Growing Cashew Nuts in Laikipia

Soil suitability analysis based on Laikipia's nutrient profile

Laikipia County is a challenging environment for Cashew Nuts (soil-match score 0/100) and will need significant amendment before planting. At an average pH of 4.99 the soil is strongly acidic, below Cashew Nuts's preferred 5–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.42 g/kg), phosphorus (16.6 mg/kg) and potassium (215 mg/kg) all meet Cashew Nuts's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Cashew Nuts, which favours sandy. At 1700 m, the county sits above Cashew Nuts's preferred altitude ceiling of 700 m, where frost risk and cold nights reduce the crop's productivity. At current prices (about KES 275/kg) and a typical 900 kg/acre yield, a well-managed Cashew Nuts crop here can gross roughly KES 247,500 per acre.