Growing Capsicum in Makueni

Soil suitability analysis based on Makueni's nutrient profile

Quick answer

Yes, with the right inputs — Makueni is moderately suited to Capsicum. Makueni's soil (pH 7.5, alkaline) gives Capsicum a suitability score of 66/100. Match fertilizer to Makueni's nitrogen and phosphorus levels for the best result.

Makueni County is a solid choice for Capsicum, with a soil-match score of 66/100. At an average pH of 7.5 the soil sits above Capsicum's preferred 5.5–7 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.86 g/kg, P 29.6 mg/kg, K 351 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Capsicum, which favours loam. Capsicum's full potential is about 6,000 kg/acre (~KES 540,000/acre at KES 90/kg), but at Makueni's 66/100 suitability a realistic target here is closer to 4,950 kg/acre (~KES 445,500/acre) unless the constraints above are addressed.

66Suitability score

Soil & climate match

FactorMakueni soilCapsicum needsStatus
pH7.55.57Adjust
Nitrogen0.86 g/kgmin 1.2 g/kgLow
Phosphorus29.6 mg/kgmin 20 mg/kgOK
Potassium351 mg/kgmin 200 mg/kgOK
Rainfall600 mm600–1,200 mmOK
Altitude1,000 m0–2,000 mOK

Top dressing guide

Product
CAN
Timing
Week 3, 6, and 9 after transplanting
Instruction
Split into 3 applications. Add foliar potassium at fruiting stage for fruit size and quality.
Bags per Acre
0.5

Recommended seed varieties

California WonderMedium/Highland
Simlaw Seeds · 75-85 days · 3–4 tons/acre
Large blocky fruits; excellent fresh market demand.
Yolo WonderMedium
East Africa Seeds · 70-80 days · 2.5–3.5 tons/acre
Open-pollinated; reliable yield; tolerant to tobacco mosaic virus.

Economics

Market priceKES 90/kg
Expected yield in Makueni4,950 kg/acre
Estimated revenueKES 445,500/acre
Adjusted for Makueni's 66/100 suitability. Under ideal conditions Capsicum can reach 6,000 kg/acre (~KES 540,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureLoam

Fertilizer prices

DAP
KES 3,500(6,500)
CAN
KES 2,875(4,500)
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