Growing Lucerne in Mombasa
Soil suitability analysis based on Mombasa's nutrient profile
Mombasa County is a solid choice for Lucerne, with a soil-match score of 62/100. At an average pH of 6.24 the soil is slightly acidic to near-neutral, below Lucerne's preferred 6.5–8 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is phosphorus and potassium — measured at N 0.95 g/kg, P 8.4 mg/kg, K 136 mg/kg against this crop's low/medium/high demand — so the fertilizer plan below prioritises closing those deficits. Lucerne prefers clay loam soils, while Mombasa is largely sandy, so drainage and organic-matter management matter more here. At current prices (about KES 28/kg) and a typical 6,500 kg/acre yield, a well-managed Lucerne crop here can gross roughly KES 182,000 per acre.
Soil match analysis
| Nutrient | Mombasa soil | Lucerne needs | Status |
|---|---|---|---|
| pH | 6.24 | 6.5–8 | Adjust |
| Nitrogen | 0.95 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 8.4 mg/kg | min 12 mg/kg | Low |
| Potassium | 136 mg/kg | min 200 mg/kg | Low |
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag