Growing Kale (Sukuma Wiki) in Kirinyaga
Soil suitability analysis based on Kirinyaga's nutrient profile
Yes — Kirinyaga is well suited to Kale (Sukuma Wiki). Kirinyaga's soil (pH 5.31, strongly acidic) gives Kale (Sukuma Wiki) a suitability score of 84/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Kirinyaga County is well suited to Kale (Sukuma Wiki), scoring 84/100 on ShambaIQ's soil-match model. Local soils average pH 5.31 — moderately acidic and inside the 5–7 band Kale (Sukuma Wiki) prefers, so no lime is usually required. Nitrogen (1.36 g/kg), phosphorus (12.5 mg/kg) and potassium (177 mg/kg) all meet Kale (Sukuma Wiki)'s requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay soils suit Kale (Sukuma Wiki), which favours clay loam. On ShambaIQ's soil-match model, Kale (Sukuma Wiki) is the #11 soil match of the 106 crops we assess for Kirinyaga County. At current prices (about KES 20/kg) and a typical 12,000 kg/acre yield, a well-managed Kale (Sukuma Wiki) crop here can gross roughly KES 240,000 per acre.
Soil & climate match
| Factor | Kirinyaga soil | Kale (Sukuma Wiki) needs | Status |
|---|---|---|---|
| pH | 5.31 | 5–7 | OK |
| Nitrogen | 1.36 g/kg | min 1.2 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 | 700–1,800 mm | OK |
| Altitude | 1,500 m | 500–2,500 m | OK |
Planting calendar for Kirinyaga
Long Rains· March–MayMain season here
Short Rains· October–December
Dry Season· January–March
Top dressing guide
Kirinyaga's nitrogen (1.36 g/kg) already meets Kale (Sukuma Wiki)'s 1.2 g/kg requirement, so this is a maintenance rate.
Seed varieties for Kirinyaga
Varieties suited to Kirinyaga's 1,500 m altitude and 1,300 mm annual rainfall — 2 of 2 kale (sukuma wiki) varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag