Growing Green Grams in Tana River
Soil suitability analysis based on Tana River's nutrient profile
Yes — Tana River is well suited to Green Grams. Tana River's soil (pH 6.4, slightly acidic) gives Green Grams a suitability score of 90/100. Match fertilizer to Tana River's nitrogen and phosphorus levels for the best result.
Tana River County is well suited to Green Grams, scoring 90/100 on ShambaIQ's soil-match model. Local soils average pH 6.4 — slightly acidic to near-neutral and inside the 5.5–8 band Green Grams prefers, so no lime is usually required. Nitrogen (1.04 g/kg), phosphorus (8.5 mg/kg) and potassium (108 mg/kg) all meet Green Grams's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy 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 | Tana River soil | Green Grams needs | Status |
|---|---|---|---|
| pH | 6.4 | 5.5–8 | OK |
| Nitrogen | 1.04 g/kg | min 0.5 g/kg | OK |
| Phosphorus | 8.5 mg/kg | min 6 mg/kg | OK |
| Potassium | 108 mg/kg | min 100 mg/kg | OK |
| Rainfall | 400 mm | 250–700 mm | OK |
| Altitude | 200 m | 0–1,800 m | OK |
Top dressing guide
Recommended seed varieties
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag