Growing African Nightshade in Vihiga
Soil suitability analysis based on Vihiga's nutrient profile
Yes, with the right inputs — Vihiga is moderately suited to African Nightshade. Vihiga's soil (pH 5.62, slightly acidic) gives African Nightshade a suitability score of 70/100. Match fertilizer to Vihiga's nitrogen and phosphorus levels for the best result.
Vihiga County is a solid choice for African Nightshade, with a soil-match score of 70/100. Local soils average pH 5.62 — slightly acidic to near-neutral and inside the 5.5–7.5 band African Nightshade prefers, so no lime is usually required. The main gap is nitrogen — measured at N 1.02 g/kg, P 14.8 mg/kg, K 164 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly clay loam soils suit African Nightshade, which favours loam. On ShambaIQ's soil-match model, African Nightshade is the #33 soil match of the 106 crops we assess for Vihiga County. African Nightshade's full potential is about 5,000 kg/acre (~KES 250,000/acre at KES 50/kg), but at Vihiga's 70/100 suitability a realistic target here is closer to 4,375 kg/acre (~KES 218,750/acre) unless the constraints above are addressed.
Soil & climate match
| Factor | Vihiga soil | African Nightshade needs | Status |
|---|---|---|---|
| pH | 5.62 | 5.5–7.5 | OK |
| Nitrogen | 1.02 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 14.8 mg/kg | min 12 mg/kg | OK |
| Potassium | 164 mg/kg | min 150 mg/kg | OK |
| Rainfall | 1,800 mm | 800–1,500 mm | High |
| Altitude | 1,700 m | 1,000–2,200 m | OK |
Planting calendar
Long Rains
Short Rains
Dry Season
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag