Growing Bambara Nuts in Tharaka Nithi
Soil suitability analysis based on Tharaka Nithi's nutrient profile
Yes — Tharaka Nithi is well suited to Bambara Nuts. Tharaka Nithi's soil (pH 4.99, strongly acidic) gives Bambara Nuts a suitability score of 79/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Tharaka Nithi County is well suited to Bambara Nuts, scoring 79/100 on ShambaIQ's soil-match model. At an average pH of 4.99 the soil is strongly acidic, below Bambara Nuts's preferred 5–6.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.23 g/kg), phosphorus (19.6 mg/kg) and potassium (211 mg/kg) all meet Bambara Nuts's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Bambara Nuts, which favours sandy. On ShambaIQ's soil-match model, Bambara Nuts is the #8 soil match of the 106 crops we assess for Tharaka Nithi County. At current prices (about KES 150/kg) and a typical 400 kg/acre yield, a well-managed Bambara Nuts crop here can gross roughly KES 60,000 per acre.
Soil & climate match
| Factor | Tharaka Nithi soil | Bambara Nuts needs | Status |
|---|---|---|---|
| pH | 4.99 | 5–6.5 | Adjust |
| Nitrogen | 1.23 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 19.6 mg/kg | min 6 mg/kg | OK |
| Potassium | 211 mg/kg | min 100 mg/kg | OK |
| Rainfall | 900 mm | 500–800 mm | High |
| Altitude | 1,100 m | 0–1,600 m | OK |
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag