| Treatment | Rate of application |
| Full rate of OFA | 250 ml·ha−1 OFA |
| Full rate of NPK | 90:60:60 NPK |
| ½ rate of OFA + ½ NPK | 125 ml·ha−1 OFA+ 45:30:30 NPK |
| Full rate of OFA + ½ NPK | 250 ml·ha−1 OFA+ 45:30:30 NPK |
| Control (No fertilizer/No OFA) | Not applicable |