Growing Grapes in Nyamira

Soil suitability analysis based on Nyamira's nutrient profile

Grapes can be grown in Nyamira County, but the soil scores 45/100 and needs targeted management to reach full potential. At an average pH of 5.58 the soil is slightly acidic to near-neutral, below Grapes's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is phosphorus and potassium — measured at N 0.84 g/kg, P 11.6 mg/kg, K 148 mg/kg against this crop's medium/high/high demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly clay loam soils suit Grapes, which favours loam. Grapes's full potential is about 8,000 kg/acre (~KES 1,200,000/acre at KES 150/kg), but at Nyamira's 45/100 suitability a realistic target here is closer to 4,500 kg/acre (~KES 675,000/acre) unless the constraints above are addressed.