Growing Napier Grass in Trans Nzoia
Soil suitability analysis based on Trans Nzoia's nutrient profile
Yes — Trans Nzoia is well suited to Napier Grass. Trans Nzoia's soil (pH 5.93, slightly acidic) gives Napier Grass a suitability score of 88/100. Match fertilizer to Trans Nzoia's nitrogen and phosphorus levels for the best result.
Trans Nzoia County is well suited to Napier Grass, scoring 88/100 on ShambaIQ's soil-match model. Local soils average pH 5.93 — slightly acidic to near-neutral and inside the 5–8 band Napier Grass prefers, so no lime is usually required. Nitrogen (1.68 g/kg), phosphorus (27.3 mg/kg) and potassium (213 mg/kg) all meet Napier Grass's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Napier Grass, which favours loam. On ShambaIQ's soil-match model, Napier Grass is the #31 soil match of the 106 crops we assess for Trans Nzoia County. 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 | Trans Nzoia soil | Napier Grass needs | Status |
|---|---|---|---|
| pH | 5.93 | 5–8 | OK |
| Nitrogen | 1.68 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 27.3 mg/kg | min 6 mg/kg | OK |
| Potassium | 213 mg/kg | min 150 mg/kg | OK |
| Rainfall | 1,200 mm | 800–2,000 mm | OK |
| Altitude | 1,900 m | 0–2,500 m | OK |
Top dressing guide
Trans Nzoia's nitrogen (1.68 g/kg) already meets Napier Grass's 0.8 g/kg requirement, so this is a maintenance rate.
Seed varieties for Trans Nzoia
2 napier grass varieties are rated for Trans Nzoia's altitude (1,900 m) and rainfall (1,200 mm):
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag