Growing Oilseed Rape (Canola) in Kitui

Soil suitability analysis based on Kitui's nutrient profile

Kitui County is a challenging environment for Oilseed Rape (Canola) (soil-match score 29/100) and will need significant amendment before planting. Local soils average pH 7.03 — neutral and inside the 5.8–7.5 band Oilseed Rape (Canola) prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.74 g/kg, P 30.5 mg/kg, K 339 mg/kg against this crop's high/high/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Oilseed Rape (Canola), which favours loam. At 900 m, the county sits below Oilseed Rape (Canola)'s preferred altitude range (1500–2800 m), which limits yield potential due to heat stress. Oilseed Rape (Canola)'s full potential is about 1,000 kg/acre (~KES 60,000/acre at KES 60/kg), but at Kitui's 29/100 suitability a realistic target here is closer to 363 kg/acre (~KES 21,780/acre) unless the constraints above are addressed.