Growing Pigeon Peas in Marsabit

Soil suitability analysis based on Marsabit's nutrient profile

Quick answer

Generally not ideal — Marsabit is poorly suited to Pigeon Peas. Marsabit's soil (pH 8.22, alkaline) gives Pigeon Peas a suitability score of 34/100. Match fertilizer to Marsabit's nitrogen and phosphorus levels for the best result.

Marsabit County is a challenging environment for Pigeon Peas (soil-match score 34/100) and will need significant amendment before planting. At an average pH of 8.22 the soil sits above Pigeon Peas's preferred 5–8 range, which can limit uptake of phosphorus and micronutrients. Nitrogen (0.52 g/kg), phosphorus (37.3 mg/kg) and potassium (420 mg/kg) all meet Pigeon Peas's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy soils suit Pigeon Peas, which favours sandy. On ShambaIQ's soil-match model, Pigeon Peas is the #18 soil match of the 106 crops we assess for Marsabit County. Pigeon Peas's full potential is about 600 kg/acre (~KES 45,000/acre at KES 75/kg), but at Marsabit's 34/100 suitability a realistic target here is closer to 255 kg/acre (~KES 19,125/acre) unless the constraints above are addressed.

Better matched to Marsabit's soil: Sisal, Chia, and Aloe Vera — each scores higher on the same soil.

34Suitability score

Soil & climate match

FactorMarsabit soilPigeon Peas needsStatus
pH8.2258Adjust
Nitrogen0.52 g/kgmin 0.5 g/kgOK
Phosphorus37.3 mg/kgmin 6 mg/kgOK
Potassium420 mg/kgmin 100 mg/kgOK
Rainfall300 mm400–900 mmLow
Altitude1,100 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 Marsabit255 kg/acre
Estimated revenueKES 19,125/acre
Adjusted for Marsabit's 34/100 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(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