Growing Pumpkin in Vihiga

Soil suitability analysis based on Vihiga's nutrient profile

Pumpkin can be grown in Vihiga County, but the soil scores 57/100 and needs targeted management to reach full potential. At an average pH of 5.62 the soil is slightly acidic to near-neutral, below Pumpkin's preferred 5.8–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is potassium — measured at N 1.02 g/kg, P 14.8 mg/kg, K 164 mg/kg against this crop's medium/medium/high demand — so the fertilizer plan below prioritises closing that deficit. Pumpkin prefers sandy loam soils, while Vihiga is largely clay loam, so drainage and organic-matter management matter more here. Pumpkin's full potential is about 10,000 kg/acre (~KES 300,000/acre at KES 30/kg), but at Vihiga's 57/100 suitability a realistic target here is closer to 7,125 kg/acre (~KES 213,750/acre) unless the constraints above are addressed.