Table 1 Soil chemical properties of CK and continuous cropping soils.
Sample | pH | AHN | AP | AK | OM | TN | TP | TK |
---|---|---|---|---|---|---|---|---|
CK | 8.01 ± 0.02a | 73.86 ± 1.43a | 48.5 ± 1.09a | 165 ± 3.61a | 56.73 ± 1a | 2.63 ± 0.07a | 0.92 ± 0.01a | 19.82 ± 0.14ab |
Y3 | 7.64 ± 0.06b | 97.18 ± 1.43b | 122.83 ± 1.89d | 338.67 ± 4.62b | 63.94 ± 0.55b | 3.19 ± 0.01b | 1.22 ± 0.01c | 20.08 ± 0.05a |
Y5 | 7.39 ± 0.02c | 91.24 ± 1.37c | 106.42 ± 2.08b | 369.33 ± 6.11c | 59.5 ± 0.79c | 3.57 ± 0.11c | 1.18 ± 0.01b | 19.88 ± 0.31ab |
Y7 | 7.77 ± 0.05d | 103.13 ± 2.41d | 105.83 ± 1.38b | 412 ± 0d | 76.29 ± 0.42d | 3.77 ± 0.03d | 1.19 ± 0.03bc | 19.89 ± 0.2ab |
Y10 | 7.53 ± 0.02e | 44.52 ± 1.05e | 112.92 ± 2.02c | 578.67 ± 8.33e | 90.46 ± 1.75e | 4.8 ± 0.11e | 1.22 ± 0.03bc | 19.68 ± 0.05b |