Growing Sesame (Simsim) in Laikipia

Soil suitability analysis based on Laikipia's nutrient profile

Quick answer

Yes, with the right inputs — Laikipia is moderately suited to Sesame (Simsim). Laikipia's soil (pH 4.99, strongly acidic) gives Sesame (Simsim) a suitability score of 65/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Laikipia County is a solid choice for Sesame (Simsim), with a soil-match score of 65/100. At an average pH of 4.99 the soil is strongly acidic, below Sesame (Simsim)'s preferred 5.5–7 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.42 g/kg), phosphorus (16.6 mg/kg) and potassium (215 mg/kg) all meet Sesame (Simsim)'s requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Sesame (Simsim), which favours sandy. On ShambaIQ's soil-match model, Sesame (Simsim) is the #32 soil match of the 106 crops we assess for Laikipia County. Sesame (Simsim)'s full potential is about 250 kg/acre (~KES 87,500/acre at KES 350/kg), but at Laikipia's 65/100 suitability a realistic target here is closer to 203 kg/acre (~KES 71,050/acre) unless the constraints above are addressed.

65Suitability score

Soil & climate match

FactorLaikipia soilSesame (Simsim) needsStatus
pH4.995.57Adjust
Nitrogen1.42 g/kgmin 0.5 g/kgOK
Phosphorus16.6 mg/kgmin 6 mg/kgOK
Potassium215 mg/kgmin 100 mg/kgOK
Rainfall600 mm300–800 mmOK
Altitude1,700 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 Laikipia203 kg/acre
Estimated revenueKES 71,050/acre
Adjusted for Laikipia's 65/100 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