Growing Pumpkin in Samburu

Soil suitability analysis based on Samburu's nutrient profile

Samburu County is a challenging environment for Pumpkin (soil-match score 28/100) and will need significant amendment before planting. At an average pH of 8.28 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 0.67 g/kg, P 42.1 mg/kg, K 387 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. Samburu receives approximately 350 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 Samburu's 28/100 suitability a realistic target here is closer to 3,500 kg/acre (~KES 105,000/acre) unless the constraints above are addressed.