Growing Oilseed Rape (Canola) in Nyeri
Soil suitability analysis based on Nyeri's nutrient profile
Oilseed Rape (Canola) can be grown in Nyeri County, but the soil scores 53/100 and needs targeted management to reach full potential. At an average pH of 5.23 the soil is moderately acidic, below Oilseed Rape (Canola)'s preferred 5.8–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen and phosphorus — measured at N 1.09 g/kg, P 15.5 mg/kg, K 192 mg/kg against this crop's high/high/medium demand — so the fertilizer plan below prioritises closing those deficits. Oilseed Rape (Canola) prefers loam soils, while Nyeri is largely clay, so drainage and organic-matter management matter more here. Oilseed Rape (Canola)'s full potential is about 1,000 kg/acre (~KES 60,000/acre at KES 60/kg), but at Nyeri's 53/100 suitability a realistic target here is closer to 663 kg/acre (~KES 39,780/acre) unless the constraints above are addressed.
Soil & climate match
| Factor | Nyeri soil | Oilseed Rape (Canola) needs | Status |
|---|---|---|---|
| pH | 5.23 | 5.8–7.5 | Adjust |
| Nitrogen | 1.09 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 15.5 mg/kg | min 20 mg/kg | Low |
| Potassium | 192 mg/kg | min 150 mg/kg | OK |
| Rainfall | 1,200 mm | 400–900 mm | High |
| Altitude | 1,700 m | 1,500–2,800 m | OK |
Planting calendar
Long Rains
Short Rains
Top dressing guide
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag