| Source | CH4 | N2O | CO2 | C Footprint (kg CO2-eq ha−1) | contribution % |
| -------(kg CO2-eq ha−1)------- | |||||
| Field preparation | 2.85 | 0.122 | 58.1 | 61.1 | 4.0 |
| Harvesting | 7.85 | 0.335 | 170.4 | 178.6 | 11.7 |
| Irrigation |
|
| 224.0 | 224.0 | 14.7 |
| Milling |
|
| 81.6 | 81.6 | 5.4 |
| Transportation | 10.9 | 0.465 | 236.3 | 247.7 | 16.3 |
| Fertilizer |
| 595.8 | 37.1 | 632.9 | 41.6 |
| Pesticides |
|
| 94.2 | 94.2 | 6.3 |
| TOTAL | 21.6 | 596.2 | 901.7 | 1520.1 | 100.0 |