Growing Bambara Nuts in Kisii
Soil suitability analysis based on Kisii's nutrient profile
Possible but challenging — Kisii is only marginally suited to Bambara Nuts. Kisii's soil (pH 5.21, strongly acidic) gives Bambara Nuts a suitability score of 44/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Kisii County is a challenging environment for Bambara Nuts (soil-match score 44/100) and will need significant amendment before planting. Local soils average pH 5.21 — moderately acidic and inside the 5–6.5 band Bambara Nuts prefers, so no lime is usually required. Nitrogen (1.09 g/kg), phosphorus (13.1 mg/kg) and potassium (151 mg/kg) all meet Bambara Nuts's requirements, so a maintenance fertilizer programme is enough. Bambara Nuts prefers sandy soils, while Kisii is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Bambara Nuts is the #76 soil match of the 106 crops we assess for Kisii County. Bambara Nuts's full potential is about 400 kg/acre (~KES 60,000/acre at KES 150/kg), but at Kisii's 44/100 suitability a realistic target here is closer to 220 kg/acre (~KES 33,000/acre) unless the constraints above are addressed.
Better matched to Kisii's soil: Tea, Macadamia, and Pineapple — each scores higher on the same soil.
Soil & climate match
| Factor | Kisii soil | Bambara Nuts needs | Status |
|---|---|---|---|
| pH | 5.21 | 5–6.5 | OK |
| Nitrogen | 1.09 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 13.1 mg/kg | min 6 mg/kg | OK |
| Potassium | 151 mg/kg | min 100 mg/kg | OK |
| Rainfall | 1,500 mm | 500–800 mm | High |
| Altitude | 1,700 m | 0–1,600 m | High |
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag