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Table 11 Average manure composition on monthly basis
| Parameters | June | July | August | September | October |
|---|---|---|---|---|---|
| CH4 concentration (ppm) | 2.2 d* ± 0.0 | 2.8 c ± 0.2 | 2.9 bc ± 0.2 | 3.3 ab ± 0.2 | 3.5 a ± 0.7 |
| CO2 concentration (ppm) | 380.2 b ± 5.9 | 486.2 a ± 19.4 | 459.3 a ± 21.5 | 404.0 b ± 19.0 | 368.6 b ± 14.3 |
| N2O concentration (ppm) | 1.1 a ± 0.2 | 1.0 a ± 0.2 | 1.1 a ± 0.2 | 0.6 b ± 0.0 | 0.4 b ± 0.0 |
| CH4 FR (g m-2d-1) | 1.1 d ± 0.0 | 1.4 c ± 0.1 | 1.4 bc ± 0.1 | 1.6 ab ± 0.1 | 1.7 a ± 0.3 |
| CO2 FR (g m-2d-1) | 507.6 b ± 7.9 | 649.2 a ± 26.0 | 613.3 a ± 21.5 | 539.4 b ± 19.0 | 492.1 b ± 14.3 |
| N2O FR (g m-2d-1) | 1.4 a ± 0.3 | 1.4 a ± 0.2 | 1.5 a ± 0.3 | 0.8 b ± 0.0 | 0.5 b ± 0.0 |
| CH4 EF (g d-1 hd-1) | 40.5 b ± 1.2 | 52.7 ab ± 3.8 | 54.2 b ± 3.8 | 62.4 a ± 2.3 | 63.7 a ± 11.6 |
| CO2 EF(g d-1 hd-1) | 19487 b ± 624 | 24958 a ± 326 | 23584 a ± 326 | 20693 b ± 143 | 18541 b ± 431 |
| N2O EF (g d-1 hd-1) | 55.2 a ± 11.0 | 53.3a ± 9.3 | 58.2 a ± 9.6 | 29.6b ± 1.4 | 17.7 b ± 0.9 |
| CH4 EF (g d-1 AU-1) | 53.2 ab ± 7.9 | 57.6 a ± 6.7 | 51.2 b ± 10.2 | 52.8 ab ± 6.2 | 52.0 ab ± 14.9 |
| CO2 EF(kg d-1 AU-1) | 25.5 a ± 2.6 | 26.9 a ± 2.0 | 22.2 b ± 2.9 | 17.5 c ± 1.8 | 15.1 c ± 0.8 |
| N2O EF(g d-1 AU-1) | 67.0 a ± 29.0 | 57.7 a ± 18.5 | 55.8 a ± 27.7 | 24.9 b ± 8.1 | 14.5 c ± 2.0 |
