| Treatment No. | Arrangement of experiments | Symbol/Designation |
| 1 | Control soil | C |
| 2 | Soil + Fertilizer | F |
| 3 | Soil + Farmyard manure Biochar | FM |
| 4 | Soil + Water Hyacinth Biochar | WH |
| 5 | Soil + Domestic Organic waste Biochar | DW |
| 6 | Soil + Farmyard manure Biochar + Fertilizer | FM + F |
| 7 | Soil + Water Hyacinth Biochar + Fertilizer | WH + F |
| 8 | Soil + Domestic Organic waste Biochar + Fertilizer | DW + F |