Cashew Nuts farming guide — Kenya
Soil requirements, top counties, seed varieties, fertilizer plan & economics
To grow cashew nuts in Kenya, aim for soil pH 5–7.5 (sandy soils); the best-suited counties are Mombasa, Lamu, Kilifi, Kwale, Tana River. Apply DAP or NPK at planting and top-dress with CAN at Start of rains biannual. A well-managed crop yields about 900 kg/acre (~KES 247,500 gross per acre).
Interested in starting or scaling cashew nuts farming in Kenya? This comprehensive guide maps out the optimal soil requirements (such as target pH ranges), the most suitable counties for growing cashew nuts, 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 Cashew Nuts
Cashew Nuts does best with 600–1,500 mm of rainfall a year at 0–500 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 Cashew Nuts in Kenya
To achieve maximum yields when farming cashew nuts in Kenya, managing soil suitability is crucial. This crop performs best within a soil pH range of 5 to 7.5. 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. Cashew Nuts 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 CAN at Start of rains biannual), ensures high crop quality and protects your overall farm investment.
How to grow cashew nuts in Kenya
- 1Prepare the soilEnsure soil pH is between 5 and 7.5. Preferred texture: Sandy. Apply agricultural lime if your pH is below 5, ideally 30 days before planting.
- 2Plant at the right timeSelect certified cashew nuts seed varieties suited to your altitude zone and plant at the onset of the rains.
- 3Apply basal fertilizerCashew Nuts needs low nitrogen, low phosphorus, and medium potassium. Apply a balanced basal fertilizer such as DAP or NPK at planting.
- 4Top-dressAt Start of rains biannual, apply 0.3 bag(s) per acre of CAN. Apply in a ring around the drip line. Young trees need less — scale up as canopy develops.
- 5Monitor and harvestScout regularly for pests and disease. Expected yield is about 900 kg/acre at roughly KES 275/kg.
Best counties for Cashew Nuts
Challenging counties for Cashew Nuts
These counties may need soil amendments for Cashew Nuts
Certified seed varieties
Economics
Top dressing
Apply in a ring around the drip line. Young trees need less — scale up as canopy develops.
Fertilizer prices
Subsidized price / 50kg bag
Frequently asked questions about cashew nuts farming in Kenya
What soil pH is best for growing cashew nuts in Kenya?
Cashew Nuts grows best in soil with a pH of 5 to 7.5. If your soil is more acidic than pH 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 cashew nuts farming in Kenya?
By soil suitability, the top counties for cashew nuts are Mombasa, Lamu, Kilifi, Kwale, Tana River. A full ranking of all 47 counties, each with a suitability score, is shown above.
What fertilizer does cashew nuts need?
Cashew Nuts 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 0.3 bag(s) per acre of CAN at Start of rains biannual.
How much can I earn from cashew nuts per acre in Kenya?
Cashew Nuts yields about 900 kg per acre. At a market price of roughly KES 275/kg, that is around KES 247,500 per acre in gross revenue, before input and labour costs.
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