Growing Bambara Nuts in Nandi

Soil suitability analysis based on Nandi's nutrient profile

Quick answer

Possible but challenging — Nandi is only marginally suited to Bambara Nuts. Nandi's soil (pH 6.17, slightly acidic) gives Bambara Nuts a suitability score of 40/100. Match fertilizer to Nandi's nitrogen and phosphorus levels for the best result.

Nandi County is a challenging environment for Bambara Nuts (soil-match score 40/100) and will need significant amendment before planting. Local soils average pH 6.17 — slightly acidic to near-neutral and inside the 5–6.5 band Bambara Nuts prefers, so no lime is usually required. Nitrogen (1.37 g/kg), phosphorus (26.4 mg/kg) and potassium (207 mg/kg) all meet Bambara Nuts's requirements, so a maintenance fertilizer programme is enough. Bambara Nuts prefers sandy soils, while Nandi is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Bambara Nuts is the #97 soil match of the 106 crops we assess for Nandi County. Bambara Nuts's full potential is about 400 kg/acre (~KES 60,000/acre at KES 150/kg), but at Nandi's 40/100 suitability a realistic target here is closer to 200 kg/acre (~KES 30,000/acre) unless the constraints above are addressed.

Better matched to Nandi's soil: Garden Peas, Maize, and Kale (Sukuma Wiki) — each scores higher on the same soil.

40Suitability score

Soil & climate match

FactorNandi soilBambara Nuts needsStatus
pH6.1756.5OK
Nitrogen1.37 g/kgmin 0.5 g/kgOK
Phosphorus26.4 mg/kgmin 6 mg/kgOK
Potassium207 mg/kgmin 100 mg/kgOK
Rainfall1,400 mm500–800 mmHigh
Altitude1,900 m0–1,600 mHigh

Recommended seed varieties

Local CreamLowland/Medium 0-1600m
Local · 120-150 days · 4-6 bags/acre
Drought resistant; pods develop underground; high protein and soil building.
Local RedLowland/Medium 0-1600m
Local · 130-160 days · 3-5 bags/acre
Highly nutritious; rich in iron; excellent drought tolerance.

Economics

Market priceKES 150/kg
Expected yield in Nandi200 kg/acre
Estimated revenueKES 30,000/acre
Adjusted for Nandi's 40/100 suitability. Under ideal conditions Bambara Nuts can reach 400 kg/acre (~KES 60,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy

Fertilizer prices

DAP
KES 3,500(6,500)
CAN
KES 2,875(5,700)
NPK 17:17:17
KES 3,275(5,600)
Urea
KES 3,500(5,500)
Lime
KES 1,500(1,800)

Green = subsidized · (Commercial) per 50kg bag