Cassava farming guide — Kenya
Soil requirements, top counties, seed varieties, fertilizer plan & economics
To grow cassava in Kenya, aim for soil pH 4.5–7 (sandy soils); the best-suited counties are Kisumu, Migori, Baringo, Busia, Siaya. Apply DAP or NPK at planting and top-dress with None at None required. A well-managed crop yields about 6,000 kg/acre (~KES 90,000 gross per acre).
Interested in starting or scaling cassava farming in Kenya? This comprehensive guide maps out the optimal soil requirements (such as target pH ranges), the most suitable counties for growing cassava, certified seed varieties, seasonal fertilizer guidelines, and a detailed per-acre production budget to set you up for a successful harvest.
Soil requirements
Growing conditions for Cassava
Cassava does best with 500–1,500 mm of rainfall a year at 0–1,400 m above sea level. In drier areas, irrigation or water harvesting closes the gap; outside the altitude band, growth and yields drop.
Optimizing soil and fertilizers for Cassava in Kenya
To achieve maximum yields when farming cassava in Kenya, managing soil suitability is crucial. This crop performs best within a soil pH range of 4.5 to 7. 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. Cassava has a low nitrogen requirement, low phosphorus requirement, and medium 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 None at None required), ensures high crop quality and protects your overall farm investment.
How to grow cassava in Kenya
- 1Prepare the soilEnsure soil pH is between 4.5 and 7. Preferred texture: Sandy. Apply agricultural lime if your pH is below 4.5, ideally 30 days before planting.
- 2Plant at the right timePlant cassava during Long Rains (Stem Cutting Planting–Growth Monitoring) or Short Rains (Weeding & Mound Formation–Growth Monitoring) or Dry Season (Harvesting (12+ months from planting)–Land Preparation for next crop), timed to the start of the rains.
- 3Apply basal fertilizerCassava needs low nitrogen, low phosphorus, and medium potassium. Apply a balanced basal fertilizer such as DAP or NPK at planting.
- 4Top-dressAt None required, apply 0 bag(s) per acre of None. Cassava is low-input. Excessive N causes leafy growth at expense of tubers.
- 5Monitor and harvestScout regularly for pests and disease. Expected yield is about 6,000 kg/acre at roughly KES 15/kg.
Best counties for Cassava
Challenging counties for Cassava
These counties may need soil amendments for Cassava
Certified seed varieties
Planting calendar
Long Rains
Short Rains
Dry Season
Economics
Top dressing
Cassava is low-input. Excessive N causes leafy growth at expense of tubers.
Fertilizer prices
Subsidized price / 50kg bag
Frequently asked questions about cassava farming in Kenya
What soil pH is best for growing cassava in Kenya?
Cassava grows best in soil with a pH of 4.5 to 7. If your soil is more acidic than pH 4.5, apply agricultural lime about 30 days before planting to raise the pH and free up nutrients. The preferred soil texture is sandy.
Which counties are best for cassava farming in Kenya?
By soil suitability, the top counties for cassava are Kisumu, Migori, Baringo, Busia, Siaya. A full ranking of all 47 counties, each with a suitability score, is shown above.
What fertilizer does cassava need?
Cassava has low nitrogen, low phosphorus, and medium potassium requirements. Apply a balanced basal fertilizer such as DAP or NPK at planting, then top-dress with 0 bag(s) per acre of None at None required.
When should I plant cassava in Kenya?
Plant cassava during Long Rains (Stem Cutting Planting to Growth Monitoring) or Short Rains (Weeding & Mound Formation to Growth Monitoring) or Dry Season (Harvesting (12+ months from planting) to Land Preparation for next crop), timed to the start of the rains in your area.
How much can I earn from cassava per acre in Kenya?
Cassava yields about 6,000 kg per acre. At a market price of roughly KES 15/kg, that is around KES 90,000 per acre in gross revenue, before input and labour costs.
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