Growing Cowpeas in Wajir
Soil suitability analysis based on Wajir's nutrient profile
Wajir County is a challenging environment for Cowpeas (soil-match score 36/100) and will need significant amendment before planting. At an average pH of 8.4 the soil sits above Cowpeas's preferred 5–8 range, which can limit uptake of phosphorus and micronutrients. Nitrogen (0.52 g/kg), phosphorus (39.3 mg/kg) and potassium (396 mg/kg) all meet Cowpeas's requirements, so a maintenance fertilizer programme is enough. 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.
Suitability score
Soil match analysis
| Nutrient | Wajir soil | Cowpeas needs | Status |
|---|---|---|---|
| pH | 8.4 | 5–8 | Adjust |
| Nitrogen | 0.52 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 39.3 mg/kg | min 6 mg/kg | OK |
| Potassium | 396 mg/kg | min 100 mg/kg | OK |
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