Growing Stevia in Machakos
Soil suitability analysis based on Machakos's nutrient profile
Yes — Machakos is well suited to Stevia. Machakos's soil (pH 7.03, near-neutral) gives Stevia a suitability score of 85/100. Match fertilizer to Machakos's nitrogen and phosphorus levels for the best result.
Machakos County is well suited to Stevia, scoring 85/100 on ShambaIQ's soil-match model. Local soils average pH 7.03 — neutral and inside the 6–7.5 band Stevia prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.82 g/kg, P 31.4 mg/kg, K 338 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Stevia, which favours loam. On ShambaIQ's soil-match model, Stevia is the #41 soil match of the 106 crops we assess for Machakos County. At current prices (about KES 200/kg) and a typical 3,000 kg/acre yield, a well-managed Stevia crop here can gross roughly KES 600,000 per acre.
Soil & climate match
| Factor | Machakos soil | Stevia needs | Status |
|---|---|---|---|
| pH | 7.03 | 6–7.5 | OK |
| Nitrogen | 0.82 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 31.4 mg/kg | min 12 mg/kg | OK |
| Potassium | 338 mg/kg | min 150 mg/kg | OK |
| Rainfall | 700 mm | 700–1,500 mm | OK |
| Altitude | 1,100 m | 500–2,000 m | OK |
Planting calendar for Machakos
Long Rains· March–May
Short Rains· October–DecemberMain season here
Top dressing guide
Machakos's nitrogen (0.82 g/kg) is 68% of the 1.2 g/kg Stevia needs, so the standard 0.3 bags/acre is raised to 0.5. Split it across two applications to limit leaching.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag