State | Site | Incubation temperature | Q10 | ||||||
10˚C | 20˚C | 30˚C | |||||||
Cumulative N2O-N flux (mg∙kg−1 soil) | |||||||||
Maine | Frenchville | 12.9Aa* (10.6) | 13.2Aa (2.94) | 19.1Aa (2.38) | 1.40C | (0.39) | |||
Tennessee | Jackson | 0.16Bc (0.14) | 0.89Cb (0.10) | 1.39Ca (0.49) | 10.1AB | (14.9) | |||
South Carolina | Blackville | 0.07Bb (0.05) | 4.87BCa (2.45) | 5.39Ba (1.88) | 11.4A | (5.66) | |||
Minnesota | Downer | 2.39Ba (2.22) | 5.55Ba (2.75) | 4.63Ba (2.70) | 2.14BC | (1.65) | |||
North Dakota | Bismarck | 20.9Aa (2.60) | 1.11BCb (0.37) | 1.25Cb (0.34) | 0.23C | (0.05) | |||
North Dakota | Dickinson | 0.36Bb (0.08) | 0.77Cab (0.30) | 0.99Ca (0.37) | 1.65C | (0.23) | |||
Nebraska | North Bend | 0.58Bb (0.10) | 0.62Cb (0.28) | 1.50Ca (0.39) | 1.63C | (0.19) | |||
Oregon | Pendleton | 27.8Aa (29.7) | 15.7Aa (7.65) | 3.04BCa (1.95) | 0.53C | (0.42) | |||
LSD (0.05) |
| 16.3 | 4.64 | 2.35 | 8.25 |
| |||
|
| Cumulative NH3-N flux (µg∙g−1 soil) |
|
| |||||
Maine | Frenchville | 14.7Da (2.39) | 9.40Eab (5.63) | 6.62Cb (5.21) | 0.63B | (0.25) | |||
Tennessee | Jackson | 51.1Bab (24.7) | 66.8ABa (36.7) | 19.6Cb (6.12) | 0.66B | (0.23) | |||
South Carolina | Blackville | 242Aa (54.2) | 85.2Ab (17.8) | 119Ab (11.5) | 0.70B | (0.09) | |||
Minnesota | Downer | 48.1BCa (11.3) | 46.7BCa (4.25) | 41.7Ba (20.5) | 0.91AB | (0.20) | |||
North Dakota | Bismarck | 29.3BCDa (7.39) | 27.4CDEa (5.82) | 12.9Cb (4.75) | 0.66B | (0.14) | |||
North Dakota | Dickinson | 16.1CDa (3.17) | 12.7DEab (6.53) | 7.39Cb (2.72) | 0.66B | (0.07) | |||
Nebraska | North Bend | 28.6BCDa (5.51) | 33.1CDa (13.4) | 43.1Ba (12.1) | 1.24A | (0.22) | |||
Oregon | Pendleton | 25.0BCDab (8.02) | 44.0BCa (10.7) | 19.8Cb (16.3) | 0.90AB | (0.53) | |||
LSD (0.05) |
| 32.0 | 23.5 | 16.8 | 0.37 |
| |||
|
| % Nitrogen mineralized |
|
| |||||
Maine | Frenchville | 78.7BCDa (2.65) | 45.4BCb (8.35) | 79.6Ba (1.13) | 1.00A | (0.01) | |||
Tennessee | Jackson | 77.1DEa (2.24) | 28.2EFc (8.12) | 67.7Db (2.02) | 0.97CDE | (0.01) | |||
South Carolina | Blackville | 95.8Aa (0.54) | 86.9Ab (8.91) | 91.8Aab (1.23) | 0.99AB | (0.01) | |||
Minnesota | Downer | 78.7BCDa (1.94) | 44.9CDc (4.77) | 72.8Cb (2.47) | 0.98BC | (0.01) | |||
North Dakota | Bismarck | 80.7BCa (1.18) | 34.4DEc (8.53) | 67.7Db (2.11) | 0.96E | (0.01) | |||
North Dakota | Dickinson | 75.2Ea (1.02) | 23.3Fc (6.14) | 62.7Eb (2.14) | 0.96E | (0.01) | |||
Nebraska | North Bend | 78.2CDa (1.77) | 34.1DEc (3.40) | 68.2Db (1.60) | 0.97DE | (0.01) | |||
Oregon | Pendleton | 81.0Ba (2.42) | 56.1Bc (8.46) | 72.2Cb (2.53) | 0.97CD | (0.01) | |||
LSD (0.05) |
| 2.70 | 10.7 | 2.87 |
| 0.01 | |||