Growing Chia in Turkana

Soil suitability analysis based on Turkana's nutrient profile

Turkana County is a challenging environment for Chia (soil-match score 11/100) and will need significant amendment before planting. Local soils average pH 7.95 — alkaline and inside the 6–8 band Chia prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.41 g/kg, P 38.5 mg/kg, K 417 mg/kg against this crop's low/medium/low demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Chia, which favours sandy loam. At 400 m, the county sits below Chia's preferred altitude range (1000–2200 m), which limits yield potential due to heat stress. Chia's full potential is about 400 kg/acre (~KES 60,000/acre at KES 150/kg), but at Turkana's 11/100 suitability a realistic target here is closer to 55 kg/acre (~KES 8,250/acre) unless the constraints above are addressed.