Following falling cotton yields in North Cameroon (17kg/ha/an) and the degradation of natural resources, the cotton development corporation (SODECOTON) has put in place many projects since 1994 with the assistance of French Agency for Development (AFD) and French Ministry of Foreign Affairs (MAE). The principal techniques used up till date consist essentially in slowing down soil run-off thanks to anti-erosion land management techniques or soil fertility improvement using manure or fertilising tree crops.