Growing Oilseed Rape (Canola) in Makueni

Soil suitability analysis based on Makueni's nutrient profile

Makueni County is a challenging environment for Oilseed Rape (Canola) (soil-match score 33/100) and will need significant amendment before planting. Local soils average pH 7.5 — alkaline 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 0.86 g/kg, P 29.6 mg/kg, K 351 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 1000 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 Makueni's 33/100 suitability a realistic target here is closer to 413 kg/acre (~KES 24,780/acre) unless the constraints above are addressed.