Growing Cotton in Mandera
Soil suitability analysis based on Mandera's nutrient profile
Generally not ideal — Mandera is poorly suited to Cotton. Mandera's soil (pH 8.38, alkaline) gives Cotton a suitability score of 9/100. Match fertilizer to Mandera's nitrogen and phosphorus levels for the best result.
Mandera County is a challenging environment for Cotton (soil-match score 9/100) and will need significant amendment before planting. At an average pH of 8.38 the soil sits above Cotton's preferred 5.8–8 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. Cotton prefers clay soils, while Mandera is largely sandy, so drainage and organic-matter management matter more here. Mandera receives approximately 180 mm/year — well below Cotton's minimum of 450 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Cotton is the #15 soil match of the 106 crops we assess for Mandera County. Cotton's full potential is about 900 kg/acre (~KES 61,200/acre at KES 68/kg), but at Mandera's 9/100 suitability a realistic target here is closer to 101 kg/acre (~KES 6,868/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 | Cotton needs | Status |
|---|---|---|---|
| pH | 8.38 | 5.8–8 | 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 | 450–1,200 mm | Low |
| Altitude | 250 m | 0–1,500 m | OK |
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag