Growing Ginger in Makueni

Soil suitability analysis based on Makueni's nutrient profile

Makueni County is a challenging environment for Ginger (soil-match score 11/100) and will need significant amendment before planting. At an average pH of 7.5 the soil sits above Ginger's preferred 5.5–7 range, which can limit uptake of phosphorus and micronutrients. Nitrogen (0.86 g/kg), phosphorus (29.6 mg/kg) and potassium (351 mg/kg) all meet Ginger's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Ginger, which favours sandy loam. Makueni receives approximately 600 mm/year — well below Ginger's minimum of 1500 mm — so supplemental irrigation would be essential for this crop. At current prices (about KES 200/kg) and a typical 6,000 kg/acre yield, a well-managed Ginger crop here can gross roughly KES 1,200,000 per acre.