Fertilizer type | Non-renewable energy input per kg of produced nitrogen [kWh/ kg N] | Greenhouse gases emissions during production [t CO 2 eq. ha −1 ] | N 2 O emissions after application [kg CO 2 eq. kg −1 of applied fertilizer] | N 2 O emissions after application [kg CO 2 eq. kg −1 of inorganic N fertilizer equivalent] | Sum of greenhouse gas emissions [kg CO 2 eq. kg −1 of inorganic N fertilizer equivalent] |
---|---|---|---|---|---|
Digestate, N derived from SNFa | - | - | 2.98b | 3.73 | 3.73 |
Inorganic nitrogen | 16.17 | 6.032 | 2.98b | 2.98 | 9.01 |