Growing Lentils in Makueni

Soil suitability analysis based on Makueni's nutrient profile

Quick answer

Possible but challenging — Makueni is only marginally suited to Lentils. Makueni's soil (pH 7.5, alkaline) gives Lentils a suitability score of 53/100. Match fertilizer to Makueni's nitrogen and phosphorus levels for the best result.

Lentils can be grown in Makueni County, but the soil scores 53/100 and needs targeted management to reach full potential. Local soils average pH 7.5 — alkaline and inside the 5.5–7.5 band Lentils prefers, so no lime is usually required. Nitrogen (0.86 g/kg), phosphorus (29.6 mg/kg) and potassium (351 mg/kg) all meet Lentils's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Lentils, which favours sandy loam. On ShambaIQ's soil-match model, Lentils is the #65 soil match of the 106 crops we assess for Makueni County. Lentils's full potential is about 600 kg/acre (~KES 108,000/acre at KES 180/kg), but at Makueni's 53/100 suitability a realistic target here is closer to 398 kg/acre (~KES 71,640/acre) unless the constraints above are addressed.

Better matched to Makueni's soil: Lucerne, Mango, and Sisal — each scores higher on the same soil.

53Suitability score

Soil & climate match

FactorMakueni soilLentils needsStatus
pH7.55.57.5OK
Nitrogen0.86 g/kgmin 0.5 g/kgOK
Phosphorus29.6 mg/kgmin 12 mg/kgOK
Potassium351 mg/kgmin 100 mg/kgOK
Rainfall600 mm350–800 mmOK
Altitude1,000 m1,200–2,400 mLow

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 Makueni398 kg/acre
Estimated revenueKES 71,640/acre
Adjusted for Makueni's 53/100 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