Growing Napier Grass in Kajiado

Soil suitability analysis based on Kajiado's nutrient profile

Kajiado County is a challenging environment for Napier Grass (soil-match score 36/100) and will need significant amendment before planting. Local soils average pH 6.55 — neutral and inside the 5–8 band Napier Grass prefers, so no lime is usually required. Nitrogen (0.97 g/kg), phosphorus (20.6 mg/kg) and potassium (257 mg/kg) all meet Napier Grass's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Napier Grass, which favours loam. Kajiado receives approximately 500 mm/year — well below Napier Grass's minimum of 800 mm — so supplemental irrigation would be essential for this crop. 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.