Growing Kale (Sukuma Wiki) in Makueni
Soil suitability analysis based on Makueni's nutrient profile
Possible but challenging — Makueni is only marginally suited to Kale (Sukuma Wiki). Makueni's soil (pH 7.5, alkaline) gives Kale (Sukuma Wiki) a suitability score of 45/100. Match fertilizer to Makueni's nitrogen and phosphorus levels for the best result.
Kale (Sukuma Wiki) can be grown in Makueni County, but the soil scores 45/100 and needs targeted management to reach full potential. At an average pH of 7.5 the soil sits above Kale (Sukuma Wiki)'s preferred 5–7 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.86 g/kg, P 29.6 mg/kg, K 351 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. Kale (Sukuma Wiki) prefers clay loam soils, while Makueni is largely sandy loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Kale (Sukuma Wiki) is the #68 soil match of the 106 crops we assess for Makueni County. Kale (Sukuma Wiki)'s full potential is about 12,000 kg/acre (~KES 240,000/acre at KES 20/kg), but at Makueni's 45/100 suitability a realistic target here is closer to 6,750 kg/acre (~KES 135,000/acre) unless the constraints above are addressed.
Better matched to Makueni's soil: Lucerne, Mango, and Sisal — each scores higher on the same soil.
Soil & climate match
| Factor | Makueni soil | Kale (Sukuma Wiki) needs | Status |
|---|---|---|---|
| pH | 7.5 | 5–7 | Adjust |
| Nitrogen | 0.86 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 29.6 mg/kg | min 12 mg/kg | OK |
| Potassium | 351 mg/kg | min 150 mg/kg | OK |
| Rainfall | 600 mm | 700–1,800 mm | Low |
| Altitude | 1,000 m | 500–2,500 m | OK |
Planting calendar for Makueni
Long Rains· March–May
Short Rains· October–DecemberMain season here
Dry Season· January–March
Top dressing guide
Makueni's nitrogen (0.86 g/kg) is 72% of the 1.2 g/kg Kale (Sukuma Wiki) needs, so the standard 0.5 bags/acre is raised to 0.75. Split it across two applications to limit leaching.
Recommended seed varieties
No variety in our list is specifically rated for Makueni's 1,000 m altitude and 600 mm rainfall, so all 2 are shown. Confirm with your agrovet before buying.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag