Growing Carrot in Mandera

Soil suitability analysis based on Mandera's nutrient profile

Mandera County is a challenging environment for Carrot (soil-match score 0/100) and will need significant amendment before planting. At an average pH of 8.38 the soil sits above Carrot's preferred 5.5–7 range, which can limit uptake of phosphorus and micronutrients. Nitrogen (0.53 g/kg), phosphorus (38.3 mg/kg) and potassium (420 mg/kg) all meet Carrot's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy soils suit Carrot, which favours sandy loam. Mandera receives approximately 180 mm/year — well below Carrot's minimum of 600 mm — so supplemental irrigation would be essential for this crop. Carrot's full potential is about 10,000 kg/acre (~KES 380,000/acre at KES 38/kg), but at Mandera's 0/100 suitability a realistic target here is closer to 0 kg/acre (~KES 0/acre) unless the constraints above are addressed.