Growing Green Grams in Kericho

Soil suitability analysis based on Kericho's nutrient profile

Quick answer

Generally not ideal — Kericho is poorly suited to Green Grams. Kericho's soil (pH 5.94, slightly acidic) gives Green Grams a suitability score of 34/100. Match fertilizer to Kericho's nitrogen and phosphorus levels for the best result.

Kericho County is a challenging environment for Green Grams (soil-match score 34/100) and will need significant amendment before planting. Local soils average pH 5.94 — slightly acidic to near-neutral and inside the 5.5–8 band Green Grams prefers, so no lime is usually required. Nitrogen (1.34 g/kg), phosphorus (23.7 mg/kg) and potassium (225 mg/kg) all meet Green Grams's requirements, so a maintenance fertilizer programme is enough. Green Grams prefers sandy loam soils, while Kericho is largely clay, 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 Kericho's 34/100 suitability a realistic target here is closer to 170 kg/acre (~KES 20,400/acre) unless the constraints above are addressed.

34Suitability score

Soil & climate match

FactorKericho soilGreen Grams needsStatus
pH5.945.58OK
Nitrogen1.34 g/kgmin 0.5 g/kgOK
Phosphorus23.7 mg/kgmin 6 mg/kgOK
Potassium225 mg/kgmin 100 mg/kgOK
Rainfall1,800 mm250–700 mmHigh
Altitude2,000 m0–1,800 mHigh

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 in Kericho170 kg/acre
Estimated revenueKES 20,400/acre
Adjusted for Kericho's 34/100 suitability. Under ideal conditions Green Grams can reach 400 kg/acre (~KES 48,000/acre) — attainable here only after the climate and soil constraints below are addressed.

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