3 | 4-7 | 8-11 | 12-15 | 16+ |
| tons/a | lb/acre-2' | lb P2O5/acre | lb P2O5/acre | lb P2O5/acre | lb P2O5/acre | lb P2O5/acre | |
| 4 | 70 | 40 | 30 | 15 | 0 | 0 | |
| 6 | 110 | 60 | 40 | 20 | 10 | 0 | |
| 8 | 145 | 75 | 55 | 30 | 15 | 0 | |
| 10 | 180 | 95 | 70 | 35 | 15 | 0 |
Soil Test Potassium, ppm
| Soil N plus | VL | L | M | H | VH | ||
| Yield | fertilizer | Bray-1 | 0-40 | 41-80 | 81-120 | 121-160 | 161+ |
| goal | N required | Olsen | |||||
| tons/a | lb/acre-2' | lb K2O/acre | lb K2O/acre | lb K2O/acre | lb K2O/acre | lb K2O/acre | |
| 4 | 70 | 75 | 50 | 30 | 10 | 0 | |
| 6 | 110 | 110 | 80 | 45 | 25 | 0 | |
| 8 | 145 | 145 | 105 | 60 | 20 | 0 | |
| 10 | 180 | 180 | 130 | 80 | 25 | 0 |
Nitrogen recommendation = 18 YG - STN - SDA - PCC
Bray-I P recommendation = (11.000-0.533 STP)YG
Olsen P recommendation = (11.0-0.7 STP)YG
Potassium recommendation = (22.00-0.13 STK)YG
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