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Soil characteristics of the experimental field.
| Parameter | Result | Interpretation 1 |
|---|---|---|
| Soil reaction (pH) | 7.50 | slightly alkaline |
| Humus % | 3.30 | middle range |
| Total nitrogen (Nt %) | 0.155 | middle range |
| Phosphorus (P ppm) | 22.0 | middle range for field crops |
| Potassium (K ppm) | 185 | good for field crops |
1 Compared to thresholds [34].
