Growing Napier Grass in Mombasa
Soil suitability analysis based on Mombasa's nutrient profile
Yes — Mombasa is well suited to Napier Grass. Mombasa's soil (pH 6.24, slightly acidic) gives Napier Grass a suitability score of 91/100. Match fertilizer to Mombasa's nitrogen and phosphorus levels for the best result.
Mombasa County is well suited to Napier Grass, scoring 91/100 on ShambaIQ's soil-match model. Local soils average pH 6.24 — 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 0.95 g/kg, P 8.4 mg/kg, K 136 mg/kg against this crop's medium/low/medium demand — so the fertilizer plan below prioritises closing that deficit. Napier Grass prefers loam soils, while Mombasa is largely sandy, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Napier Grass is the #3 soil match of the 106 crops we assess for Mombasa 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 | Mombasa soil | Napier Grass needs | Status |
|---|---|---|---|
| pH | 6.24 | 5–8 | OK |
| Nitrogen | 0.95 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 8.4 mg/kg | min 6 mg/kg | OK |
| Potassium | 136 mg/kg | min 150 mg/kg | Low |
| Rainfall | 1,000 mm | 800–2,000 mm | OK |
| Altitude | 50 m | 0–2,500 m | OK |
Top dressing guide
Mombasa's nitrogen (0.95 g/kg) already meets Napier Grass's 0.8 g/kg requirement, so this is a maintenance rate.
Recommended seed varieties
All 2 listed napier grass varieties shown — none are specifically rated for Mombasa's conditions. Confirm with your agrovet.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag