| Rice systems | Période de Culture (jours) | During season | Présaison | Type Amendement | |
| SRC | Caracteristics | 120 | Permanantly flooded | Pré-saison flooded >30 days | Straw left on the ground |
| IPCC Factors | 1.19 kg CH4∙ha−1∙d−1 | 1 | 2.41 | 3.13 | |
| SRI | Caracteristics | 106 | Flooded intermittently —simple aeration | Not flooded pre-season (<180 days) | Straw left on the ground |
| IPCC Factors | 1.19 | 0.71 | 1 | 3.13 | |