Growing Pineapple in Tharaka Nithi

Soil suitability analysis based on Tharaka Nithi's nutrient profile

Quick answer

Yes, with the right inputs — Tharaka Nithi is moderately suited to Pineapple. Tharaka Nithi's soil (pH 4.99, strongly acidic) gives Pineapple a suitability score of 72/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Tharaka Nithi County is a solid choice for Pineapple, with a soil-match score of 72/100. Local soils average pH 4.99 — strongly acidic and inside the 4.5–6.5 band Pineapple prefers, so no lime is usually required. Nitrogen (1.23 g/kg), phosphorus (19.6 mg/kg) and potassium (211 mg/kg) all meet Pineapple's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Pineapple, which favours sandy loam. On ShambaIQ's soil-match model, Pineapple is the #14 soil match of the 106 crops we assess for Tharaka Nithi County. At current prices (about KES 35/kg) and a typical 25,000 kg/acre yield, a well-managed Pineapple crop here can gross roughly KES 875,000 per acre.

72Suitability score

Soil & climate match

FactorTharaka Nithi soilPineapple needsStatus
pH4.994.56.5OK
Nitrogen1.23 g/kgmin 0.8 g/kgOK
Phosphorus19.6 mg/kgmin 6 mg/kgOK
Potassium211 mg/kgmin 200 mg/kgOK
Rainfall900 mm1,000–1,500 mmLow
Altitude1,100 m0–1,800 mOK

Planting calendar

Long Rains

Month 1
Ratoon sucker planting & Basal NPK
Month 2
Weed Control & Foliar Feed
Month 3
Fruit Development Monitoring

Short Rains

Month 1
Top Dressing & Weed Control
Month 2
Flower Induction (ethephon if needed)
Month 3
Fruit Fill & Disease Scouting

Dry Season

Month 1
Harvesting & Ratoon Management
Month 2
Irrigation & Top Dressing
Month 3
New Sucker Selection & Planting

Top dressing guide

Product
CAN
Timing
Months 3, 6 and 9 after planting
Instruction
Split-apply at the leaf axils; add Sulphate of Potash (not MOP — pineapple is chloride-sensitive)
Bags per Acre
1

Recommended seed varieties

Smooth CayenneCoastal/Medium
Del Monte/KALRO · 450-540 days · 36–49.5 tons/acre
Main processing variety; cylindrical fruit; high juice; grown by Del Monte Thika.
MD2 (Gold)Coastal/Medium
Del Monte · 420-510 days · 36–49.5 tons/acre
Super-sweet hybrid; golden flesh; premium fresh export; high vitamin C.
Queen VictoriaCoastal
KALRO · 450-540 days · 27–40.5 tons/acre
Small sweet fruit; popular fresh local market; tolerant to coastal conditions.

Economics

Market priceKES 35/kg
Expected yield in Tharaka Nithi22,500 kg/acre
Estimated revenueKES 787,500/acre
Adjusted for Tharaka Nithi's 72/100 suitability. Under ideal conditions Pineapple can reach 25,000 kg/acre (~KES 875,000/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(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