Growing Yams in Nyamira
Soil suitability analysis based on Nyamira's nutrient profile
Yes — Nyamira is well suited to Yams. Nyamira's soil (pH 5.58, slightly acidic) gives Yams a suitability score of 86/100. Match fertilizer to Nyamira's nitrogen and phosphorus levels for the best result.
Nyamira County is well suited to Yams, scoring 86/100 on ShambaIQ's soil-match model. Local soils average pH 5.58 — slightly acidic to near-neutral and inside the 5.5–6.5 band Yams prefers, so no lime is usually required. The main gap is phosphorus and potassium — measured at N 0.84 g/kg, P 11.6 mg/kg, K 148 mg/kg against this crop's medium/medium/high demand — so the fertilizer plan below prioritises closing those deficits. Yams prefers sandy loam soils, while Nyamira is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Yams is the #8 soil match of the 106 crops we assess for Nyamira County. At current prices (about KES 80/kg) and a typical 7,000 kg/acre yield, a well-managed Yams crop here can gross roughly KES 560,000 per acre.
Soil & climate match
| Factor | Nyamira soil | Yams needs | Status |
|---|---|---|---|
| pH | 5.58 | 5.5–6.5 | OK |
| Nitrogen | 0.84 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 11.6 mg/kg | min 12 mg/kg | Low |
| Potassium | 148 mg/kg | min 200 mg/kg | Low |
| Rainfall | 1,600 mm | 1,200–1,800 mm | OK |
| Altitude | 1,700 m | 0–1,800 m | OK |
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag