Growing Groundnuts in Tharaka Nithi
Soil suitability analysis based on Tharaka Nithi's nutrient profile
Yes — Tharaka Nithi is well suited to Groundnuts. Tharaka Nithi's soil (pH 4.99, strongly acidic) gives Groundnuts a suitability score of 79/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Tharaka Nithi County is well suited to Groundnuts, scoring 79/100 on ShambaIQ's soil-match model. At an average pH of 4.99 the soil is strongly acidic, below Groundnuts's preferred 5–7 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.23 g/kg), phosphorus (19.6 mg/kg) and potassium (211 mg/kg) all meet Groundnuts's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Groundnuts, which favours sandy. On ShambaIQ's soil-match model, Groundnuts is the #6 soil match of the 106 crops we assess for Tharaka Nithi County. At current prices (about KES 90/kg) and a typical 500 kg/acre yield, a well-managed Groundnuts crop here can gross roughly KES 45,000 per acre.
Soil & climate match
| Factor | Tharaka Nithi soil | Groundnuts needs | Status |
|---|---|---|---|
| pH | 4.99 | 5–7 | Adjust |
| Nitrogen | 1.23 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 19.6 mg/kg | min 12 mg/kg | OK |
| Potassium | 211 mg/kg | min 150 mg/kg | OK |
| Rainfall | 900 mm | 500–1,400 mm | OK |
| Altitude | 1,100 m | 0–1,800 m | OK |
Top dressing guide
Tharaka Nithi's nitrogen reads 1.23 g/kg, but the rate stays at zero: Groundnuts is not top-dressed, for the crop-specific reason above.
Seed varieties for Tharaka Nithi
Varieties suited to Tharaka Nithi's 1,100 m altitude and 900 mm annual rainfall — 2 of 2 groundnuts varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag