Growing Watermelon in Turkana

Soil suitability analysis based on Turkana's nutrient profile

Turkana County is a solid choice for Watermelon, with a soil-match score of 60/100. At an average pH of 7.95 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 0.41 g/kg, P 38.5 mg/kg, K 417 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 Turkana's 60/100 suitability a realistic target here is closer to 11,250 kg/acre (~KES 112,500/acre) unless the constraints above are addressed.