Growing Sweet Orange in Busia

Soil suitability analysis based on Busia's nutrient profile

Sweet Orange can be grown in Busia County, but the soil scores 56/100 and needs targeted management to reach full potential. At an average pH of 5.29 the soil is moderately acidic, below Sweet Orange's preferred 6–7.5 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 0.91 g/kg, P 16.6 mg/kg, K 175 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 Sweet Orange, which favours loam. Sweet Orange's full potential is about 12,000 kg/acre (~KES 600,000/acre at KES 50/kg), but at Busia's 56/100 suitability a realistic target here is closer to 8,400 kg/acre (~KES 420,000/acre) unless the constraints above are addressed.