Table 1 The chemical properties of soil in the experimental site of 0-20 cm.
Soil chemical properties index | Value | |
|---|---|---|
Year 2019 | Year 2020 | |
Organic matter(g·kg−1) | 18.21 | 17.56 |
Total nitrogen(g·kg−1) | 0.71 | 0.68 |
Total potassium(g·kg−1) | 16.31 | 16.54 |
Total phosphorus(g·kg−1) | 0.46 | 0.50 |
Alkali hydrolyzed nitrogen(mg·kg−1) | 111.07 | 110.89 |
Available potassium(mg·kg−1) | 153.01 | 158.23 |
Available phosphorus(mg·kg−1) | 9.23 | 9.54 |
pH value | 7.4 | 7.6 |
EC (µs/cm) | 198 | 247 |
