Growing Green Grams in Kitui

Soil suitability analysis based on Kitui's nutrient profile

Quick answer

Yes — Kitui is well suited to Green Grams. Kitui's soil (pH 7.03, near-neutral) gives Green Grams a suitability score of 90/100. Match fertilizer to Kitui's nitrogen and phosphorus levels for the best result.

Kitui County is well suited to Green Grams, scoring 90/100 on ShambaIQ's soil-match model. Local soils average pH 7.03 — neutral and inside the 5.5–8 band Green Grams prefers, so no lime is usually required. Nitrogen (0.74 g/kg), phosphorus (30.5 mg/kg) and potassium (339 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.

90Suitability score

Soil & climate match

FactorKitui soilGreen Grams needsStatus
pH7.035.58OK
Nitrogen0.74 g/kgmin 0.5 g/kgOK
Phosphorus30.5 mg/kgmin 6 mg/kgOK
Potassium339 mg/kgmin 100 mg/kgOK
Rainfall500 mm250–700 mmOK
Altitude900 m0–1,800 mOK

Top dressing guide

Product
None
Timing
None required
Instruction
Green Grams fix atmospheric Nitrogen. No top dressing needed. Inoculate seed with Rhizobium before planting.
Bags per Acre
0

Recommended seed varieties

N26Dryland/Medium
KALRO · 60-65 days · 3-5 bags/acre
Early maturing; tolerant to drought; popular in eastern Kenya.
KS 20Medium
KALRO · 65-75 days · 4-6 bags/acre
High yielding; good seed quality; resistant to yellow mosaic virus.

Economics

Market priceKES 120/kg
Expected yield 400 kg/acre
Estimated revenueKES 48,000/acre

Preferred textureSandy Loam

Fertilizer prices

DAP
KES 3,500(6,500)
CAN
KES 2,875(4,500)
NPK 17:17:17
KES 3,275(5,600)
Urea
KES 3,500(5,500)
Lime
KES 1,500(1,800)

Green = subsidized · (Commercial) per 50kg bag