Growing Cowpeas in Isiolo

Soil suitability analysis based on Isiolo's nutrient profile

Isiolo County is a solid choice for Cowpeas, with a soil-match score of 67/100. Local soils average pH 7.83 — alkaline and inside the 5–8 band Cowpeas prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.46 g/kg, P 37.4 mg/kg, K 395 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. At current prices (about KES 65/kg) and a typical 350 kg/acre yield, a well-managed Cowpeas crop here can gross roughly KES 22,750 per acre.

67Suitability score

Soil match analysis

NutrientIsiolo soilCowpeas needsStatus
pH7.8358OK
Nitrogen0.46 g/kgmin 0.5 g/kgLow
Phosphorus37.4 mg/kgmin 6 mg/kgOK
Potassium395 mg/kgmin 100 mg/kgOK

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 yield350 kg/acre
Estimated revenueKES 22,750/acre

Preferred textureSandy

Fertilizer prices

DAP
KES 2,500(6,500)
CAN
KES 2,500(4,500)
NPK 17:17:17
KES 2,500(5,600)
Urea
KES 2,500(5,500)
Lime
KES 1,500(1,800)

Green = subsidized · (Commercial) per 50kg bag