Growing Chia in Nyandarua

Soil suitability analysis based on Nyandarua's nutrient profile

Chia can be grown in Nyandarua County, but the soil scores 49/100 and needs targeted management to reach full potential. At an average pH of 5.38 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 (1.28 g/kg), phosphorus (14 mg/kg) and potassium (166 mg/kg) all meet Chia's requirements, so a maintenance fertilizer programme is enough. Chia prefers sandy loam soils, while Nyandarua is largely clay, 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 Nyandarua's 49/100 suitability a realistic target here is closer to 245 kg/acre (~KES 36,750/acre) unless the constraints above are addressed.