Growing Kale (Sukuma Wiki) in Taita Taveta

Soil suitability analysis based on Taita Taveta's nutrient profile

Taita Taveta County is a challenging environment for Kale (Sukuma Wiki) (soil-match score 40/100) and will need significant amendment before planting. Local soils average pH 6.64 — neutral and inside the 5–7 band Kale (Sukuma Wiki) prefers, so no lime is usually required. The main gap is nitrogen and potassium — measured at N 0.97 g/kg, P 12.9 mg/kg, K 104 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly loam soils suit Kale (Sukuma Wiki), which favours clay loam. Taita Taveta receives approximately 500 mm/year — well below Kale (Sukuma Wiki)'s minimum of 700 mm — so supplemental irrigation would be essential for this crop. Kale (Sukuma Wiki)'s full potential is about 12,000 kg/acre (~KES 240,000/acre at KES 20/kg), but at Taita Taveta's 40/100 suitability a realistic target here is closer to 6,000 kg/acre (~KES 120,000/acre) unless the constraints above are addressed.