Growing Chia in Siaya
Soil suitability analysis based on Siaya's nutrient profile
Possible but challenging — Siaya is only marginally suited to Chia. Siaya's soil (pH 5.33, strongly acidic) gives Chia a suitability score of 48/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Chia can be grown in Siaya County, but the soil scores 48/100 and needs targeted management to reach full potential. At an average pH of 5.33 the soil is moderately acidic, below Chia's preferred 6–8 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.2 g/kg), phosphorus (12.1 mg/kg) and potassium (134 mg/kg) all meet Chia's requirements, so a maintenance fertilizer programme is enough. Chia prefers sandy loam soils, while Siaya is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Chia is the #88 soil match of the 106 crops we assess for Siaya County. Chia's full potential is about 400 kg/acre (~KES 60,000/acre at KES 150/kg), but at Siaya's 48/100 suitability a realistic target here is closer to 240 kg/acre (~KES 36,000/acre) unless the constraints above are addressed.
Better matched to Siaya's soil: Macadamia, Pineapple, and Avocado — each scores higher on the same soil.
Soil & climate match
| Factor | Siaya soil | Chia needs | Status |
|---|---|---|---|
| pH | 5.33 | 6–8 | Adjust |
| Nitrogen | 1.2 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 12.1 mg/kg | min 12 mg/kg | OK |
| Potassium | 134 mg/kg | min 100 mg/kg | OK |
| Rainfall | 1,200 mm | 300–800 mm | High |
| Altitude | 1,200 m | 1,000–2,200 m | OK |
Planting calendar for Siaya
Long Rains· March–MayMain season here
Short Rains· September–November
Top dressing guide
Siaya's nitrogen (1.2 g/kg) already meets Chia's 0.5 g/kg requirement, so this is a maintenance rate.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag