Growing Oilseed Rape (Canola) in Wajir

Soil suitability analysis based on Wajir's nutrient profile

Wajir County is a challenging environment for Oilseed Rape (Canola) (soil-match score 0/100) and will need significant amendment before planting. At an average pH of 8.4 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 0.52 g/kg, P 39.3 mg/kg, K 396 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 Wajir is largely sandy, so drainage and organic-matter management matter more here. Wajir receives approximately 200 mm/year — well below Oilseed Rape (Canola)'s minimum of 400 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Oilseed Rape (Canola) is the #103 soil match of the 106 crops we assess for Wajir County. Oilseed Rape (Canola)'s full potential is about 1,000 kg/acre (~KES 60,000/acre at KES 60/kg), but at Wajir's 0/100 suitability a realistic target here is closer to 0 kg/acre (~KES 0/acre) unless the constraints above are addressed.

Better matched to Wajir's soil: Sisal, Aloe Vera, and Green Grams — each scores higher on the same soil.