Growing Lentils in Kitui

Soil suitability analysis based on Kitui's nutrient profile

Quick answer

Possible but challenging — Kitui is only marginally suited to Lentils. Kitui's soil (pH 7.03, near-neutral) gives Lentils a suitability score of 49/100. Match fertilizer to Kitui's nitrogen and phosphorus levels for the best result.

Lentils can be grown in Kitui County, but the soil scores 49/100 and needs targeted management to reach full potential. Local soils average pH 7.03 — neutral and inside the 5.5–7.5 band Lentils prefers, so no lime is usually required. Nitrogen (0.74 g/kg), phosphorus (30.5 mg/kg) and potassium (339 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 #58 soil match of the 106 crops we assess for Kitui County. Lentils's full potential is about 600 kg/acre (~KES 108,000/acre at KES 180/kg), but at Kitui's 49/100 suitability a realistic target here is closer to 368 kg/acre (~KES 66,240/acre) unless the constraints above are addressed.

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

49Suitability score

Soil & climate match

FactorKitui soilLentils needsStatus
pH7.035.57.5OK
Nitrogen0.74 g/kgmin 0.5 g/kgOK
Phosphorus30.5 mg/kgmin 12 mg/kgOK
Potassium339 mg/kgmin 100 mg/kgOK
Rainfall500 mm350–800 mmOK
Altitude900 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 Kitui368 kg/acre
Estimated revenueKES 66,240/acre
Adjusted for Kitui's 49/100 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