Growing Sunflower in Uasin Gishu

Soil suitability analysis based on Uasin Gishu's nutrient profile

Quick answer

Yes, with the right inputs — Uasin Gishu is moderately suited to Sunflower. Uasin Gishu's soil (pH 6.39, slightly acidic) gives Sunflower a suitability score of 67/100. Match fertilizer to Uasin Gishu's nitrogen and phosphorus levels for the best result.

Uasin Gishu County is a solid choice for Sunflower, with a soil-match score of 67/100. Local soils average pH 6.39 — slightly acidic to near-neutral and inside the 6–7.5 band Sunflower prefers, so no lime is usually required. Nitrogen (1.56 g/kg), phosphorus (25.3 mg/kg) and potassium (227 mg/kg) all meet Sunflower's requirements, so a maintenance fertilizer programme is enough. Sunflower prefers sandy soils, while Uasin Gishu is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Sunflower is the #71 soil match of the 106 crops we assess for Uasin Gishu County. Sunflower's full potential is about 750 kg/acre (~KES 36,000/acre at KES 48/kg), but at Uasin Gishu's 67/100 suitability a realistic target here is closer to 628 kg/acre (~KES 30,144/acre) unless the constraints above are addressed.

67Suitability score

Soil & climate match

FactorUasin Gishu soilSunflower needsStatus
pH6.3967.5OK
Nitrogen1.56 g/kgmin 0.8 g/kgOK
Phosphorus25.3 mg/kgmin 12 mg/kgOK
Potassium227 mg/kgmin 150 mg/kgOK
Rainfall1,100 mm400–800 mmHigh
Altitude2,100 m0–2,000 mHigh

Planting calendar for Uasin Gishu

Long Rains· AprilJuneMain season here

April
Sowing & Basal Fertilizer
May
Top Dressing & Weed Control
June
Head Development & Bird Protection

Short Rains· OctoberDecember

October
Sowing & Basal Fertilizer
November
Top Dressing & 1st Weeding
December
Harvesting & Drying

Dry Season· FebruaryApril

February
Harvesting & Threshing
March
Land Resting
April
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 in Uasin Gishu
0.5

Uasin Gishu's nitrogen (1.56 g/kg) already meets Sunflower's 0.8 g/kg requirement, so this is a maintenance rate.

Recommended seed varieties

No variety in our list is specifically rated for Uasin Gishu's 2,100 m altitude and 1,100 mm rainfall, so all 2 are shown. Confirm with your agrovet before buying.

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 Uasin Gishu628 kg/acre
Estimated revenueKES 30,144/acre
Adjusted for Uasin Gishu's 67/100 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(5,700)
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