Growing Onion in Uasin Gishu
Soil suitability analysis based on Uasin Gishu's nutrient profile
Yes — Uasin Gishu is well suited to Onion. Uasin Gishu's soil (pH 6.39, slightly acidic) gives Onion a suitability score of 80/100. Match fertilizer to Uasin Gishu's nitrogen and phosphorus levels for the best result.
Uasin Gishu County is well suited to Onion, scoring 80/100 on ShambaIQ's soil-match model. Local soils average pH 6.39 — slightly acidic to near-neutral and inside the 6–7 band Onion prefers, so no lime is usually required. Nitrogen (1.56 g/kg), phosphorus (25.3 mg/kg) and potassium (227 mg/kg) all meet Onion's requirements, so a maintenance fertilizer programme is enough. Onion prefers sandy loam soils, while Uasin Gishu is largely clay loam, so drainage and organic-matter management matter more here. At current prices (about KES 70/kg) and a typical 6,000 kg/acre yield, a well-managed Onion crop here can gross roughly KES 420,000 per acre.
Soil & climate match
| Factor | Uasin Gishu soil | Onion needs | Status |
|---|---|---|---|
| pH | 6.39 | 6–7 | OK |
| Nitrogen | 1.56 g/kg | min 1.2 g/kg | OK |
| Phosphorus | 25.3 mg/kg | min 20 mg/kg | OK |
| Potassium | 227 mg/kg | min 150 mg/kg | OK |
| Rainfall | 1,100 mm | 500–1,000 mm | High |
| Altitude | 2,100 m | 0–2,000 m | High |
Planting calendar
Long Rains
Short Rains
Dry Season
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag