Growing Napier Grass in Kwale

Soil suitability analysis based on Kwale's nutrient profile

Kwale County is well suited to Napier Grass, scoring 90/100 on ShambaIQ's soil-match model. Local soils average pH 6.76 — neutral and inside the 5–8 band Napier Grass prefers, so no lime is usually required. The main gap is potassium — measured at N 0.93 g/kg, P 9.8 mg/kg, K 131 mg/kg against this crop's medium/low/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Napier Grass, which favours loam. 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.