Table 10 Analysis of greenhouse gas emissions based on treatment

20-Jun-13

CH₄ concentration (ppm)

2.2 ab^* ± 0.0

2.2 a ± 0.2

2.3 b ± 0.2

2.1 a ± 0.0

CO₂ concentration (ppm)

378.0 a ± 24.0

378.3 a ± 17.9

390.0 a ± 40.4

374.3 a ± 15.8

N₂O concentration (ppm)

0.9 a ± 0.1

1.2 a ± 0.5

0.8 a ± 0.4

1.4 a ± 0.4

CH₄ FR (g m^-2 d^-1)

1.1 a ± 0.0

1.1 a ± 0.1

1.1 a ± 0.1

1.0 a ± 0.0

CO₂ FR (g m^-2 d^-1)

504.8 a ± 32.0

505.2 a ± 23.9

520.8 a ± 54.0

499.8 a ± 21.1

N₂O FR (g m^-2 d^-1)

1.2 a ± 0.2

1.6 a ± 0.6

1.1 a ± 0.5

1.8 a ± 0.6

CH₄ EF (g AU^-1 d^-1)

54.3 a ± 8.5

53.4 a ± 9.4

55.7 a ± 6.3

51.4 a ± 6.0

CO₂ EF (kg AU^-1 d^-1)

25.8 a ± 2.8

24.7 a ± 2.9

27.1 a ± 2.2

25.9 a ± 1.7

N₂O EF (g AU^-1 d^-1)

62.2 a ± 8 .9

78.2 a ± 26.5

54.5 a ± 20.4

93.8 a ± 35.4

30-Jul-13

CH₄ concentration (ppm)

2.8 ab ± 0.3

2.8 b ± 0.1

3.1 a ± 0.2

2.6 b ± 0.1

CO₂ concentration (ppm)

467.9 b ± 70.3

485.4 b ± 67.0

518.0 a ± 75.0

473.5 b ± 58.8

N₂O concentration (ppm)

1.0 a ± 0.4

0.8 a ± 0.2

1.3 a ± 0.1

1.0 a ± 0.3

CH₄ FR (g m^-2 d^-1)

1.4 ab ± 0.2

1.3 b ± 0.0

1.5 a ± 0.1

1.3 b ± 0.1

CO₂ FR (g m^-2 d^-1)

624.7 b ± 93.9

648.2 b ± 89.5

691.7 a ± 100.2

632.2 b ± 78.5

N₂O FR (g m^-2 d^-1)

1.4 a ± 0.5

1.1 a ± 0.3

1.7 a ± 0.1

1.4 a ± 0.4

CH₄ EF (g AU^-1 d^-1)

58.4 ab ± 5.6

54.8 a ± 6.3

64.3 b ± 4.2

52.8 a ± 3.6

CO₂ EF (g AU^-1 d^-1)

26.2 a ± 1.6

26.1 a ± 2.9

29.6 b ± 2.2

25.9 a ± 1.7

N₂O EF (kg AU^-1 d^-1)

58.6 ab ± 23.5

42.5 a ± 7.0

74.1 b ± 9.5

55.5 ab ± 13.2

20-Aug-13

CH₄ concentration (ppm)

3.2 a ±1.0

2.8 a ± 0.4

2.7 a ± 0.5

2.8 a ± 0.7

CO₂ concentration (ppm)

431.5 a ± 48.3

471.1 a ± 93.1

487.4 a ± 131.1

447.0 a ± 64.2

N₂O concentration (ppm)

0.9 a ± 0.4

1.4 a ± 0.6

0.9 a ± 0.4

1.2 a ± 0.3

CH₄ FR (g m^-2 d^-1)

1.6 a ± 0.5

1.4 a ± 0.2

1.3 a ± 0.2

1.4 a ± 0.4

CO₂ FR (g m^-2 d^-1)

576.2 a ± 64.4

629.0 a ± 124.3

650.9 a ± 175.1

596.9 a ± 85.8

N₂O FR (g m^-2 d^-1)

1.3 a ± 0.6

1.9 a ± 0.8

1.2 a ± 0.4

1.7 a ± 0.8

CH₄ EF (g AU^-1 d^-1)

57.9 a ± 15.3

49.0 a ± 2.6

49.7 a ± 6.0

48.2 a ± 9.0

CO₂ EF (kg AU^-1 d^-1)

21.2 a ± 1.6

22.1 a ± 1.6

24.3 a ± 4.3

21.1 a ± 1.8

N₂O EF (g AU^-1 d^-1)

48.5 a ± 25.6

67.3 a ± 31.6

48.5 a ± 18.7

59.1 a ± 28.6

18-Sep-13

CH₄ concentration (ppm)

3.3 a ±0.3

3.4 a ± 0.7

3.1 a ± 0.5

3.6 a ± 0.7

CO₂ concentration (ppm)

389.3 a ± 28.1

381.1 a ± 60.6

423.3 a ± 70.3

422.2 a ± 44.7

N₂O concentration (ppm)

0.6 ± 28.1

0.6 ± 60.6

0.6 ± 70.3

0.6 ± 44.7

CH₄ FR (g m^-2 d^-1)

1.6 a ± 0.1

1.6 a ± 0.4

1.5 a ± 0.3

1.7 a ± 0.4

CO₂ FR (g m^-2 d^-1)

519.9 a ± 37.5

508.9 a ± 80.9

565.2 a ± 93.9

563.8 a ± 59.7

N₂O FR (g m^-2 d^-1)

0.8 a ± 0.3

0.7 a ± 0.1

0.7 a ± 0.3

0.8 a ± 0.4

CH₄ EF (g AU^-1 d^-1)

54.2 a ± 6.0

51.6 a ± 5.7

50.8 a ± 4.0

54.7 a ± 7.7

CO₂ EF (kg AU^-1 d^-1)

17.3 ab ± 0.6

16.1 b ± 1.1

19.1 a ± 2.1

17.9 ab ± 1.6

N₂O EF (g AU^-1 d^-1)

26.9 a ± 7.8

24.3 a ± 4.5

24.4 a ± 9.2

23.9 a ± 9.4

9-Oct-13

CH₄ concentration (ppm)

4.3 a ± 1.4

3.9 a ± 1.1

2.5 a ± 0.2

3.4 a ± 0.2

CO₂ concentration (ppm)

367.2 a ± 35.1

381.6 a ± 23.9

345.7 a ± 11.3

379.8 ± 2.9

N₂O concentration (ppm)

0.4 a ± 0.0

0.3 a ± 0.1

0.4 a ± 0.1

0.4 a ± 0.0

CH₄ FR (g m^-2 d^-1)

2.1 a ± 0.7

1.9 a ± 0.5

1.2 a ± 0.1

1.6 a ± 0.1

CO₂ FR (g m^-2 d^-1)

490.3 a ± 46.9

509.5 a ± 31.9

461.6 a ± 15.0

507.2 a ± 3.9

N₂O FR (g m^-2 d^-1)

0.5 a ±0.0

0.5 a ± 0.1

0.5 a ± 0.1

0.5 a ± 0.0

CH₄ EF (g AU^-1 d^-1)

62.2 a ± 16.3

59.1 a ± 15.5

38.8 a ± 1.5

47.8 a ± 5.2

CO₂ EF (kg AU^-1 d^-1)

14.9 a ± 0.3

15.8 a ± 1.2

15.0 a ± 0.0

14.7 a ± 0.7

N₂O EF (g AU^-1 d^-1)

14.6 a ± 0.7

14.0 a ± 2.1

15.7 a ± 2.8

13.6 a ± .09