| 项目Item | K1 | K2 | K3 | CK | ||||
| 2019 | 2020 | 2019 | 2020 | 2019 | 2020 | 2019 | 2020 | |
| 水解性氮mg/kg | 145.85 | 287.0 | 133.1 | 235.0 | 116.7 | 221.0 | 142.75 | 368.0 |
| 有效磷mg/kg | 128.25 | 178.3 | 128.55 | 167.5 | 155.85 | 135.6 | 232.4 | 295.8 |
| 速效钾mg/kg | 198.5 | 400.0 | 335.15 | 362.0 | 181.8 | 467.0 | 434.75 | 176.0 |
| 有效锌mg/kg | 0.93 | 4.93 | 0.62 | 2.76 | 0.85 | 2.45 | 0.94 | 4.75 |
| 有效铁mg/kg | 61.78 | 246.0 | 82.4 | 113.0 | 62 | 127.0 | 95.5 | 88.9 |
| 有效硼mg/kg | 0.18 | 1.49 | 0.06 | 1.30 | 0.045 | 1.19 | 0.07 | 0.95 |
| 交换性镁cmol/kg | 2.27 | 5.60 | 2.47 | 5.4 | 2.14 | 4.7 | 2.01 | 4.3 |
| 交换性钙cmol/kg | 6.62 | 24.10 | 6.53 | 26.3 | 7.18 | 33.4 | 5.71 | 46.0 |
| 有机质g/kg | 31.6 | 61.6 | 22.35 | 52.1 | 19.7 | 44.2 | 28.1 | 75.0 |