Growing Napier Grass in Murang'a
Soil suitability analysis based on Murang'a's nutrient profile
Murang'a County is a solid choice for Napier Grass, with a soil-match score of 69/100. Local soils average pH 5.03 — moderately acidic and inside the 5–8 band Napier Grass prefers, so no lime is usually required. Nitrogen (1.2 g/kg), phosphorus (12.2 mg/kg) and potassium (168 mg/kg) all meet Napier Grass's requirements, so a maintenance fertilizer programme is enough. Napier Grass prefers loam soils, while Murang'a is largely clay, so drainage and organic-matter management matter more here. At current prices (about KES 5/kg) and a typical 15,000 kg/acre yield, a well-managed Napier Grass crop here can gross roughly KES 75,000 per acre.
Soil match analysis
| Nutrient | Murang'a soil | Napier Grass needs | Status |
|---|---|---|---|
| pH | 5.03 | 5–8 | OK |
| Nitrogen | 1.2 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 12.2 mg/kg | min 6 mg/kg | OK |
| Potassium | 168 mg/kg | min 150 mg/kg | OK |
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag