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Soil characteristics before sowing in 2022 and 2023.
| Year | Organic Matter | Total Soil Nitrogen | Alkali Hydrolyzed Nitrogen | Available Phosphorus | Available Potassium | pH |
|---|---|---|---|---|---|---|
| g·kg−1 | g·kg−1 | mg·kg−1 | mg·kg−1 | mg·kg−1 | ||
| 2022 | 14.20 | 1.04 | 80.44 | 12.70 | 181.86 | 7.6 |
| 2023 | 16.80 | 1.12 | 104.57 | 15.50 | 185.84 | 7.9 |
