Growing Vine Spinach (Nderema) in Wajir

Soil suitability analysis based on Wajir's nutrient profile

Wajir County is a challenging environment for Vine Spinach (Nderema) (soil-match score 3/100) and will need significant amendment before planting. At an average pH of 8.4 the soil sits above Vine Spinach (Nderema)'s preferred 5.8–7 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.52 g/kg, P 39.3 mg/kg, K 396 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. Vine Spinach (Nderema) prefers loam soils, while Wajir is largely sandy, so drainage and organic-matter management matter more here. Wajir receives approximately 200 mm/year — well below Vine Spinach (Nderema)'s minimum of 800 mm — so supplemental irrigation would be essential for this crop. Vine Spinach (Nderema)'s full potential is about 5,000 kg/acre (~KES 250,000/acre at KES 50/kg), but at Wajir's 3/100 suitability a realistic target here is closer to 188 kg/acre (~KES 9,400/acre) unless the constraints above are addressed.