Growing Lentils in Kakamega

Soil suitability analysis based on Kakamega's nutrient profile

Quick answer

Possible but challenging — Kakamega is only marginally suited to Lentils. Kakamega's soil (pH 5.63, slightly acidic) gives Lentils a suitability score of 41/100. Match fertilizer to Kakamega's nitrogen and phosphorus levels for the best result.

Kakamega County is a challenging environment for Lentils (soil-match score 41/100) and will need significant amendment before planting. Local soils average pH 5.63 — slightly acidic to near-neutral and inside the 5.5–7.5 band Lentils prefers, so no lime is usually required. Nitrogen (1.01 g/kg), phosphorus (14 mg/kg) and potassium (147 mg/kg) all meet Lentils's requirements, so a maintenance fertilizer programme is enough. Lentils prefers sandy loam soils, while Kakamega is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Lentils is the #79 soil match of the 106 crops we assess for Kakamega County. Lentils's full potential is about 600 kg/acre (~KES 108,000/acre at KES 180/kg), but at Kakamega's 41/100 suitability a realistic target here is closer to 308 kg/acre (~KES 55,440/acre) unless the constraints above are addressed.

Better matched to Kakamega's soil: Soybeans, Rice (Lowland/Paddy), and Sweet Potato — each scores higher on the same soil.

41Suitability score

Soil & climate match

FactorKakamega soilLentils needsStatus
pH5.635.57.5OK
Nitrogen1.01 g/kgmin 0.5 g/kgOK
Phosphorus14 mg/kgmin 12 mg/kgOK
Potassium147 mg/kgmin 100 mg/kgOK
Rainfall1,900 mm350–800 mmHigh
Altitude1,500 m1,200–2,400 mOK

Recommended seed varieties

Local BrownLowland/Medium 600-1500m
Local · 100-110 days · 4-6 bags/acre
Local landrace; very popular in household consumption; high protein.
Local GreenLowland/Medium 600-1500m
Local · 90-100 days · 5-7 bags/acre
Early maturing; good market demand.

Economics

Market priceKES 180/kg
Expected yield in Kakamega308 kg/acre
Estimated revenueKES 55,440/acre
Adjusted for Kakamega's 41/100 suitability. Under ideal conditions Lentils can reach 600 kg/acre (~KES 108,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy Loam

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