Table 1 The physicochemical property of composite topsoil samples (0–20 cm).
Year | Organic matter (g kg−1) | Total N content (g kg−1) | Rapidly available N (mg kg−1) | Rapidly available P (mg kg−1) | Rapidly available K (mg kg−1) | Value of pH |
|---|---|---|---|---|---|---|
2018 | 23.12 | 0.91 | 67.52 | 23.21 | 146.8 | 7.23 |
2019 | 24.37 | 0.89 | 66.74 | 24.36 | 147.6 | 7.42 |
