Growing Kale (Sukuma Wiki) in Makueni

Soil suitability analysis based on Makueni's nutrient profile

Kale (Sukuma Wiki) can be grown in Makueni County, but the soil scores 45/100 and needs targeted management to reach full potential. At an average pH of 7.5 the soil sits above Kale (Sukuma Wiki)'s preferred 5–7 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.86 g/kg, P 29.6 mg/kg, K 351 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. Kale (Sukuma Wiki) prefers clay loam soils, while Makueni is largely sandy loam, so drainage and organic-matter management matter more here. Kale (Sukuma Wiki)'s full potential is about 12,000 kg/acre (~KES 240,000/acre at KES 20/kg), but at Makueni's 45/100 suitability a realistic target here is closer to 6,750 kg/acre (~KES 135,000/acre) unless the constraints above are addressed.