Growing Barley in Siaya

Soil suitability analysis based on Siaya's nutrient profile

Siaya County is a challenging environment for Barley (soil-match score 20/100) and will need significant amendment before planting. At an average pH of 5.33 the soil is moderately acidic, below Barley'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 1.2 g/kg, P 12.1 mg/kg, K 134 mg/kg against this crop's medium/high/medium demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly clay loam soils suit Barley, which favours loam. At 1200 m, the county sits below Barley's preferred altitude range (2000–3000 m), which limits yield potential due to heat stress. On ShambaIQ's soil-match model, Barley is the #104 soil match of the 106 crops we assess for Siaya County. Barley's full potential is about 1,600 kg/acre (~KES 67,200/acre at KES 42/kg), but at Siaya's 20/100 suitability a realistic target here is closer to 400 kg/acre (~KES 16,800/acre) unless the constraints above are addressed.

Better matched to Siaya's soil: Macadamia, Pineapple, and Avocado — each scores higher on the same soil.