Growing African Nightshade in Kitui

Soil suitability analysis based on Kitui's nutrient profile

Kitui County is a challenging environment for African Nightshade (soil-match score 25/100) and will need significant amendment before planting. Local soils average pH 7.03 — 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 0.74 g/kg, P 30.5 mg/kg, K 339 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit African Nightshade, which favours loam. Kitui receives approximately 500 mm/year — well below African Nightshade's minimum of 800 mm — so supplemental irrigation would be essential for this crop. At current prices (about KES 50/kg) and a typical 3,500 kg/acre yield, a well-managed African Nightshade crop here can gross roughly KES 175,000 per acre.