Growing Parsley in Nyandarua

Soil suitability analysis based on Nyandarua's nutrient profile

Nyandarua County is a solid choice for Parsley, with a soil-match score of 69/100. At an average pH of 5.38 the soil is moderately acidic, below Parsley's preferred 6–7.5 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 Parsley's requirements, so a maintenance fertilizer programme is enough. Parsley prefers loam soils, while Nyandarua is largely clay, so drainage and organic-matter management matter more here. Parsley's full potential is about 4,000 kg/acre (~KES 400,000/acre at KES 100/kg), but at Nyandarua's 69/100 suitability a realistic target here is closer to 3,450 kg/acre (~KES 345,000/acre) unless the constraints above are addressed.