Growing Quinoa in Embu

Soil suitability analysis based on Embu's nutrient profile

Embu County is a challenging environment for Quinoa (soil-match score 35/100) and will need significant amendment before planting. At an average pH of 5.1 the soil is moderately acidic, below Quinoa's preferred 6–8.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.04 g/kg), phosphorus (12.6 mg/kg) and potassium (194 mg/kg) all meet Quinoa's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Quinoa, which favours loam. Quinoa's full potential is about 700 kg/acre (~KES 105,000/acre at KES 150/kg), but at Embu's 35/100 suitability a realistic target here is closer to 306 kg/acre (~KES 45,900/acre) unless the constraints above are addressed.