Growing Wheat in Meru

Soil suitability analysis based on Meru's nutrient profile

Meru County is a challenging environment for Wheat (soil-match score 32/100) and will need significant amendment before planting. At an average pH of 4.88 the soil is strongly acidic, below Wheat's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.22 g/kg), phosphorus (20.3 mg/kg) and potassium (218 mg/kg) all meet Wheat's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Wheat, which favours clay. Wheat's full potential is about 2,000 kg/acre (~KES 100,000/acre at KES 50/kg), but at Meru's 32/100 suitability a realistic target here is closer to 800 kg/acre (~KES 40,000/acre) unless the constraints above are addressed.