Growing Cassava in Nyamira
Soil suitability analysis based on Nyamira's nutrient profile
Nyamira County is a solid choice for Cassava, with a soil-match score of 61/100. Local soils average pH 5.58 — slightly acidic to near-neutral and inside the 4.5–7 band Cassava prefers, so no lime is usually required. The main gap is potassium — measured at N 0.84 g/kg, P 11.6 mg/kg, K 148 mg/kg against this crop's low/low/medium demand — so the fertilizer plan below prioritises closing that deficit. Cassava prefers sandy soils, while Nyamira is largely clay loam, so drainage and organic-matter management matter more here. At 1700 m, the county sits above Cassava's preferred altitude ceiling of 1400 m, where frost risk and cold nights reduce the crop's productivity. Cassava's full potential is about 6,000 kg/acre (~KES 90,000/acre at KES 15/kg), but at Nyamira's 61/100 suitability a realistic target here is closer to 4,575 kg/acre (~KES 68,625/acre) unless the constraints above are addressed.
Soil & climate match
| Factor | Nyamira soil | Cassava needs | Status |
|---|---|---|---|
| pH | 5.58 | 4.5–7 | OK |
| Nitrogen | 0.84 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 11.6 mg/kg | min 6 mg/kg | OK |
| Potassium | 148 mg/kg | min 150 mg/kg | Low |
| Rainfall | 1,600 mm | 500–1,500 mm | High |
| Altitude | 1,700 m | 0–1,400 m | High |
Planting calendar
Long Rains
Short Rains
Dry Season
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag