Growing Pumpkin in Marsabit

Soil suitability analysis based on Marsabit's nutrient profile

Marsabit County is a challenging environment for Pumpkin (soil-match score 21/100) and will need significant amendment before planting. At an average pH of 8.22 the soil sits above Pumpkin's preferred 5.8–7.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.52 g/kg, P 37.3 mg/kg, K 420 mg/kg against this crop's medium/medium/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Pumpkin, which favours sandy loam. Marsabit receives approximately 300 mm/year — well below Pumpkin's minimum of 500 mm — so supplemental irrigation would be essential for this crop. Pumpkin's full potential is about 10,000 kg/acre (~KES 300,000/acre at KES 30/kg), but at Marsabit's 21/100 suitability a realistic target here is closer to 2,625 kg/acre (~KES 78,750/acre) unless the constraints above are addressed.