Growing Turmeric in Makueni

Soil suitability analysis based on Makueni's nutrient profile

Makueni County is a challenging environment for Turmeric (soil-match score 26/100) and will need significant amendment before planting. Local soils average pH 7.5 — alkaline and inside the 5.5–7.5 band Turmeric prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.86 g/kg, P 29.6 mg/kg, K 351 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Turmeric, which favours loam. Makueni receives approximately 600 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 Makueni's 26/100 suitability a realistic target here is closer to 1,950 kg/acre (~KES 156,000/acre) unless the constraints above are addressed.