Table 1 Chemical properties of the used soil
Year | pH | HCO3− + CO32− (mg kg− 1) | Cl− (mg kg− 1) | SO42− (mg kg− 1) | Ca2+ (mg kg− 1) | Mg2+ (mg kg− 1) | Na+ (mg kg− 1) | K+ (mg kg− 1) | N (mg kg− 1) | P (mg kg− 1) |
|---|---|---|---|---|---|---|---|---|---|---|
2016 | 7.2 | 204.3 | 297.6 | 463.8 | 87.4 | 37.6 | 4.1 | 28.9 | 17.3 | 3.9 |
2017 | 7.1 | 201.7 | 302.5 | 446.2 | 90.3 | 40.9 | 4.0 | 31.4 | 16.1 | 3.8 |