Growing Quinoa in Nyeri
Soil suitability analysis based on Nyeri's nutrient profile
Possible but challenging — Nyeri is only marginally suited to Quinoa. Nyeri's soil (pH 5.23, strongly acidic) gives Quinoa a suitability score of 45/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Quinoa can be grown in Nyeri County, but the soil scores 45/100 and needs targeted management to reach full potential. At an average pH of 5.23 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 (1.09 g/kg), phosphorus (15.5 mg/kg) and potassium (192 mg/kg) all meet Quinoa's requirements, so a maintenance fertilizer programme is enough. Quinoa prefers loam soils, while Nyeri is largely clay, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Quinoa is the #91 soil match of the 106 crops we assess for Nyeri County. Quinoa's full potential is about 700 kg/acre (~KES 105,000/acre at KES 150/kg), but at Nyeri's 45/100 suitability a realistic target here is closer to 394 kg/acre (~KES 59,100/acre) unless the constraints above are addressed.
Better matched to Nyeri's soil: Macadamia, Pineapple, and Avocado — each scores higher on the same soil.
Soil & climate match
| Factor | Nyeri soil | Quinoa needs | Status |
|---|---|---|---|
| pH | 5.23 | 6–8.5 | Adjust |
| Nitrogen | 1.09 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 15.5 mg/kg | min 12 mg/kg | OK |
| Potassium | 192 mg/kg | min 150 mg/kg | OK |
| Rainfall | 1,200 mm | 300–800 mm | High |
| Altitude | 1,700 m | 1,500–3,000 m | OK |
Planting calendar for Nyeri
Long Rains· March–MayMain season here
Short Rains· October–December
Top dressing guide
Nyeri's nitrogen (1.09 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