Growing Taro (Nduma) in Kirinyaga

Soil suitability analysis based on Kirinyaga's nutrient profile

Kirinyaga County is well suited to Taro (Nduma), scoring 84/100 on ShambaIQ's soil-match model. At an average pH of 5.31 the soil is moderately acidic, below Taro (Nduma)'s preferred 5.5–6.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.36 g/kg), phosphorus (12.5 mg/kg) and potassium (177 mg/kg) all meet Taro (Nduma)'s requirements, so a maintenance fertilizer programme is enough. Taro (Nduma) prefers loam soils, while Kirinyaga is largely clay, so drainage and organic-matter management matter more here. At current prices (about KES 90/kg) and a typical 8,000 kg/acre yield, a well-managed Taro (Nduma) crop here can gross roughly KES 720,000 per acre.