Growing Broccoli in Kisumu

Soil suitability analysis based on Kisumu's nutrient profile

Kisumu County is a challenging environment for Broccoli (soil-match score 25/100) and will need significant amendment before planting. At an average pH of 5.54 the soil is slightly acidic to near-neutral, below Broccoli'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 12.5 mg/kg, K 166 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. Broccoli prefers loam soils, while Kisumu is largely clay, so drainage and organic-matter management matter more here. At 1150 m, the county sits below Broccoli's preferred altitude range (1800–2800 m), which limits yield potential due to heat stress. At current prices (about KES 90/kg) and a typical 5,000 kg/acre yield, a well-managed Broccoli crop here can gross roughly KES 450,000 per acre.