Year | Year 1 | Year 2 | Y mean1 | ||||||
---|---|---|---|---|---|---|---|---|---|
Tillage operations | CT | NT | T mean | CT | NT | T mean | CT | NT | T × Y mean2 |
Nitrogen fertilizations | Nitrate (\({\text{NO}}_{3}^{ - }\)) (mg kg−1) | ||||||||
WOU | 22.20a (0.85) | 4.92b (1.45) | 13.56A (3.36) | 2.67a (0.27) | 2.58a (0.25) | 2.63B (0.17) | 12.44a (3.71) | 3.75b (0.81) | 8.09B (0.50) |
WU | 23.40a (0.01) | 4.20b (0.07) | 13.80A (3.63) | 5.30a (1.17) | 6.29a (0.66) | 5.79A (0.65) | 14.35a (3.46) | 5.25b (1.41) | 9.80A (0.40) |
N mean3 | 22.80a (0.45) | 4.56b (0.69) | 3.99a (0.75) | 4.43a (0.77) | 13.39A (2.21) | 4.50B (0.40) | |||
T × N mean4 | 13.68a (2.39) | 4.21b (0.52) |