Growing Yams in Mombasa

Soil suitability analysis based on Mombasa's nutrient profile

Yams can be grown in Mombasa County, but the soil scores 59/100 and needs targeted management to reach full potential. Local soils average pH 6.24 — slightly acidic to near-neutral and inside the 5.5–6.5 band Yams prefers, so no lime is usually required. The main gap is phosphorus and potassium — measured at N 0.95 g/kg, P 8.4 mg/kg, K 136 mg/kg against this crop's medium/medium/high demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly sandy soils suit Yams, which favours sandy loam. At current prices (about KES 80/kg) and a typical 6,000 kg/acre yield, a well-managed Yams crop here can gross roughly KES 480,000 per acre.