Growing Potato in Marsabit
Soil suitability analysis based on Marsabit's nutrient profile
Generally not ideal — Marsabit is poorly suited to Potato. Marsabit's soil (pH 8.22, alkaline) gives Potato a suitability score of 4/100. Match fertilizer to Marsabit's nitrogen and phosphorus levels for the best result.
Marsabit County is a challenging environment for Potato (soil-match score 4/100) and will need significant amendment before planting. At an average pH of 8.22 the soil sits above Potato's preferred 4.8–6.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.52 g/kg, P 37.3 mg/kg, K 420 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Potato, which favours sandy loam. Marsabit receives approximately 300 mm/year — well below Potato's minimum of 700 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Potato is the #88 soil match of the 106 crops we assess for Marsabit County. Potato's full potential is about 8,000 kg/acre (~KES 304,000/acre at KES 38/kg), but at Marsabit's 4/100 suitability a realistic target here is closer to 400 kg/acre (~KES 15,200/acre) unless the constraints above are addressed.
Better matched to Marsabit's soil: Sisal, Chia, and Aloe Vera — each scores higher on the same soil.
Soil & climate match
| Factor | Marsabit soil | Potato needs | Status |
|---|---|---|---|
| pH | 8.22 | 4.8–6.5 | Adjust |
| Nitrogen | 0.52 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 37.3 mg/kg | min 20 mg/kg | OK |
| Potassium | 420 mg/kg | min 200 mg/kg | OK |
| Rainfall | 300 mm | 700–1,500 mm | Low |
| Altitude | 1,100 m | 1,500–3,000 m | Low |
Planting calendar for Marsabit
Long Rains· March–May
Short Rains· October–DecemberMain season here
Dry Season· January–March
Top dressing guide
Marsabit's nitrogen (0.52 g/kg) is 43% of the 1.2 g/kg Potato needs, so the standard 1 bag/acre is raised to 1.5. Split it across two applications to limit leaching.
Seed varieties for Marsabit
Varieties suited to Marsabit's 1,100 m altitude and 300 mm annual rainfall — 1 of 14 potato varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag