Growing Macadamia in Taita Taveta

Soil suitability analysis based on Taita Taveta's nutrient profile

Taita Taveta County is a challenging environment for Macadamia (soil-match score 22/100) and will need significant amendment before planting. At an average pH of 6.64 the soil sits above Macadamia's preferred 4.5–6.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is potassium — measured at N 0.97 g/kg, P 12.9 mg/kg, K 104 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly loam soils suit Macadamia, which favours loam. Taita Taveta receives approximately 500 mm/year — well below Macadamia's minimum of 700 mm — so supplemental irrigation would be essential for this crop. Macadamia's full potential is about 1,800 kg/acre (~KES 198,000/acre at KES 110/kg), but at Taita Taveta's 22/100 suitability a realistic target here is closer to 495 kg/acre (~KES 54,450/acre) unless the constraints above are addressed.