Table 2.
Seasonal cumulative CH4 and N2O emissions and rice grain yield under different water management strategies during the experimental period 2014–2015.
| Treatments | Early rice season | Late rice season | Fallow season | |||||
|---|---|---|---|---|---|---|---|---|
| CH4 (kg CH4 ha−1) | N2O (kg N2O ha−1) | Yield (kg ha−1) | CH4 (kg CH4 ha−1) | N2O (kg N2O ha−1) | Yield (kg ha−1) | CH4 (kg CH4 ha−1) | N2O (kg N2O ha−1) | |
| F-RF | 55.2 ± 5.4 c | 0.12 ± 0.02 a | 3850 ± 83 b | 56.5 ± 13.5 c | 0.20 ± 0.03 a | 5101 ± 247 b | 0.5 ± 0.1 c | 0.31 ± 0.09 a |
| F-D-F | 131.4 ± 5.7 b | 0.07 ± 0.01 b | 3964 ± 99 b | 242.1 ± 9.8 b | 0.04 ± 0.02 b | 6280 ± 179 a | 2.5 ± 0.2 b | 0.18 ± 0.03 a,b |
| CF | 249.3 ± 14.3 a | 0.00 ± 0.01 c | 4636 ± 135 a | 505.3 ± 18.8 a | −0.01 ± 0.00 c | 6250 ± 186 a | 50.2 ± 6.8 a | 0.00 ± 0.01 b |
Mean ± SE. The different letters following each value in the same column indicate significant differences among treatments (P < 0.05). See descriptions of CF, F-D-F, and F-RF from Table 1.