Growing Quinoa in Taita Taveta

Soil suitability analysis based on Taita Taveta's nutrient profile

Taita Taveta County is a challenging environment for Quinoa (soil-match score 18/100) and will need significant amendment before planting. Local soils average pH 6.64 — neutral and inside the 6–8.5 band Quinoa prefers, so no lime is usually required. The main gap is potassium — measured at N 0.97 g/kg, P 12.9 mg/kg, K 104 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly loam soils suit Quinoa, which favours loam. At 700 m, the county sits below Quinoa's preferred altitude range (1500–3000 m), which limits yield potential due to heat stress. Quinoa's full potential is about 700 kg/acre (~KES 105,000/acre at KES 150/kg), but at Taita Taveta's 18/100 suitability a realistic target here is closer to 158 kg/acre (~KES 23,700/acre) unless the constraints above are addressed.