| Treatments | Total soil N | AB-DTP A extractable P |
| ______Contents (mg∙kg−1)______ | ||
| Control (No fertilizers) | 940d* | 3.10f* |
| N & K fertilizers | 1275c | 3.859e |
| N, P & K fertilizers | 1230c | 4.193d |
| Compost | 1101cd | 4.580c |
| N, P & K + S @ 20 kg∙ha−1 | 1111cd | 5.168b |
| Compost + S @ 10 kg∙ha−1 | 1477b | 4.925b |
| Compost + S @ 20 kg∙ha−1 | 1613ab | 5.567a |
| Compost + S @ 30 kg∙ha−1 | 1756a | 5.704a |
| LSD P ≤ 0.05 | 194.56 | 0.321 |