Growing Sesame (Simsim) in Machakos

Soil suitability analysis based on Machakos's nutrient profile

Quick answer

Yes — Machakos is well suited to Sesame (Simsim). Machakos's soil (pH 7.03, near-neutral) gives Sesame (Simsim) a suitability score of 82/100. Match fertilizer to Machakos's nitrogen and phosphorus levels for the best result.

Machakos County is well suited to Sesame (Simsim), scoring 82/100 on ShambaIQ's soil-match model. At an average pH of 7.03 the soil sits above Sesame (Simsim)'s preferred 5.5–7 range, which can limit uptake of phosphorus and micronutrients. Nitrogen (0.82 g/kg), phosphorus (31.4 mg/kg) and potassium (338 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 #45 soil match of the 106 crops we assess for Machakos County. At current prices (about KES 350/kg) and a typical 250 kg/acre yield, a well-managed Sesame (Simsim) crop here can gross roughly KES 87,500 per acre.

82Suitability score

Soil & climate match

FactorMachakos soilSesame (Simsim) needsStatus
pH7.035.57Adjust
Nitrogen0.82 g/kgmin 0.5 g/kgOK
Phosphorus31.4 mg/kgmin 6 mg/kgOK
Potassium338 mg/kgmin 100 mg/kgOK
Rainfall700 mm300–800 mmOK
Altitude1,100 m0–1,600 mOK

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 250 kg/acre
Estimated revenueKES 87,500/acre

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