Table 1.
Aboveground biomass, grain yield, and seasonal methane emission for the 5-year experiment at Maligaya, Nueva Ecija, Philippines [after Corton et al. (13)]
| Year
|
Aboveground biomass, t⋅ha−1 | Grain yield, t⋅ha−1 | Harvest index | Seasonal CH4 emission, kg of CH4-C ha−1 | ||||
|---|---|---|---|---|---|---|---|---|
| DS | WS | DS | WS | DS | WS | DS | WS | |
| 1994 | 12.63 | 11.46 | 8.36 | 5.22 | 0.66 | 0.46 | 71 | 200 |
| 1995 | 13.79 | 13.92 | 6.54 | 3.30 | 0.47 | 0.24 | 153 | 389 |
| 1996 | 15.35 | 14.60 | 7.30 | 5.17 | 0.48 | 0.35 | 120 | 204 |
| 1997 | 12.50 | 12.24 | 7.91 | 5.36 | 0.63 | 0.44 | 67 | 261 |
| 1998 | 16.40 | 8.00 | 0.49 | 68 | ||||
DS, dry season; WS, wet season.
*
Average of three replicate plots.