Growing Groundnuts in Isiolo
Soil suitability analysis based on Isiolo's nutrient profile
Generally not ideal — Isiolo is poorly suited to Groundnuts. Isiolo's soil (pH 7.83, alkaline) gives Groundnuts a suitability score of 29/100. Match fertilizer to Isiolo's nitrogen and phosphorus levels for the best result.
Isiolo County is a challenging environment for Groundnuts (soil-match score 29/100) and will need significant amendment before planting. At an average pH of 7.83 the soil sits above Groundnuts's preferred 5–7 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.46 g/kg, P 37.4 mg/kg, K 395 mg/kg against this crop's low/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Groundnuts, which favours sandy. Isiolo receives approximately 350 mm/year — well below Groundnuts's minimum of 500 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Groundnuts is the #32 soil match of the 106 crops we assess for Isiolo County. Groundnuts's full potential is about 500 kg/acre (~KES 45,000/acre at KES 90/kg), but at Isiolo's 29/100 suitability a realistic target here is closer to 181 kg/acre (~KES 16,290/acre) unless the constraints above are addressed.
Better matched to Isiolo's soil: Sisal, Aloe Vera, and Green Grams — each scores higher on the same soil.
Soil & climate match
| Factor | Isiolo soil | Groundnuts needs | Status |
|---|---|---|---|
| pH | 7.83 | 5–7 | Adjust |
| Nitrogen | 0.46 g/kg | min 0.5 g/kg | Low |
| Phosphorus | 37.4 mg/kg | min 12 mg/kg | OK |
| Potassium | 395 mg/kg | min 150 mg/kg | OK |
| Rainfall | 350 mm | 500–1,400 mm | Low |
| Altitude | 900 m | 0–1,800 m | OK |
Top dressing guide
Isiolo's nitrogen reads 0.46 g/kg, but the rate stays at zero: Groundnuts is not top-dressed, for the crop-specific reason above.
Seed varieties for Isiolo
Varieties suited to Isiolo's 900 m altitude and 350 mm annual rainfall — 2 of 2 groundnuts varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag