Growing Quinoa in Embu
Soil suitability analysis based on Embu's nutrient profile
Generally not ideal — Embu is poorly suited to Quinoa. Embu's soil (pH 5.1, strongly acidic) gives Quinoa a suitability score of 35/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Embu County is a challenging environment for Quinoa (soil-match score 35/100) and will need significant amendment before planting. At an average pH of 5.1 the soil is moderately acidic, below Quinoa's preferred 6–8.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.04 g/kg), phosphorus (12.6 mg/kg) and potassium (194 mg/kg) all meet Quinoa's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Quinoa, which favours loam. On ShambaIQ's soil-match model, Quinoa is the #100 soil match of the 106 crops we assess for Embu County. Quinoa's full potential is about 700 kg/acre (~KES 105,000/acre at KES 150/kg), but at Embu's 35/100 suitability a realistic target here is closer to 306 kg/acre (~KES 45,900/acre) unless the constraints above are addressed.
Better matched to Embu's soil: Pineapple, Avocado, and Macadamia — each scores higher on the same soil.
Soil & climate match
| Factor | Embu soil | Quinoa needs | Status |
|---|---|---|---|
| pH | 5.1 | 6–8.5 | Adjust |
| Nitrogen | 1.04 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 12.6 mg/kg | min 12 mg/kg | OK |
| Potassium | 194 mg/kg | min 150 mg/kg | OK |
| Rainfall | 1,300 mm | 300–800 mm | High |
| Altitude | 1,400 m | 1,500–3,000 m | Low |
Planting calendar for Embu
Long Rains· March–MayMain season here
Short Rains· October–December
Top dressing guide
Embu's nitrogen (1.04 g/kg) already meets Quinoa's 0.8 g/kg requirement, so this is a maintenance rate.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag