Growing Chilies in Murang'a

Soil suitability analysis based on Murang'a's nutrient profile

Murang'a County is a challenging environment for Chilies (soil-match score 40/100) and will need significant amendment before planting. At an average pH of 5.03 the soil is moderately acidic, below Chilies's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.2 g/kg), phosphorus (12.2 mg/kg) and potassium (168 mg/kg) all meet Chilies's requirements, so a maintenance fertilizer programme is enough. Chilies prefers sandy loam soils, while Murang'a is largely clay, so drainage and organic-matter management matter more here. At 1500 m, the county sits above Chilies's preferred altitude ceiling of 1200 m, where frost risk and cold nights reduce the crop's productivity. Chilies's full potential is about 2,500 kg/acre (~KES 412,500/acre at KES 165/kg), but at Murang'a's 40/100 suitability a realistic target here is closer to 1,250 kg/acre (~KES 206,250/acre) unless the constraints above are addressed.