Growing Bambara Nuts in Vihiga

Soil suitability analysis based on Vihiga's nutrient profile

Vihiga County is a challenging environment for Bambara Nuts (soil-match score 41/100) and will need significant amendment before planting. Local soils average pH 5.62 — slightly acidic to near-neutral and inside the 5–6.5 band Bambara Nuts prefers, so no lime is usually required. Nitrogen (1.02 g/kg), phosphorus (14.8 mg/kg) and potassium (164 mg/kg) all meet Bambara Nuts's requirements, so a maintenance fertilizer programme is enough. Bambara Nuts prefers sandy soils, while Vihiga is largely clay loam, so drainage and organic-matter management matter more here. At current prices (about KES 150/kg) and a typical 300 kg/acre yield, a well-managed Bambara Nuts crop here can gross roughly KES 45,000 per acre.