Year | Year 1 | Year 2 | Y mean1 | ||||||
---|---|---|---|---|---|---|---|---|---|
Tillage operations | CT | NT | T mean | CT | NT | T mean | CT | NT | T × Y mean2 |
Nitrogen fertilizations | Cumulative N2O (kg ha−1 year−1) | ||||||||
WOU | 4.30b (0.08) | 5.73a (0.26) | 5.02B (0.30) | 4.99a (0.22) | 3.50b (0.19) | 4.24B (0.31) | 4.65a (0.17) | 4.61a (0.45) | 4.63B (0.23) |
WU | 7.44a (0.54) | 6.79a (0.31) | 7.12A (0.31) | 6.85a (0.27) | 4.53b (0.29) | 5.69A (0.47) | 7.14a (0.30) | 5.66b (0.47) | 6.40A (0.33) |
N mean3 | 5.87a (0.64) | 6.26a (0.27) | 5.92a (0.39) | 4.02b (0.25) | 5.90a (0.36) | 5.14b (0.34) | |||
T × N mean4 | 6.07a (0.34) | 4.97b (0.33) |