Growing Sorghum in Vihiga
Soil suitability analysis based on Vihiga's nutrient profile
Possible but challenging — Vihiga is only marginally suited to Sorghum. Vihiga's soil (pH 5.62, slightly acidic) gives Sorghum a suitability score of 41/100. Match fertilizer to Vihiga's nitrogen and phosphorus levels for the best result.
Vihiga County is a challenging environment for Sorghum (soil-match score 41/100) and will need significant amendment before planting. Local soils average pH 5.62 — slightly acidic to near-neutral and inside the 5–8 band Sorghum prefers, so no lime is usually required. Nitrogen (1.02 g/kg), phosphorus (14.8 mg/kg) and potassium (164 mg/kg) all meet Sorghum's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Sorghum, which favours clay. On ShambaIQ's soil-match model, Sorghum is the #77 soil match of the 106 crops we assess for Vihiga County. Sorghum's full potential is about 1,200 kg/acre (~KES 81,600/acre at KES 68/kg), but at Vihiga's 41/100 suitability a realistic target here is closer to 615 kg/acre (~KES 41,820/acre) unless the constraints above are addressed.
Better matched to Vihiga's soil: Sweet Potato, Soybeans, and Coffee (Arabica) — each scores higher on the same soil.
Soil & climate match
| Factor | Vihiga soil | Sorghum needs | Status |
|---|---|---|---|
| pH | 5.62 | 5–8 | OK |
| Nitrogen | 1.02 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 14.8 mg/kg | min 6 mg/kg | OK |
| Potassium | 164 mg/kg | min 100 mg/kg | OK |
| Rainfall | 1,800 mm | 250–700 mm | High |
| Altitude | 1,700 m | 0–1,800 m | OK |
Planting calendar for Vihiga
Long Rains· March–MayMain season here
Short Rains· August–October
Dry Season· January–March
Top dressing guide
Vihiga's nitrogen (1.02 g/kg) already meets Sorghum's 0.5 g/kg requirement, so this is a maintenance rate.
Seed varieties for Vihiga
Varieties suited to Vihiga's 1,700 m altitude and 1,800 mm annual rainfall — 1 of 2 sorghum varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag