Table 3
Inputs used for sunflower cultivation in France, nitrous oxide and GHG emissions.
| Inputs and nitrous oxide emissions | GHG emissions (kg eq. CO2 ha−1) | |
|---|---|---|
| Mineral N fertilizers | 38 kg N ha−1 | 200.6 |
| Mineral P fertilizers | 29 kg P2O5 ha−1 | 16.6 |
| Mineral K fertilizers | 22 kg K2O ha−1 | 11.6 |
| Pesticides | 3 kg ha−1 | 23.1 |
| Seeds | 4 kg ha−1 | 8.1 |
| Fuel | 67 l ha−1 | 206.0 |
| Seed drying | 354 MJ ha−1 | 9.3 |
| Nitrous oxide | 0.91 kg N-N2O ha−1 | 422.2 |
| Total | 897.6 | |
GHG emissions were calculated from mean input applications in France (BIO IS, 2010), the emission factors for the production and transportation of inputs used in France and from the tier 1 method of IPCC to estimate nitrous oxide emissions (from De Klein et al., 2006).
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