Growing Napier Grass in Nyamira
Soil suitability analysis based on Nyamira's nutrient profile
Yes — Nyamira is well suited to Napier Grass. Nyamira's soil (pH 5.58, slightly acidic) gives Napier Grass a suitability score of 79/100. Match fertilizer to Nyamira's nitrogen and phosphorus levels for the best result.
Nyamira County is well suited to Napier Grass, scoring 79/100 on ShambaIQ's soil-match model. Local soils average pH 5.58 — slightly acidic to near-neutral and inside the 5–8 band Napier Grass prefers, so no lime is usually required. The main gap is potassium — measured at N 0.84 g/kg, P 11.6 mg/kg, K 148 mg/kg against this crop's medium/low/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay loam soils suit Napier Grass, which favours loam. At current prices (about KES 5/kg) and a typical 30,000 kg/acre yield, a well-managed Napier Grass crop here can gross roughly KES 150,000 per acre.
Soil & climate match
| Factor | Nyamira soil | Napier Grass needs | Status |
|---|---|---|---|
| pH | 5.58 | 5–8 | OK |
| Nitrogen | 0.84 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 11.6 mg/kg | min 6 mg/kg | OK |
| Potassium | 148 mg/kg | min 150 mg/kg | Low |
| Rainfall | 1,600 mm | 800–2,000 mm | OK |
| Altitude | 1,700 m | 0–2,500 m | OK |
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag