Growing Green Grams in Makueni
Soil suitability analysis based on Makueni's nutrient profile
Yes — Makueni is well suited to Green Grams. Makueni's soil (pH 7.5, alkaline) gives Green Grams a suitability score of 82/100. Match fertilizer to Makueni's nitrogen and phosphorus levels for the best result.
Makueni County is well suited to Green Grams, scoring 82/100 on ShambaIQ's soil-match model. Local soils average pH 7.5 — alkaline and inside the 5.5–8 band Green Grams prefers, so no lime is usually required. Nitrogen (0.86 g/kg), phosphorus (29.6 mg/kg) and potassium (351 mg/kg) all meet Green Grams's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Green Grams, which favours sandy loam. At current prices (about KES 120/kg) and a typical 400 kg/acre yield, a well-managed Green Grams crop here can gross roughly KES 48,000 per acre.
Soil & climate match
| Factor | Makueni soil | Green Grams needs | Status |
|---|---|---|---|
| pH | 7.5 | 5.5–8 | OK |
| Nitrogen | 0.86 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 29.6 mg/kg | min 6 mg/kg | OK |
| Potassium | 351 mg/kg | min 100 mg/kg | OK |
| Rainfall | 600 mm | 250–700 mm | OK |
| Altitude | 1,000 m | 0–1,800 m | OK |
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag