Potato farming guide — Kenya

Soil requirements, top counties, seed varieties, fertilizer plan & economics

Interested in starting or scaling potato farming in Kenya? This comprehensive guide maps out the optimal soil requirements (such as target pH ranges), the most suitable counties for growing potato, certified seed varieties, seasonal fertilizer guidelines, and a detailed per-acre production budget to set you up for a successful harvest.

Soil requirements

pH range
4.8–6.5
Nitrogen
high
Phosphorus
high
Potassium
high
Preferred texture: Sandy Loam

Optimizing soil and fertilizers for Potato in Kenya

To achieve maximum yields when farming potato in Kenya, managing soil suitability is crucial. This crop performs best within a soil pH range of 4.8 to 6.5. Soils that fall outside this range can lock out essential macro and micro-nutrients, leading to stunted growth or crop failure. For acidic soils, applying dolomitic or calcitic agricultural lime is recommended at least 30 days before planting to normalize acidity.

Fertilizer application should be calibrated based on the crop’s nutrient demands. Potato has a high nitrogen requirement, high phosphorus requirement, and high potassium demand. Using certified seed varieties suited for your specific altitude and rainfall pattern, combined with a precise basal and top-dressing program (such as applying a balanced NPK compound), ensures high crop quality and protects your overall farm investment.

Best counties for Potato

Challenging counties for Potato

These counties may need soil amendments for Potato

Certified seed varieties

ShangiMedium/Highland
KALRO · 80-90 days · 300-350 bags/acre
Very fast cooking; high tuber density per plant.
UnicaDryland/Medium
KALRO · 90-100 days · 350-400 bags/acre
Heat tolerant; highly resistant to late blight.

Planting calendar

Long Rains

Month 1
Planting Tubers & Basal Fertilizer (NPK)
Month 2
Earthing Up & Top Dressing (CAN)
Month 3
Pest Control (Blight) & Weeding

Short Rains

Month 1
Planting & Basal Fertilizer
Month 2
Earthing Up & Top Dressing
Month 3
Blight Control

Dry Season

Month 1
Harvesting & Storage
Month 2
Land Resting
Month 3
Seed Tuber Sprouting

Economics

Market priceKES 32/kg
Expected yield4,000 kg/acre

Est. revenueKES 128,000/acre

Fertilizer prices

DAPKES 2,500
CANKES 2,500
NPK 17:17:17KES 2,500
UreaKES 2,500
LimeKES 1,500

Subsidized price / 50kg bag

Check your county for Potato