Growing Green Grams in Busia
Soil suitability analysis based on Busia's nutrient profile
Generally not ideal — Busia is poorly suited to Green Grams. Busia's soil (pH 5.29, strongly acidic) gives Green Grams a suitability score of 35/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.
Busia County is a challenging environment for Green Grams (soil-match score 35/100) and will need significant amendment before planting. At an average pH of 5.29 the soil is moderately acidic, below Green Grams's preferred 5.5–8 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (0.91 g/kg), phosphorus (16.6 mg/kg) and potassium (175 mg/kg) all meet Green Grams's requirements, so a maintenance fertilizer programme is enough. Green Grams prefers sandy loam soils, while Busia is largely clay loam, so drainage and organic-matter management matter more here. Green Grams's full potential is about 400 kg/acre (~KES 48,000/acre at KES 120/kg), but at Busia's 35/100 suitability a realistic target here is closer to 175 kg/acre (~KES 21,000/acre) unless the constraints above are addressed.
Soil & climate match
| Factor | Busia soil | Green Grams needs | Status |
|---|---|---|---|
| pH | 5.29 | 5.5–8 | Adjust |
| 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
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag