| Cropping systems | Nitrogen | Phosphorus | Potassium | Calcium | Magnesium | |||||
| 2015 | 2016 | 2015 | 2016 | 2015 | 2016 | 2015 | 2016 | 2015 | 2016 | |
| Mucuna pruriens | 102.4a | 63.2a | 18.6ab | 13.2ab | 115.0ab | 68.2a | 22.2a | 13.0bc | 9.7ab | 9.7ab |
| Canavalia | 57.8b | 45.6b | 14.7bc | 11.9ab | 86.1bc | 50.0bc | 14.4bc | 11.0c | 8.1bc | 8.1bc |
| Control (no fertilizers) | 40.4c | 29.0c | 6.5c | 4.8b | 40.7c | 37.0c | 6.4c | 5.6c | 5.2c | 6.0c |