Growing African Nightshade in Laikipia

Soil suitability analysis based on Laikipia's nutrient profile

Laikipia County is a challenging environment for African Nightshade (soil-match score 38/100) and will need significant amendment before planting. At an average pH of 4.99 the soil is strongly acidic, below African Nightshade's preferred 5.5–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.42 g/kg), phosphorus (16.6 mg/kg) and potassium (215 mg/kg) all meet African Nightshade's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit African Nightshade, which favours loam. On ShambaIQ's soil-match model, African Nightshade is the #81 soil match of the 106 crops we assess for Laikipia County. African Nightshade's full potential is about 5,000 kg/acre (~KES 250,000/acre at KES 50/kg), but at Laikipia's 38/100 suitability a realistic target here is closer to 2,375 kg/acre (~KES 118,750/acre) unless the constraints above are addressed.

Better matched to Laikipia's soil: Sweet Potato, Finger Millet, and Groundnuts — each scores higher on the same soil.