Growing Bambara Nuts in Samburu
Soil suitability analysis based on Samburu's nutrient profile
Generally not ideal — Samburu is poorly suited to Bambara Nuts. Samburu's soil (pH 8.28, alkaline) gives Bambara Nuts a suitability score of 25/100. Match fertilizer to Samburu's nitrogen and phosphorus levels for the best result.
Samburu County is a challenging environment for Bambara Nuts (soil-match score 25/100) and will need significant amendment before planting. At an average pH of 8.28 the soil sits above Bambara Nuts's preferred 5–6.5 range, which can limit uptake of phosphorus and micronutrients. Nitrogen (0.67 g/kg), phosphorus (42.1 mg/kg) and potassium (387 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. Samburu receives approximately 350 mm/year — well below Bambara Nuts's minimum of 500 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Bambara Nuts is the #37 soil match of the 106 crops we assess for Samburu County. Bambara Nuts's full potential is about 400 kg/acre (~KES 60,000/acre at KES 150/kg), but at Samburu's 25/100 suitability a realistic target here is closer to 125 kg/acre (~KES 18,750/acre) unless the constraints above are addressed.
Better matched to Samburu's soil: Sisal, Aloe Vera, and Green Grams — each scores higher on the same soil.
Soil & climate match
| Factor | Samburu soil | Bambara Nuts needs | Status |
|---|---|---|---|
| pH | 8.28 | 5–6.5 | Adjust |
| Nitrogen | 0.67 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 42.1 mg/kg | min 6 mg/kg | OK |
| Potassium | 387 mg/kg | min 100 mg/kg | OK |
| Rainfall | 350 mm | 500–800 mm | Low |
| Altitude | 900 m | 0–1,600 m | OK |
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag