Growing Chilies in Mandera
Soil suitability analysis based on Mandera's nutrient profile
Generally not ideal — Mandera is poorly suited to Chilies. Mandera's soil (pH 8.38, alkaline) gives Chilies a suitability score of 7/100. Match fertilizer to Mandera's nitrogen and phosphorus levels for the best result.
Mandera County is a challenging environment for Chilies (soil-match score 7/100) and will need significant amendment before planting. At an average pH of 8.38 the soil sits above Chilies's preferred 6–7.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.53 g/kg, P 38.3 mg/kg, K 420 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Chilies, which favours sandy loam. Mandera receives approximately 180 mm/year — well below Chilies's minimum of 500 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Chilies is the #20 soil match of the 106 crops we assess for Mandera County. Chilies's full potential is about 2,500 kg/acre (~KES 412,500/acre at KES 165/kg), but at Mandera's 7/100 suitability a realistic target here is closer to 219 kg/acre (~KES 36,135/acre) unless the constraints above are addressed.
Better matched to Mandera's soil: Sisal, Aloe Vera, and Green Grams — each scores higher on the same soil.
Soil & climate match
| Factor | Mandera soil | Chilies needs | Status |
|---|---|---|---|
| pH | 8.38 | 6–7.5 | Adjust |
| Nitrogen | 0.53 g/kg | min 0.8 g/kg | Low |
| Phosphorus | 38.3 mg/kg | min 12 mg/kg | OK |
| Potassium | 420 mg/kg | min 150 mg/kg | OK |
| Rainfall | 180 mm | 500–1,200 mm | Low |
| Altitude | 250 m | 0–1,200 m | OK |
Top dressing guide
Mandera's nitrogen (0.53 g/kg) is 66% of the 0.8 g/kg Chilies needs, so the standard 0.5 bags/acre is raised to 0.75. Split it across two applications to limit leaching.
Seed varieties for Mandera
Varieties suited to Mandera's 250 m altitude and 180 mm annual rainfall — 1 of 2 chilies varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag