Growing Turmeric in Kisii

Soil suitability analysis based on Kisii's nutrient profile

Turmeric can be grown in Kisii County, but the soil scores 49/100 and needs targeted management to reach full potential. At an average pH of 5.21 the soil is moderately acidic, below Turmeric's preferred 5.5–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen, phosphorus, and potassium — measured at N 1.09 g/kg, P 13.1 mg/kg, K 151 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly clay loam soils suit Turmeric, which favours loam. Turmeric's full potential is about 6,000 kg/acre (~KES 480,000/acre at KES 80/kg), but at Kisii's 49/100 suitability a realistic target here is closer to 3,675 kg/acre (~KES 294,000/acre) unless the constraints above are addressed.