Growing Groundnuts in Kirinyaga
Soil suitability analysis based on Kirinyaga's nutrient profile
Yes — Kirinyaga is well suited to Groundnuts. Kirinyaga's soil (pH 5.31, strongly acidic) gives Groundnuts a suitability score of 85/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Kirinyaga County is well suited to Groundnuts, scoring 85/100 on ShambaIQ's soil-match model. Local soils average pH 5.31 — moderately acidic and inside the 5–7 band Groundnuts prefers, so no lime is usually required. Nitrogen (1.36 g/kg), phosphorus (12.5 mg/kg) and potassium (177 mg/kg) all meet Groundnuts's requirements, so a maintenance fertilizer programme is enough. Groundnuts prefers sandy soils, while Kirinyaga is largely clay, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Groundnuts is the #9 soil match of the 106 crops we assess for Kirinyaga 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 | Kirinyaga soil | Groundnuts needs | Status |
|---|---|---|---|
| pH | 5.31 | 5–7 | OK |
| Nitrogen | 1.36 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 12.5 mg/kg | min 12 mg/kg | OK |
| Potassium | 177 mg/kg | min 150 mg/kg | OK |
| Rainfall | 1,300 mm | 500–1,400 mm | OK |
| Altitude | 1,500 m | 0–1,800 m | OK |
Top dressing guide
Kirinyaga's nitrogen reads 1.36 g/kg, but the rate stays at zero: Groundnuts is not top-dressed, for the crop-specific reason above.
Seed varieties for Kirinyaga
Varieties suited to Kirinyaga's 1,500 m altitude and 1,300 mm annual rainfall — 1 of 2 groundnuts varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag