Growing Sorghum in Machakos

Soil suitability analysis based on Machakos's nutrient profile

Quick answer

Yes — Machakos is well suited to Sorghum. Machakos's soil (pH 7.03, near-neutral) gives Sorghum a suitability score of 87/100. Match fertilizer to Machakos's nitrogen and phosphorus levels for the best result.

Machakos County is well suited to Sorghum, scoring 87/100 on ShambaIQ's soil-match model. Local soils average pH 7.03 — neutral and inside the 5–8 band Sorghum prefers, so no lime is usually required. Nitrogen (0.82 g/kg), phosphorus (31.4 mg/kg) and potassium (338 mg/kg) all meet Sorghum's requirements, so a maintenance fertilizer programme is enough. Sorghum prefers clay soils, while Machakos is largely sandy loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Sorghum is the #20 soil match of the 106 crops we assess for Machakos County. At current prices (about KES 68/kg) and a typical 1,200 kg/acre yield, a well-managed Sorghum crop here can gross roughly KES 81,600 per acre.

87Suitability score

Soil & climate match

FactorMachakos soilSorghum needsStatus
pH7.035–8OK
Nitrogen0.82 g/kgmin 0.5 g/kgOK
Phosphorus31.4 mg/kgmin 6 mg/kgOK
Potassium338 mg/kgmin 100 mg/kgOK
Rainfall700 mm250–700 mmOK
Altitude1,100 m0–1,800 mOK

Planting calendar for Machakos

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 Machakos
0.5

Machakos's nitrogen (0.82 g/kg) already meets Sorghum's 0.5 g/kg requirement, so this is a maintenance rate.

Seed varieties for Machakos

Varieties suited to Machakos's 1,100 m altitude and 700 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 1,200 kg/acre
Estimated revenueKES 81,600/acre

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