Growing Sesame (Simsim) in Kericho

Soil suitability analysis based on Kericho's nutrient profile

Quick answer

Generally not ideal — Kericho is poorly suited to Sesame (Simsim). Kericho's soil (pH 5.94, slightly acidic) gives Sesame (Simsim) a suitability score of 30/100. Match fertilizer to Kericho's nitrogen and phosphorus levels for the best result.

Kericho County is a challenging environment for Sesame (Simsim) (soil-match score 30/100) and will need significant amendment before planting. Local soils average pH 5.94 — slightly acidic to near-neutral and inside the 5.5–7 band Sesame (Simsim) prefers, so no lime is usually required. Nitrogen (1.34 g/kg), phosphorus (23.7 mg/kg) and potassium (225 mg/kg) all meet Sesame (Simsim)'s requirements, so a maintenance fertilizer programme is enough. Sesame (Simsim) prefers sandy soils, while Kericho is largely clay, so drainage and organic-matter management matter more here. At 2000 m, the county sits above Sesame (Simsim)'s preferred altitude ceiling of 1600 m, where frost risk and cold nights reduce the crop's productivity. On ShambaIQ's soil-match model, Sesame (Simsim) is the #97 soil match of the 106 crops we assess for Kericho County. Sesame (Simsim)'s full potential is about 250 kg/acre (~KES 87,500/acre at KES 350/kg), but at Kericho's 30/100 suitability a realistic target here is closer to 94 kg/acre (~KES 32,900/acre) unless the constraints above are addressed.

Better matched to Kericho's soil: Kale (Sukuma Wiki), Sweet Potato, and Wambugu Apples — each scores higher on the same soil.

30Suitability score

Soil & climate match

FactorKericho soilSesame (Simsim) needsStatus
pH5.945.57OK
Nitrogen1.34 g/kgmin 0.5 g/kgOK
Phosphorus23.7 mg/kgmin 6 mg/kgOK
Potassium225 mg/kgmin 100 mg/kgOK
Rainfall1,800 mm300–800 mmHigh
Altitude2,000 m0–1,600 mHigh

Recommended seed varieties

KSS-6 (KS-S6)Lowland 200-1000m
Kenya Seed Company · 75 days · 7-9 bags/acre
Highly aromatic white seeds; high podding ability; rust & shootfly tolerant.

Economics

Market priceKES 350/kg
Expected yield in Kericho94 kg/acre
Estimated revenueKES 32,900/acre
Adjusted for Kericho's 30/100 suitability. Under ideal conditions Sesame (Simsim) can reach 250 kg/acre (~KES 87,500/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy

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