Table 5 Average methane yield of cocksfoot grass and standard deviation
Fertiliser type | Mineral N fertiliser | Digestate | ||||||
|---|---|---|---|---|---|---|---|---|
N application rate (kg ha−1 year−1) | 0 | 180 | 360 | 90 | 180 | 270 | 360 | 450 |
Scenario | SC1 | SC2 | SC3 | SC4 | SC5 | SC6 | SC7 | SC8 |
Methane yield (l kg−1 DM) | 317.4 e ± 10.8 | 378.5 b ± 8.3 | 395.3 a ± 8.5 | 381.9 b ± 8.9 | 352.4 c ± 10.2 | 345.1 cd ± 4.1 | 342.8 cd ± 7.9 | 336.4 d ± 5.3 |