Growing Sweet Potato in Nakuru

Soil suitability analysis based on Nakuru's nutrient profile

Quick answer

Yes — Nakuru is well suited to Sweet Potato. Nakuru's soil (pH 6.28, slightly acidic) gives Sweet Potato a suitability score of 89/100. Match fertilizer to Nakuru's nitrogen and phosphorus levels for the best result.

Nakuru County is well suited to Sweet Potato, scoring 89/100 on ShambaIQ's soil-match model. Local soils average pH 6.28 — slightly acidic to near-neutral and inside the 4.5–7 band Sweet Potato prefers, so no lime is usually required. Nitrogen (1.59 g/kg), phosphorus (25.2 mg/kg) and potassium (239 mg/kg) all meet Sweet Potato's requirements, so a maintenance fertilizer programme is enough. Sweet Potato prefers sandy loam soils, while Nakuru is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Sweet Potato is the #47 soil match of the 106 crops we assess for Nakuru County. At current prices (about KES 18/kg) and a typical 5,000 kg/acre yield, a well-managed Sweet Potato crop here can gross roughly KES 90,000 per acre.

89Suitability score

Soil & climate match

FactorNakuru soilSweet Potato needsStatus
pH6.284.57OK
Nitrogen1.59 g/kgmin 0.5 g/kgOK
Phosphorus25.2 mg/kgmin 12 mg/kgOK
Potassium239 mg/kgmin 200 mg/kgOK
Rainfall900 mm600–1,800 mmOK
Altitude1,750 m0–2,200 mOK

Planting calendar for Nakuru

Long Rains· AprilJuneMain season here

April
Vine Cutting Planting & Basal Fertilizer
May
Weeding & Vine Management
June
Harvesting & Storage

Short Rains· OctoberDecember

October
Vine Planting & Basal Fertilizer
November
Vine Trailing & Weeding
December
Harvesting

Dry Season· FebruaryApril

February
Irrigation & Vine Planting
March
Weeding
April
Harvesting & Vine Multiplication

Top dressing guide

Product
None
Timing
None required
Instruction
Sweet potatoes rarely need top dressing. Excess N promotes vines over tubers.
Bags per acre in Nakuru
0

Nakuru's nitrogen reads 1.59 g/kg, but the rate stays at zero: Sweet Potato is not top-dressed, for the crop-specific reason above.

Seed varieties for Nakuru

Varieties suited to Nakuru's 1,750 m altitude and 900 mm annual rainfall — 5 of 5 sweet potato varieties we list.

KabodeMedium/Dryland
CIP/KALRO · 120-150 days · 3–4 tons/acre
Orange-fleshed; high Vitamin A; drought tolerant.
Kenspot 5Medium/Highland
KALRO · 90-120 days · 4–5 tons/acre
Purple-skinned; excellent taste; good market demand.
VitamuMedium/Highland
KALRO · 120-150 days · 3.5–4.5 tons/acre
Orange-fleshed; dual purpose grain and fodder; KEPHIS certified; 1200-1800m; released 2015.
Kenspot-1Highland
KARI Njoro · 120-150 days · 3.5–4.5 tons/acre
Orange-fleshed; high beta-carotene; suited to 1700-2300m; released 2013.
Kenspot-3Highland
KARI Njoro · 120-150 days · 4–5 tons/acre
White-fleshed; high dry matter; good storability; 1900-2300m cold highland adapted; released 2013.

Economics

Market priceKES 18/kg
Expected yield 5,000 kg/acre
Estimated revenueKES 90,000/acre

Preferred textureSandy Loam

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