Growing Sorghum in Samburu

Soil suitability analysis based on Samburu's nutrient profile

Quick answer

Yes, with the right inputs — Samburu is moderately suited to Sorghum. Samburu's soil (pH 8.28, alkaline) gives Sorghum a suitability score of 58/100. Match fertilizer to Samburu's nitrogen and phosphorus levels for the best result.

Sorghum can be grown in Samburu County, but the soil scores 58/100 and needs targeted management to reach full potential. At an average pH of 8.28 the soil sits above Sorghum's preferred 5–8 range, which can limit uptake of phosphorus and micronutrients. Nitrogen (0.67 g/kg), phosphorus (42.1 mg/kg) and potassium (387 mg/kg) all meet Sorghum's requirements, so a maintenance fertilizer programme is enough. Sorghum prefers clay soils, while Samburu is largely sandy, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Sorghum is the #5 soil match of the 106 crops we assess for Samburu County. Sorghum's full potential is about 1,200 kg/acre (~KES 81,600/acre at KES 68/kg), but at Samburu's 58/100 suitability a realistic target here is closer to 870 kg/acre (~KES 59,160/acre) unless the constraints above are addressed.

Better matched to Samburu's soil: Sisal, Aloe Vera, and Green Grams — each scores higher on the same soil.

58Suitability score

Soil & climate match

FactorSamburu soilSorghum needsStatus
pH8.285–8Adjust
Nitrogen0.67 g/kgmin 0.5 g/kgOK
Phosphorus42.1 mg/kgmin 6 mg/kgOK
Potassium387 mg/kgmin 100 mg/kgOK
Rainfall350 mm250–700 mmOK
Altitude900 m0–1,800 mOK

Planting calendar for Samburu

Long Rains· March–May

March
Sowing & Basal Fertilizer
April
Top Dressing & 1st Weeding
May
Bird Control & Scouting

Short Rains· October–DecemberMain season here

October
Sowing & Basal Fertilizer
November
Top Dressing & 1st Weeding
December
Bird Control

Dry Season· January–March

January
Harvesting & Drying
February
Land Resting
March
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 in Samburu
0.5

Samburu's nitrogen (0.67 g/kg) already meets Sorghum's 0.5 g/kg requirement, so this is a maintenance rate.

Seed varieties for Samburu

Varieties suited to Samburu's 900 m altitude and 350 mm annual rainfall — 2 of 2 sorghum varieties we list.

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 Samburu870 kg/acre
Estimated revenueKES 59,160/acre
Adjusted for Samburu's 58/100 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(5,700)
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