Growing Cashew Nuts in Kitui
Soil suitability analysis based on Kitui's nutrient profile
Generally not ideal — Kitui is poorly suited to Cashew Nuts. Kitui's soil (pH 7.03, near-neutral) gives Cashew Nuts a suitability score of 17/100. Match fertilizer to Kitui's nitrogen and phosphorus levels for the best result.
Kitui County is a challenging environment for Cashew Nuts (soil-match score 17/100) and will need significant amendment before planting. Local soils average pH 7.03 — neutral and inside the 5–7.5 band Cashew Nuts prefers, so no lime is usually required. Nitrogen (0.74 g/kg), phosphorus (30.5 mg/kg) and potassium (339 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 900 m, the county sits above Cashew Nuts's preferred altitude ceiling of 500 m, where frost risk and cold nights reduce the crop's productivity. On ShambaIQ's soil-match model, Cashew Nuts is the #87 soil match of the 106 crops we assess for Kitui County. Cashew Nuts's full potential is about 900 kg/acre (~KES 247,500/acre at KES 275/kg), but at Kitui's 17/100 suitability a realistic target here is closer to 191 kg/acre (~KES 52,525/acre) unless the constraints above are addressed.
Better matched to Kitui's soil: Mango, Sisal, and Moringa — each scores higher on the same soil.
Soil & climate match
| Factor | Kitui soil | Cashew Nuts needs | Status |
|---|---|---|---|
| pH | 7.03 | 5–7.5 | OK |
| Nitrogen | 0.74 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 30.5 mg/kg | min 6 mg/kg | OK |
| Potassium | 339 mg/kg | min 150 mg/kg | OK |
| Rainfall | 500 mm | 600–1,500 mm | Low |
| Altitude | 900 m | 0–500 m | High |
Planting calendar for Kitui
Long Rains· March–May
Short Rains· October–DecemberMain season here
Dry Season· January–March
Top dressing guide
Kitui's nitrogen (0.74 g/kg) already meets Cashew Nuts's 0.5 g/kg requirement, so this is a maintenance rate.
Seed varieties for Kitui
Varieties suited to Kitui's 900 m altitude and 500 mm annual rainfall — 1 of 2 cashew nuts varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag