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Table 2.
Experimental trials
| Factor | Unit | Low | Center | High |
|---|---|---|---|---|
| Sulfur dosage | g L−1 | 20 | 27 | 35 |
| PO43− | mg L−1 | 25 | 35 | 45 |
| Inoculum | (v/v) % | 3 | 5 | 10 |