| Treatment | Total N | ABD-TPA extractable P |
| (mg∙Kg−1) | ||
| Control | 438.3 e* | 0.27 c* |
| N and K’ Fertilizer | 729.2 de | 0.400 c |
| Composts of RP fed dungs (C-I) | 1400.0 ab | 0.83 bc |
| Composts of simple dungs (C-II) | 737.5 de | 1.06 bc |
| Compost of organic wastes (C-III) | 1458.3 a | 0.85 bc |
| Compost of city garbages (C-IV) | 908.3 cd | 1.06 bc |
| C-I + Half dose’ of recommended ‘SSP’ | 1400.0 ab | 2.44 a |
| C-II + Half dose’ of recommended ‘SSP’ | 1347.5 ab | 1.84 ab |
| C-III + Half dose’ of recommended ‘SSP’ | 1020.8 bcd | 1.23 bc |
| C-IV + Half dose of recommended SSP | 1201.7 b | 1.29 bc |
| Full dose of recommended SSP | 1187.8 abc | 1.57 b |
| LSD(P ≤ 0.05) | 402.87 | 1.0725 |