Growing Sunflower in Turkana
Soil suitability analysis based on Turkana's nutrient profile
Generally not ideal — Turkana is poorly suited to Sunflower. Turkana's soil (pH 7.95, alkaline) gives Sunflower a suitability score of 34/100. Match fertilizer to Turkana's nitrogen and phosphorus levels for the best result.
Turkana County is a challenging environment for Sunflower (soil-match score 34/100) and will need significant amendment before planting. At an average pH of 7.95 the soil sits above Sunflower's preferred 6–7.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.41 g/kg, P 38.5 mg/kg, K 417 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Sunflower, which favours sandy. On ShambaIQ's soil-match model, Sunflower is the #12 soil match of the 106 crops we assess for Turkana County. Sunflower's full potential is about 750 kg/acre (~KES 36,000/acre at KES 48/kg), but at Turkana's 34/100 suitability a realistic target here is closer to 319 kg/acre (~KES 15,312/acre) unless the constraints above are addressed.
Better matched to Turkana's soil: Sisal, Aloe Vera, and Green Grams — each scores higher on the same soil.
Soil & climate match
| Factor | Turkana soil | Sunflower needs | Status |
|---|---|---|---|
| pH | 7.95 | 6–7.5 | Adjust |
| Nitrogen | 0.41 g/kg | min 0.8 g/kg | Low |
| Phosphorus | 38.5 mg/kg | min 12 mg/kg | OK |
| Potassium | 417 mg/kg | min 150 mg/kg | OK |
| Rainfall | 300 mm | 400–800 mm | Low |
| Altitude | 400 m | 0–2,000 m | OK |
Planting calendar for Turkana
Long Rains· March–May
Short Rains· October–DecemberMain season here
Dry Season· January–March
Top dressing guide
Turkana's nitrogen (0.41 g/kg) is 51% of the 0.8 g/kg Sunflower needs, so the standard 0.5 bags/acre is raised to 0.75. Split it across two applications to limit leaching.
Seed varieties for Turkana
Varieties suited to Turkana's 400 m altitude and 300 mm annual rainfall — 1 of 2 sunflower varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag