Growing Watermelon in Vihiga
Soil suitability analysis based on Vihiga's nutrient profile
Generally not ideal — Vihiga is poorly suited to Watermelon. Vihiga's soil (pH 5.62, slightly acidic) gives Watermelon a suitability score of 29/100. Match fertilizer to Vihiga's nitrogen and phosphorus levels for the best result.
Vihiga County is a challenging environment for Watermelon (soil-match score 29/100) and will need significant amendment before planting. At an average pH of 5.62 the soil is slightly acidic to near-neutral, below Watermelon's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.02 g/kg), phosphorus (14.8 mg/kg) and potassium (164 mg/kg) all meet Watermelon's requirements, so a maintenance fertilizer programme is enough. Watermelon prefers sandy soils, while Vihiga is largely clay loam, so drainage and organic-matter management matter more here. Watermelon's full potential is about 15,000 kg/acre (~KES 150,000/acre at KES 10/kg), but at Vihiga's 29/100 suitability a realistic target here is closer to 5,438 kg/acre (~KES 54,380/acre) unless the constraints above are addressed.
Soil & climate match
| Factor | Vihiga soil | Watermelon needs | Status |
|---|---|---|---|
| pH | 5.62 | 6–7.5 | Adjust |
| Nitrogen | 1.02 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 14.8 mg/kg | min 12 mg/kg | OK |
| Potassium | 164 mg/kg | min 150 mg/kg | OK |
| Rainfall | 1,800 mm | 300–700 mm | High |
| Altitude | 1,700 m | 0–1,500 m | High |
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag