| Management systems | Before the experiment implementation | Crop cycle 1 | Crop cycle 2 | Crop cycle 3 | Crop cycle 5 |
| 0 - 10 cm (g・kg−1) | |||||
| NT | 28.82 aC | 39.03 aB | 41.52 aAB | 44.64 aA | 44.92 abA |
| RT | 28.82 aD | 37.61 aC | 41.71 aBC | 43.67 aB | 48.34 aA |
| CT | 28.82 aB | 37.61 aA | 40.52 aA | 43.26 aA | 39.48 bA |
| 10 - 30 cm (g・kg−1) | |||||
| NT | 20.75 aC | 32.54 aB | 30.50 aB | 32.17 aAB | 36.23 aA |
| RT | 20.75 aC | 29.99 aB | 29.06 aB | 31.57 aB | 36.55 aA |
| CT | 20.75 aC | 29.23 aB | 31.08 aB | 33.40 aAB | 35.60 aA |