Growing Chia in Siaya

Soil suitability analysis based on Siaya's nutrient profile

Chia can be grown in Siaya County, but the soil scores 48/100 and needs targeted management to reach full potential. At an average pH of 5.33 the soil is moderately acidic, below Chia's preferred 6–8 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.2 g/kg), phosphorus (12.1 mg/kg) and potassium (134 mg/kg) all meet Chia's requirements, so a maintenance fertilizer programme is enough. Chia prefers sandy loam soils, while Siaya is largely clay loam, so drainage and organic-matter management matter more here. Chia's full potential is about 400 kg/acre (~KES 60,000/acre at KES 150/kg), but at Siaya's 48/100 suitability a realistic target here is closer to 240 kg/acre (~KES 36,000/acre) unless the constraints above are addressed.