| Parameter | Recommended value |
| Total carbon (TC) (mg/kg) | ≥25,000 |
| Total nitrogen (TN) (mg/kg) | ≥1500 |
| Total phosphorus (TP) (mg/kg) | ≥1100 |
| Total potassium (TK) (mg/kg) | 2500 - 10,000 |
| C/N ratio | 8 - 25 |
| C/P ratio | 23 - 46 |
| N circulation activity (point) | ≥38 |
| P circulation activity (point) | 30 - 70 |