Growing Snow Peas in Mandera

Soil suitability analysis based on Mandera's nutrient profile

Mandera County is a challenging environment for Snow Peas (soil-match score 0/100) and will need significant amendment before planting. At an average pH of 8.38 the soil sits above Snow Peas's preferred 5.5–7.5 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 Snow Peas's requirements, so a maintenance fertilizer programme is enough. Snow Peas prefers loam soils, while Mandera is largely sandy, so drainage and organic-matter management matter more here. Mandera receives approximately 180 mm/year — well below Snow Peas's minimum of 700 mm — so supplemental irrigation would be essential for this crop. Snow Peas's full potential is about 1,800 kg/acre (~KES 333,000/acre at KES 185/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.