Parameters | Experimental soil | Appreciation of soil elements [35] | BSFF | Standard NFU44 051 for organic fertilizers |
Texture (%) | ||||
Sand | 64.65 | - | - | - |
Silt | 18.85 | - | - | - |
Clay | 16.5 | - | - | - |
Organic elements (%) | ||||
Organic matter (OM) | 8.62 | >6, Very high | 90 | ≥20 |
Organic carbon (OC) | 5 | - | 45 | - |
Nitrate (N) | 0.28 | 0.225 - 0.3, High | 0.52 | <2 |
C:N ratio | 18 | 14 - 20, Poor quality of organic maters | 85 | >8 |
Mineral elements (meq/100 g) | ||||
Calcium (Ca) | 2.65 | <7, Very low | 0.39 | - |
Magnesium (Mg) | 1.13 | 0.5 - 1.5, Low | 0.15 | - |
Potassium (K) | 1.06 | 0.6 - 1.2, High | 1.8 | <30 |
Sodium (Na) | 0.015 | <0.1, Very low | 0.055 | - |
Phosphorus (P) | 2.29 | <7, Very low | 1.08 | <30 |
Cation exchange capacity (meq/100 g) | 18.2 | 10 - 25, Medium | - | - |
pH | 6.3 | 6 - 7, Slightly acidic | 7.84 | = 7 |