Growing Bambara Nuts in Tana River
Soil suitability analysis based on Tana River's nutrient profile
Yes, with the right inputs — Tana River is moderately suited to Bambara Nuts. Tana River's soil (pH 6.4, slightly acidic) gives Bambara Nuts a suitability score of 55/100. Match fertilizer to Tana River's nitrogen and phosphorus levels for the best result.
Bambara Nuts can be grown in Tana River County, but the soil scores 55/100 and needs targeted management to reach full potential. Local soils average pH 6.4 — slightly acidic to near-neutral and inside the 5–6.5 band Bambara Nuts prefers, so no lime is usually required. Nitrogen (1.04 g/kg), phosphorus (8.5 mg/kg) and potassium (108 mg/kg) all meet Bambara Nuts's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy soils suit Bambara Nuts, which favours sandy. On ShambaIQ's soil-match model, Bambara Nuts is the #18 soil match of the 106 crops we assess for Tana River County. Bambara Nuts's full potential is about 400 kg/acre (~KES 60,000/acre at KES 150/kg), but at Tana River's 55/100 suitability a realistic target here is closer to 275 kg/acre (~KES 41,250/acre) unless the constraints above are addressed.
Better matched to Tana River's soil: Sorghum, Cowpeas, and Pigeon Peas — each scores higher on the same soil.
Soil & climate match
| Factor | Tana River soil | Bambara Nuts needs | Status |
|---|---|---|---|
| pH | 6.4 | 5–6.5 | OK |
| Nitrogen | 1.04 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 8.5 mg/kg | min 6 mg/kg | OK |
| Potassium | 108 mg/kg | min 100 mg/kg | OK |
| Rainfall | 400 mm | 500–800 mm | Low |
| Altitude | 200 m | 0–1,600 m | OK |
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag