Growing Napier Grass in Kiambu

Soil suitability analysis based on Kiambu's nutrient profile

Kiambu County is a solid choice for Napier Grass, with a soil-match score of 73/100. Local soils average pH 5.28 — moderately acidic and inside the 5–8 band Napier Grass prefers, so no lime is usually required. Nitrogen (1.01 g/kg), phosphorus (13.7 mg/kg) and potassium (169 mg/kg) all meet Napier Grass's requirements, so a maintenance fertilizer programme is enough. Napier Grass prefers loam soils, while Kiambu is largely clay, so drainage and organic-matter management matter more here. At current prices (about KES 5/kg) and a typical 15,000 kg/acre yield, a well-managed Napier Grass crop here can gross roughly KES 75,000 per acre.