Growing Lentils in Kiambu

Soil suitability analysis based on Kiambu's nutrient profile

Quick answer

Yes, with the right inputs — Kiambu is moderately suited to Lentils. Kiambu's soil (pH 5.28, strongly acidic) gives Lentils a suitability score of 60/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Kiambu County is a solid choice for Lentils, with a soil-match score of 60/100. At an average pH of 5.28 the soil is moderately acidic, below Lentils's preferred 5.5–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.01 g/kg), phosphorus (13.7 mg/kg) and potassium (169 mg/kg) all meet Lentils's requirements, so a maintenance fertilizer programme is enough. Lentils prefers sandy loam soils, while Kiambu is largely clay, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Lentils is the #64 soil match of the 106 crops we assess for Kiambu County. Lentils's full potential is about 600 kg/acre (~KES 108,000/acre at KES 180/kg), but at Kiambu's 60/100 suitability a realistic target here is closer to 450 kg/acre (~KES 81,000/acre) unless the constraints above are addressed.

60Suitability score

Soil & climate match

FactorKiambu soilLentils needsStatus
pH5.285.57.5Adjust
Nitrogen1.01 g/kgmin 0.5 g/kgOK
Phosphorus13.7 mg/kgmin 12 mg/kgOK
Potassium169 mg/kgmin 100 mg/kgOK
Rainfall1,100 mm350–800 mmHigh
Altitude1,700 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 Kiambu450 kg/acre
Estimated revenueKES 81,000/acre
Adjusted for Kiambu's 60/100 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