Growing Oilseed Rape (Canola) in Turkana
Soil suitability analysis based on Turkana's nutrient profile
Generally not ideal — Turkana is poorly suited to Oilseed Rape (Canola). Turkana's soil (pH 7.95, alkaline) gives Oilseed Rape (Canola) a suitability score of 2/100. Match fertilizer to Turkana's nitrogen and phosphorus levels for the best result.
Turkana County is a challenging environment for Oilseed Rape (Canola) (soil-match score 2/100) and will need significant amendment before planting. At an average pH of 7.95 the soil sits above Oilseed Rape (Canola)'s preferred 5.8–7.5 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 high/high/medium demand — so the fertilizer plan below prioritises closing that deficit. Oilseed Rape (Canola) prefers loam soils, while Turkana is largely sandy, so drainage and organic-matter management matter more here. At 400 m, the county sits below Oilseed Rape (Canola)'s preferred altitude range (1500–2800 m), which limits yield potential due to heat stress. On ShambaIQ's soil-match model, Oilseed Rape (Canola) is the #86 soil match of the 106 crops we assess for Turkana County. Oilseed Rape (Canola)'s full potential is about 1,000 kg/acre (~KES 60,000/acre at KES 60/kg), but at Turkana's 2/100 suitability a realistic target here is closer to 25 kg/acre (~KES 1,500/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 | Oilseed Rape (Canola) needs | Status |
|---|---|---|---|
| pH | 7.95 | 5.8–7.5 | Adjust |
| Nitrogen | 0.41 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 38.5 mg/kg | min 20 mg/kg | OK |
| Potassium | 417 mg/kg | min 150 mg/kg | OK |
| Rainfall | 300 mm | 400–900 mm | Low |
| Altitude | 400 m | 1,500–2,800 m | Low |
Planting calendar for Turkana
Long Rains· March–May
Short Rains· October–DecemberMain season here
Top dressing guide
Turkana's nitrogen (0.41 g/kg) is 34% of the 1.2 g/kg Oilseed Rape (Canola) needs, so the standard 0.5 bags/acre is raised to 0.75. Split it across two applications to limit leaching.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag