Growing Sunflower in Bomet

Soil suitability analysis based on Bomet's nutrient profile

Sunflower can be grown in Bomet County, but the soil scores 48/100 and needs targeted management to reach full potential. Local soils average pH 6.02 — slightly acidic to near-neutral and inside the 6–7.5 band Sunflower prefers, so no lime is usually required. Nitrogen (1.38 g/kg), phosphorus (23.6 mg/kg) and potassium (237 mg/kg) all meet Sunflower's requirements, so a maintenance fertilizer programme is enough. Sunflower prefers sandy soils, while Bomet is largely clay loam, so drainage and organic-matter management matter more here. Sunflower's full potential is about 750 kg/acre (~KES 36,000/acre at KES 48/kg), but at Bomet's 48/100 suitability a realistic target here is closer to 450 kg/acre (~KES 21,600/acre) unless the constraints above are addressed.

48Suitability score

Soil & climate match

FactorBomet soilSunflower needsStatus
pH6.0267.5OK
Nitrogen1.38 g/kgmin 0.8 g/kgOK
Phosphorus23.6 mg/kgmin 12 mg/kgOK
Potassium237 mg/kgmin 150 mg/kgOK
Rainfall1,500 mm400–800 mmHigh
Altitude1,900 m0–2,000 mOK

Planting calendar

Long Rains

Month 1
Sowing & Basal Fertilizer
Month 2
Top Dressing & Weed Control
Month 3
Head Development & Bird Protection

Short Rains

Month 1
Sowing & Basal Fertilizer
Month 2
Top Dressing & 1st Weeding
Month 3
Harvesting & Drying

Dry Season

Month 1
Harvesting & Threshing
Month 2
Land Resting
Month 3
Seed Selection & Storage

Top dressing guide

Product
CAN
Timing
Week 4–5 after emergence
Instruction
Apply at vegetative stage before flower bud initiation.
Bags per Acre
0.5

Recommended seed varieties

Kenya FedhaMedium/Dryland
Kenya Seed Company · 90-110 days · 8-12 bags/acre
High oil content (40-45%); resistant to downy mildew.
H8998Medium
Pannar Seeds · 85-100 days · 10-14 bags/acre
Hybrid; very high oil yield; uniform heads.

Economics

Market priceKES 48/kg
Expected yield in Bomet450 kg/acre
Estimated revenueKES 21,600/acre
Adjusted for Bomet's 48/100 suitability. Under ideal conditions Sunflower can reach 750 kg/acre (~KES 36,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy

Fertilizer prices

DAP
KES 3,500(6,500)
CAN
KES 2,875(4,500)
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