Growing Cowpeas in Busia
Soil suitability analysis based on Busia's nutrient profile
Generally not ideal — Busia is poorly suited to Cowpeas. Busia's soil (pH 5.29, strongly acidic) gives Cowpeas a suitability score of 37/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Busia County is a challenging environment for Cowpeas (soil-match score 37/100) and will need significant amendment before planting. Local soils average pH 5.29 — moderately acidic and inside the 5–8 band Cowpeas prefers, so no lime is usually required. Nitrogen (0.91 g/kg), phosphorus (16.6 mg/kg) and potassium (175 mg/kg) all meet Cowpeas's requirements, so a maintenance fertilizer programme is enough. Cowpeas prefers sandy soils, while Busia is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Cowpeas is the #92 soil match of the 106 crops we assess for Busia County. Cowpeas's full potential is about 450 kg/acre (~KES 29,250/acre at KES 65/kg), but at Busia's 37/100 suitability a realistic target here is closer to 208 kg/acre (~KES 13,520/acre) unless the constraints above are addressed.
Better matched to Busia's soil: Macadamia, Avocado, and Pineapple — each scores higher on the same soil.
Soil & climate match
| Factor | Busia soil | Cowpeas needs | Status |
|---|---|---|---|
| pH | 5.29 | 5–8 | OK |
| Nitrogen | 0.91 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 16.6 mg/kg | min 6 mg/kg | OK |
| Potassium | 175 mg/kg | min 100 mg/kg | OK |
| Rainfall | 1,400 mm | 250–700 mm | High |
| Altitude | 1,200 m | 0–1,800 m | OK |
Top dressing guide
Busia's nitrogen reads 0.91 g/kg, but the rate stays at zero: Cowpeas is not top-dressed, for the crop-specific reason above.
Seed varieties for Busia
Varieties suited to Busia's 1,200 m altitude and 1,400 mm annual rainfall — 1 of 2 cowpeas varieties we list.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag