Growing Millet in Nyandarua

Soil suitability analysis based on Nyandarua's nutrient profile

Nyandarua County is a challenging environment for Millet (soil-match score 33/100) and will need significant amendment before planting. Local soils average pH 5.38 — moderately acidic and inside the 5–8 band Millet prefers, so no lime is usually required. Nitrogen (1.28 g/kg), phosphorus (14 mg/kg) and potassium (166 mg/kg) all meet Millet's requirements, so a maintenance fertilizer programme is enough. Millet prefers sandy soils, while Nyandarua is largely clay, so drainage and organic-matter management matter more here. At 2300 m, the county sits above Millet's preferred altitude ceiling of 1800 m, where frost risk and cold nights reduce the crop's productivity. Millet's full potential is about 700 kg/acre (~KES 40,600/acre at KES 58/kg), but at Nyandarua's 33/100 suitability a realistic target here is closer to 289 kg/acre (~KES 16,762/acre) unless the constraints above are addressed.