Growing Cowpeas in Turkana

Soil suitability analysis based on Turkana's nutrient profile

Quick answer

Yes, with the right inputs — Turkana is moderately suited to Cowpeas. Turkana's soil (pH 7.95, alkaline) gives Cowpeas a suitability score of 60/100. Match fertilizer to Turkana's nitrogen and phosphorus levels for the best result.

Turkana County is a solid choice for Cowpeas, with a soil-match score of 60/100. Local soils average pH 7.95 — alkaline and inside the 5–8 band Cowpeas prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.41 g/kg, P 38.5 mg/kg, K 417 mg/kg against this crop's low/low/low demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Cowpeas, which favours sandy. On ShambaIQ's soil-match model, Cowpeas is the #5 soil match of the 106 crops we assess for Turkana County. Cowpeas's full potential is about 450 kg/acre (~KES 29,250/acre at KES 65/kg), but at Turkana's 60/100 suitability a realistic target here is closer to 338 kg/acre (~KES 21,970/acre) unless the constraints above are addressed.

60Suitability score

Soil & climate match

FactorTurkana soilCowpeas needsStatus
pH7.9558OK
Nitrogen0.41 g/kgmin 0.5 g/kgLow
Phosphorus38.5 mg/kgmin 6 mg/kgOK
Potassium417 mg/kgmin 100 mg/kgOK
Rainfall300 mm250–700 mmOK
Altitude400 m0–1,800 mOK

Top dressing guide

Product
None
Timing
None required
Instruction
Cowpeas fix atmospheric Nitrogen. No top dressing needed.
Bags per Acre
0

Recommended seed varieties

KVU 27-1Dryland
KALRO · 60-70 days · 4-6 bags/acre
Dual purpose (grain and fodder); drought tolerant.
M66Dryland/Medium
KALRO · 55-65 days · 5-8 bags/acre
Early maturing; resistant to aphids and pod borers.

Economics

Market priceKES 65/kg
Expected yield in Turkana338 kg/acre
Estimated revenueKES 21,970/acre
Adjusted for Turkana's 60/100 suitability. Under ideal conditions Cowpeas can reach 450 kg/acre (~KES 29,250/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