Farmer criteria | Scientific norms | |||
Name of the soils (Hausa) | Texture | Color | Classification | Texture |
Jigawa or Rérey | Sandy | Red, white or black | Not leached out ferrigineous soils | Sandy |
Guéza ou Jigawa Hako | Superficially sandy, but compacted | Red, white or black | Leached out ferrigineous soils | Silty-clayish |
Hako | Hard, very compacted | Red, brown | Eutrophic brown soils on clayish material | Silty-sandy |
Laka | Less compacted than the hako | Red, brown | Hydromorphic soils to pseudo-clay | Clayish-silty-sandy |