Growing Coffee (Robusta) in Kericho

Soil suitability analysis based on Kericho's nutrient profile

Kericho County is a challenging environment for Coffee (Robusta) (soil-match score 33/100) and will need significant amendment before planting. Local soils average pH 5.94 — slightly acidic to near-neutral and inside the 5–6.5 band Coffee (Robusta) prefers, so no lime is usually required. Nitrogen (1.34 g/kg), phosphorus (23.7 mg/kg) and potassium (225 mg/kg) all meet Coffee (Robusta)'s requirements, so a maintenance fertilizer programme is enough. Coffee (Robusta) prefers loam soils, while Kericho is largely clay, so drainage and organic-matter management matter more here. At 2000 m, the county sits above Coffee (Robusta)'s preferred altitude ceiling of 1200 m, where frost risk and cold nights reduce the crop's productivity. Coffee (Robusta)'s full potential is about 950 kg/acre (~KES 76,000/acre at KES 80/kg), but at Kericho's 33/100 suitability a realistic target here is closer to 392 kg/acre (~KES 31,360/acre) unless the constraints above are addressed.