Growing Sunflower in Trans Nzoia

Soil suitability analysis based on Trans Nzoia's nutrient profile

Trans Nzoia County is a solid choice for Sunflower, with a soil-match score of 62/100. At an average pH of 5.93 the soil is slightly acidic to near-neutral, below Sunflower's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.68 g/kg), phosphorus (27.3 mg/kg) and potassium (213 mg/kg) all meet Sunflower's requirements, so a maintenance fertilizer programme is enough. Sunflower prefers sandy soils, while Trans Nzoia is largely clay loam, so drainage and organic-matter management matter more here. Sunflower's full potential is about 750 kg/acre (~KES 36,000/acre at KES 48/kg), but at Trans Nzoia's 62/100 suitability a realistic target here is closer to 581 kg/acre (~KES 27,888/acre) unless the constraints above are addressed.