Growing Sorghum in Trans Nzoia

Soil suitability analysis based on Trans Nzoia's nutrient profile

Sorghum can be grown in Trans Nzoia County, but the soil scores 51/100 and needs targeted management to reach full potential. Local soils average pH 5.93 — slightly acidic to near-neutral and inside the 5–8 band Sorghum prefers, so no lime is usually required. Nitrogen (1.68 g/kg), phosphorus (27.3 mg/kg) and potassium (213 mg/kg) all meet Sorghum's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Sorghum, which favours clay. Sorghum's full potential is about 1,200 kg/acre (~KES 81,600/acre at KES 68/kg), but at Trans Nzoia's 51/100 suitability a realistic target here is closer to 765 kg/acre (~KES 52,020/acre) unless the constraints above are addressed.

51Suitability score

Soil & climate match

FactorTrans Nzoia soilSorghum needsStatus
pH5.9358OK
Nitrogen1.68 g/kgmin 0.5 g/kgOK
Phosphorus27.3 mg/kgmin 6 mg/kgOK
Potassium213 mg/kgmin 100 mg/kgOK
Rainfall1,200 mm250–700 mmHigh
Altitude1,900 m0–1,800 mHigh

Planting calendar

Long Rains

Month 1
Sowing & Basal Fertilizer
Month 2
Top Dressing & 1st Weeding
Month 3
Bird Control & Scouting

Short Rains

Month 1
Sowing & Basal Fertilizer
Month 2
Top Dressing & 1st Weeding
Month 3
Bird Control

Dry Season

Month 1
Harvesting & Drying
Month 2
Land Resting
Month 3
Seed Selection

Top dressing guide

Product
CAN
Timing
Week 4 and at flowering
Instruction
Apply at vegetative stage then repeat at early flowering for grain development.
Bags per Acre
0.5

Recommended seed varieties

GadamDryland
KALRO · 100-110 days · 12-15 bags/acre
Ideal for commercial brewing; highly drought resilient.
SeredoMedium/Dryland
KALRO · 110-120 days · 15-18 bags/acre
Brown grain; excellent bird resistance.

Economics

Market priceKES 68/kg
Expected yield in Trans Nzoia765 kg/acre
Estimated revenueKES 52,020/acre
Adjusted for Trans Nzoia's 51/100 suitability. Under ideal conditions Sorghum can reach 1,200 kg/acre (~KES 81,600/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureClay

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