Growing Beans in Wajir

Soil suitability analysis based on Wajir's nutrient profile

Quick answer

Generally not ideal — Wajir is poorly suited to Beans. Wajir's soil (pH 8.4, alkaline) gives Beans a suitability score of 9/100. Match fertilizer to Wajir's nitrogen and phosphorus levels for the best result.

Wajir County is a challenging environment for Beans (soil-match score 9/100) and will need significant amendment before planting. At an average pH of 8.4 the soil sits above Beans's preferred 6–7 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 Beans's requirements, so a maintenance fertilizer programme is enough. Beans prefers loam soils, while Wajir is largely sandy, so drainage and organic-matter management matter more here. Wajir receives approximately 200 mm/year — well below Beans's minimum of 500 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Beans is the #17 soil match of the 106 crops we assess for Wajir County. Beans's full potential is about 800 kg/acre (~KES 104,000/acre at KES 130/kg), but at Wajir's 9/100 suitability a realistic target here is closer to 90 kg/acre (~KES 11,700/acre) unless the constraints above are addressed.

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

9Suitability score

Soil & climate match

FactorWajir soilBeans needsStatus
pH8.46–7Adjust
Nitrogen0.52 g/kgmin 0.5 g/kgOK
Phosphorus39.3 mg/kgmin 12 mg/kgOK
Potassium396 mg/kgmin 100 mg/kgOK
Rainfall200 mm500–1,600 mmLow
Altitude250 m0–2,500 mOK

Planting calendar for Wajir

Long Rains· March–May

March
Sowing & Basal Fertilizer (DAP)
April
1st Weeding & Thinning
May
Flowering Stage & Pest Control

Short Rains· October–DecemberMain season here

October
Sowing & Basal Fertilizer
November
1st Weeding & Thinning
December
Flowering Stage

Dry Season· January–March

January
Post-Harvest Storage
February
Land Resting
March
Seed Selection

Top dressing guide

Product
None
Timing
None required
Instruction
Beans fix their own Nitrogen. Do NOT apply CAN — it will reduce yield.
Bags per acre in Wajir
0

Wajir's nitrogen reads 0.52 g/kg, but the rate stays at zero: Beans is not top-dressed, for the crop-specific reason above.

Seed varieties for Wajir

Varieties suited to Wajir's 250 m altitude and 200 mm annual rainfall — 4 of 7 beans varieties we list.

KAT B1Dryland/Medium
KALRO · 60-65 days · 8-10 bags/acre
Yellow bean; highly tolerant to drought and heat.
KAT X56Dryland
KALRO · 65-70 days · 10-12 bags/acre
Red mottled; resistant to bean common mosaic virus.
NyotaDryland/Medium
KALRO · 65-70 days · 10-13 bags/acre
Navy bean type; iron-rich; KEPHIS certified; popular in export markets.
KAT X69Dryland
KALRO · 60-65 days · 8-11 bags/acre
Small red bean; heat tolerant; suited to semi-arid lowland conditions.

Economics

Market priceKES 130/kg
Expected yield in Wajir90 kg/acre
Estimated revenueKES 11,700/acre
Adjusted for Wajir's 9/100 suitability. Under ideal conditions Beans can reach 800 kg/acre (~KES 104,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureLoam

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