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Physicochemical property of soils used for the tests in 2018 and 2019.
| Year | Organic matter (g/kg) | Total nitrogen (g/kg) | Total phosphorus (g/kg) | Total potassium (g/kg) | Available phosphorus (mg/kg) | |
|---|---|---|---|---|---|---|
| 2018 | 39.3 | 2.6 | 1.8 | 19.2 | 46.8 | 165.5 |
| 2019 | 42.1 | 2.7 | 1.9 | 21.1 | 47.9 | 172.7 |
