Soybeans farming guide — Kenya
Soil requirements, top counties, seed varieties, fertilizer plan & economics
To grow soybeans in Kenya, aim for soil pH 5–7 (loam soils); the best-suited counties are Narok, West Pokot, Baringo, Elgeyo Marakwet, Nakuru. Apply DAP or NPK at planting and top-dress with None at None required. A well-managed crop yields about 700 kg/acre (~KES 52,500 gross per acre).
Interested in starting or scaling soybeans farming in Kenya? This comprehensive guide maps out the optimal soil requirements (such as target pH ranges), the most suitable counties for growing soybeans, 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 Soybeans
Soybeans does best with 600–2,000 mm of rainfall a year at 0–1,800 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 Soybeans in Kenya
To achieve maximum yields when farming soybeans in Kenya, managing soil suitability is crucial. This crop performs best within a soil pH range of 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. Soybeans has a low nitrogen requirement, medium 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 soybeans in Kenya
- 1Prepare the soilEnsure soil pH is between 5 and 7. Preferred texture: Loam. Apply agricultural lime if your pH is below 5, ideally 30 days before planting.
- 2Plant at the right timeSelect certified soybeans seed varieties suited to your altitude zone and plant at the onset of the rains.
- 3Apply basal fertilizerSoybeans needs low nitrogen, medium 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. Soybeans fix their own Nitrogen. Do NOT apply CAN — it suppresses nodulation and reduces yield.
- 5Monitor and harvestScout regularly for pests and disease. Expected yield is about 700 kg/acre at roughly KES 75/kg.
Best counties for Soybeans
Challenging counties for Soybeans
These counties may need soil amendments for Soybeans
Certified seed varieties
Economics
Top dressing
Soybeans fix their own Nitrogen. Do NOT apply CAN — it suppresses nodulation and reduces yield.
Fertilizer prices
Subsidized price / 50kg bag
Frequently asked questions about soybeans farming in Kenya
What soil pH is best for growing soybeans in Kenya?
Soybeans grows best in soil with a pH of 5 to 7. 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 loam.
Which counties are best for soybeans farming in Kenya?
By soil suitability, the top counties for soybeans are Narok, West Pokot, Baringo, Elgeyo Marakwet, Nakuru. A full ranking of all 47 counties, each with a suitability score, is shown above.
What fertilizer does soybeans need?
Soybeans has low nitrogen, medium 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.
How much can I earn from soybeans per acre in Kenya?
Soybeans yields about 700 kg per acre. At a market price of roughly KES 75/kg, that is around KES 52,500 per acre in gross revenue, before input and labour costs.
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