Growing Rice (Upland) in Kitui

Soil suitability analysis based on Kitui's nutrient profile

Kitui County is a challenging environment for Rice (Upland) (soil-match score 27/100) and will need significant amendment before planting. At an average pH of 7.03 the soil sits above Rice (Upland)'s preferred 5–7 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.74 g/kg, P 30.5 mg/kg, K 339 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. Rice (Upland) prefers clay soils, while Kitui is largely sandy loam, so drainage and organic-matter management matter more here. Kitui receives approximately 500 mm/year — well below Rice (Upland)'s minimum of 800 mm — so supplemental irrigation would be essential for this crop. Rice (Upland)'s full potential is about 1,800 kg/acre (~KES 189,000/acre at KES 105/kg), but at Kitui's 27/100 suitability a realistic target here is closer to 608 kg/acre (~KES 63,840/acre) unless the constraints above are addressed.