Sunflower

COASTAL PLAINS: Mainly undulating rolling plains of slope range 0-10%. In a few areas there are Strongly dissected uplands and rolling to steep hills, slope range of 10-45% disected. Major soils are well drained, moderately deep to deep, red, yellowish red or orange sands and loamy sands with sandy loams are in the subsoil with poor structure, very low natural fertility. In most cases the soils are moderately well to imperfectely drained, shallow to deep usually calcareous, black, dark grey or brown cracking clays often overlying paler subsoil with ephemeral structure and moderately high natural fertility. However there are few areas with special features: flat, low atitude riverine flood plains and deltas with spatially and temporally varying flooding regime and sedmentation patteins. There covered by young alluvial soils with variaable drainage and flooding conditions. Other special features are those undulating ad rooling plains developed neogenes and quaternary limestone, sandstone, marls, sands and clays. Altitude: 0-500 m.a.s.l ; rainfall (mm/year) 800-1600. Temperatures: 19-30 C.

HIGH PLAINS AND PLATEAUX: Mainly flat and undulating to rolling plains and plateaux at high altitude, developed on granites and gneisses. In other areas there are strongly dissected hills,mountaineous topograph, volicanic land forms at high altitudes. Mojor soils are well drained deep brown, yellowish, sand loam, sand clays to clay with moderately to strong structure. The soils have moderately to high natural fetility. Altitude: 500-2400 masl. Rainfall (mm/year): 600-2400. Temperature: 19-25 C.