Growing Pigeon Peas in Nyamira

Soil suitability analysis based on Nyamira's nutrient profile

Pigeon Peas can be grown in Nyamira County, but the soil scores 49/100 and needs targeted management to reach full potential. Local soils average pH 5.58 — slightly acidic to near-neutral and inside the 5–8 band Pigeon Peas prefers, so no lime is usually required. Nitrogen (0.84 g/kg), phosphorus (11.6 mg/kg) and potassium (148 mg/kg) all meet Pigeon Peas's requirements, so a maintenance fertilizer programme is enough. Pigeon Peas prefers sandy soils, while Nyamira is largely clay loam, so drainage and organic-matter management matter more here. Pigeon Peas's full potential is about 600 kg/acre (~KES 45,000/acre at KES 75/kg), but at Nyamira's 49/100 suitability a realistic target here is closer to 368 kg/acre (~KES 27,600/acre) unless the constraints above are addressed.

49Suitability score

Soil & climate match

FactorNyamira soilPigeon Peas needsStatus
pH5.5858OK
Nitrogen0.84 g/kgmin 0.5 g/kgOK
Phosphorus11.6 mg/kgmin 6 mg/kgOK
Potassium148 mg/kgmin 100 mg/kgOK
Rainfall1,600 mm400–900 mmHigh
Altitude1,700 m0–1,800 mOK

Top dressing guide

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

Recommended seed varieties

ICEAP 00040Dryland
ICRISAT/KALRO · 150-180 days · 6-8 bags/acre
Early maturing; resistant to fusarium wilt.
KAT 60/8Dryland/Medium
KALRO · 120-150 days · 5-7 bags/acre
Short-duration; good for intercropping with maize.

Economics

Market priceKES 75/kg
Expected yield in Nyamira368 kg/acre
Estimated revenueKES 27,600/acre
Adjusted for Nyamira's 49/100 suitability. Under ideal conditions Pigeon Peas can reach 600 kg/acre (~KES 45,000/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(4,500)
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