Growing Bambara Nuts in Machakos

Soil suitability analysis based on Machakos's nutrient profile

Quick answer

Yes, with the right inputs — Machakos is moderately suited to Bambara Nuts. Machakos's soil (pH 7.03, near-neutral) gives Bambara Nuts a suitability score of 71/100. Match fertilizer to Machakos's nitrogen and phosphorus levels for the best result.

Machakos County is a solid choice for Bambara Nuts, with a soil-match score of 71/100. At an average pH of 7.03 the soil sits above Bambara Nuts's preferred 5–6.5 range, which can limit uptake of phosphorus and micronutrients. Nitrogen (0.82 g/kg), phosphorus (31.4 mg/kg) and potassium (338 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 #69 soil match of the 106 crops we assess for Machakos County. Bambara Nuts's full potential is about 400 kg/acre (~KES 60,000/acre at KES 150/kg), but at Machakos's 71/100 suitability a realistic target here is closer to 355 kg/acre (~KES 53,250/acre) unless the constraints above are addressed.

71Suitability score

Soil & climate match

FactorMachakos soilBambara Nuts needsStatus
pH7.0356.5Adjust
Nitrogen0.82 g/kgmin 0.5 g/kgOK
Phosphorus31.4 mg/kgmin 6 mg/kgOK
Potassium338 mg/kgmin 100 mg/kgOK
Rainfall700 mm500–800 mmOK
Altitude1,100 m0–1,600 mOK

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 Machakos355 kg/acre
Estimated revenueKES 53,250/acre
Adjusted for Machakos's 71/100 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