Treatments | PH (H2O) | Total C% | Total N% | Total P% | Exchangeable basic―K+ | Exchangeable basic―Ca2+ | Exchangeable basic―mg2+ | Exchangeable basic―Na+ | Cu | Zn |
Soil | 5.30 | 0.05 | 0.04 | 0.99 | 0.03 | 0.98 | 1.13 | - | 1.78 | 0.12 |
Biochar | 9.51 | 8.61 | 0.33 | 7.96 | 0.86 | 3.95 | 2.06 | 0.68 | 4.68 | 1.23 |
Compost | - | 9.35 | 1.2 | 1.08 | 1.78 | 1.98 | 0.07 | - | - | - |