Growing Pawpaw in Uasin Gishu

Soil suitability analysis based on Uasin Gishu's nutrient profile

Uasin Gishu County is a challenging environment for Pawpaw (soil-match score 30/100) and will need significant amendment before planting. Local soils average pH 6.39 — slightly acidic to near-neutral and inside the 6–7.5 band Pawpaw prefers, so no lime is usually required. Nitrogen (1.56 g/kg), phosphorus (25.3 mg/kg) and potassium (227 mg/kg) all meet Pawpaw's requirements, so a maintenance fertilizer programme is enough. Pawpaw prefers sandy loam soils, while Uasin Gishu is largely clay loam, so drainage and organic-matter management matter more here. At 2100 m, the county sits above Pawpaw's preferred altitude ceiling of 1200 m, where frost risk and cold nights reduce the crop's productivity. Pawpaw's full potential is about 12,000 kg/acre (~KES 336,000/acre at KES 28/kg), but at Uasin Gishu's 30/100 suitability a realistic target here is closer to 4,500 kg/acre (~KES 126,000/acre) unless the constraints above are addressed.