Growing Radish in Marsabit

Soil suitability analysis based on Marsabit's nutrient profile

Marsabit County is a challenging environment for Radish (soil-match score 21/100) and will need significant amendment before planting. At an average pH of 8.22 the soil sits above Radish's preferred 6–7.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.52 g/kg, P 37.3 mg/kg, K 420 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Radish, which favours sandy loam. Marsabit receives approximately 300 mm/year — well below Radish's minimum of 500 mm — so supplemental irrigation would be essential for this crop. Radish's full potential is about 8,000 kg/acre (~KES 320,000/acre at KES 40/kg), but at Marsabit's 21/100 suitability a realistic target here is closer to 2,100 kg/acre (~KES 84,000/acre) unless the constraints above are addressed.