Table 2. Statistical summary of modelled net-N2O-N emissions (Kg N ha-1) and annual N2O-EF (%) across the tropical dataset reported in Table S1, and distinct among continents, countries, crop types, and fertilizer types.
| Net-N2O-N | Annual N2O-EF | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| C.I. | C.I. | ||||||||
| Mean | Median | Lower | Upper | Mean | Median | Lower | Upper | ||
| Continent | Africa | 0.8 | 0.6 | 0.1 | 4.5 | 1.4 | 1.4 | 0.3 | 5.3 |
| Asia | 0.8 | 0.4 | −2.7E-03 | 24.6 | 1.1 | 1.0 | 0.1 | 7.8 | |
| Australia | 1.3 | 1.4 | 5.4E-02 | 4.3 | 0.9 | 0.9 | 0.2 | 2.6 | |
| Central & S. America | 2.1 | 0.9 | 4.0E-05 | 18.9 | 1.3 | 1.2 | 0.1 | 6.7 | |
| Country | Australia | 1.3 | 1.4 | 5.4E-02 | 4.3 | 0.9 | 0.9 | 0.2 | 2.6 |
| Brazil | 1.4 | 0.8 | 4.0E-05 | 14.9 | 1.2 | 1.3 | 0.1 | 5.2 | |
| China | 1.1 | 0.9 | 0.2 | 4.4 | 0.9 | 0.7 | 0.4 | 2.4 | |
| Costa Rica | 3.9 | 3.2 | 0.4 | 18.9 | 2.1 | 1.5 | 0.4 | 6.7 | |
| India | 0.6 | 0.4 | −2.7E-03 | 5.8 | 1.2 | 1.0 | 0.1 | 7.8 | |
| Indonesia | 0.7 | 0.5 | 7.3E-02 | 6.1 | 1.3 | 1.3 | 0.2 | 4.0 | |
| Kenya | 0.8 | 0.6 | 0.2 | 2.7 | 1.4 | 1.4 | 0.6 | 3.1 | |
| Malaysia | 11.2 | 11.2 | 3.9 | 24.6 | 0.7 | 0.7 | 0.2 | 1.5 | |
| Mali | 0.6 | 0.6 | 0.2 | 1.4 | 1.3 | 1.3 | 0.4 | 2.8 | |
| Philippines | 0.5 | 0.5 | 0.2 | 1.2 | 1.0 | 1.0 | 0.4 | 1.9 | |
| Puerto Rico | 3.8 | 2.2 | 2.4E-02 | 15.7 | 0.7 | 0.8 | 0.3 | 1.6 | |
| Thailand | 0.2 | 0.2 | 6.2E-02 | 0.5 | 1.3 | 1.1 | 0.4 | 4.1 | |
| Zimbabwe | 0.8 | 0.8 | 0.1 | 4.5 | 1.5 | 1.5 | 0.3 | 5.3 | |
| Crop Type | AC | 0.8 | 0.6 | 1.6E-02 | 4.5 | 1.2 | 1.1 | 0.1 | 7.8 |
| R | 0.6 | 0.3 | −2.7E-03 | 5.8 | na | na | na | na | |
| PC | 2.8 | 1.5 | 4.0E-05 | 24.6 | 1.2 | 0.8 | 0.1 | 6.7 | |
| Fertilizers | AN | 2.4 | 1.3 | 8.9E-02 | 18.9 | 2.1 | 1.8 | 0.6 | 6.7 |
| Other N Fertilizers | 1.1 | 0.6 | 5.3E-04 | 24.6 | 1.1 | 1.0 | 0.2 | 7.8 | |
| Urea & NI | 0.3 | 0.3 | −2.7E-03 | 2.3 | 0.7 | 0.8 | 0.1 | 2.9 | |
C.I. corresponds to the 95% confidence interval range. Crop types are classified in AC (annual crops including non-flooded rice), R (flooded rice), and PC (perennial crops). Fertilizer types are grouped in AN (Ammonium nitrate), Urea & NI (Urea with N inhibitor), and Other N Fertilizers (which includes Urea, Urea with additives, Ammonium, Potassium Sodium and Calcium nitrate, mixture of various synthetic N fertilizers, animal manure and other organic fertilizers, Organic mix with Mineral-N). The N2O-EF in flooded rice crop (R) was not calculated as the subpopulation of R was characterized by only studies with length shorter than six months.