Growing Watermelon in Samburu

Soil suitability analysis based on Samburu's nutrient profile

Watermelon can be grown in Samburu County, but the soil scores 59/100 and needs targeted management to reach full potential. At an average pH of 8.28 the soil sits above Watermelon's preferred 6–7.5 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/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Watermelon, which favours sandy. Watermelon's full potential is about 15,000 kg/acre (~KES 150,000/acre at KES 10/kg), but at Samburu's 59/100 suitability a realistic target here is closer to 11,063 kg/acre (~KES 110,630/acre) unless the constraints above are addressed.