Growing Turmeric in Kilifi

Soil suitability analysis based on Kilifi's nutrient profile

Kilifi County is a challenging environment for Turmeric (soil-match score 36/100) and will need significant amendment before planting. Local soils average pH 6.24 — slightly acidic to near-neutral and inside the 5.5–7.5 band Turmeric prefers, so no lime is usually required. The main gap is nitrogen, phosphorus, and potassium — measured at N 0.8 g/kg, P 11 mg/kg, K 109 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly sandy loam soils suit Turmeric, which favours loam. Kilifi receives approximately 700 mm/year — well below Turmeric's minimum of 1000 mm — so supplemental irrigation would be essential for this crop. Turmeric's full potential is about 6,000 kg/acre (~KES 480,000/acre at KES 80/kg), but at Kilifi's 36/100 suitability a realistic target here is closer to 2,700 kg/acre (~KES 216,000/acre) unless the constraints above are addressed.