Growing Chilies in Tana River

Soil suitability analysis based on Tana River's nutrient profile

Quick answer

Possible but challenging — Tana River is only marginally suited to Chilies. Tana River's soil (pH 6.4, slightly acidic) gives Chilies a suitability score of 53/100. Match fertilizer to Tana River's nitrogen and phosphorus levels for the best result.

Chilies can be grown in Tana River County, but the soil scores 53/100 and needs targeted management to reach full potential. Local soils average pH 6.4 — slightly acidic to near-neutral and inside the 6–7.5 band Chilies prefers, so no lime is usually required. The main gap is phosphorus and potassium — measured at N 1.04 g/kg, P 8.5 mg/kg, K 108 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly sandy soils suit Chilies, which favours sandy loam. Chilies's full potential is about 2,500 kg/acre (~KES 412,500/acre at KES 165/kg), but at Tana River's 53/100 suitability a realistic target here is closer to 1,656 kg/acre (~KES 273,240/acre) unless the constraints above are addressed.

53Suitability score

Soil & climate match

FactorTana River soilChilies needsStatus
pH6.467.5OK
Nitrogen1.04 g/kgmin 0.8 g/kgOK
Phosphorus8.5 mg/kgmin 12 mg/kgLow
Potassium108 mg/kgmin 150 mg/kgLow
Rainfall400 mm500–1,200 mmLow
Altitude200 m0–1,200 mOK

Top dressing guide

Product
CAN
Timing
Week 3-4 after transplanting
Instruction
Apply when plants are established. Chilies respond well to split nitrogen applications.
Bags per Acre
0.5

Recommended seed varieties

Pilipili KichaaDryland/Medium
Local/KALRO · 90-120 days · 1000–1500 kg/acre
Very pungent; high market demand; drought tolerant.
Cayenne LongMedium
Simlaw Seeds · 80-100 days · 1250–1750 kg/acre
High yield; good for drying and fresh market.

Economics

Market priceKES 165/kg
Expected yield in Tana River1,656 kg/acre
Estimated revenueKES 273,240/acre
Adjusted for Tana River's 53/100 suitability. Under ideal conditions Chilies can reach 2,500 kg/acre (~KES 412,500/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(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