Elements | Actual average (Senegal) | Freiberger et al., 1998 (Niger) | [1] (Niger) | [14] (Uganda) |
| (mg/100 g) | (mg/kg) | ||
P | 213 - 322 | 2.3 |
| 2.2 |
K
| 1956 - 2417 | 19.8 | 30421 | - |
Ca | 2385 - 3876 | 21.4 | 17106 | 7.1 |
Mg | 578 - 800 | 5.66 | 4696 | 1.0 |
Na | 12.31 - 21.4 | 1.1 | 934 | Traces |
Cu | 0.91 - 1.35 | 9.5 | 13.2 | - |
Fe | 68.4 - 119.95 | 211 | 437 | 15.4 |
Mn | 6.77 - 8.48 | 81.9 | 78.5 | - |
Zn | 4.87 - 2.92 | - | 52.7 | - |