Is Elgeyo Marakwet good for growing Sweet Potato?

Elgeyo Marakwet County scores 89/100 for Sweet Potato suitability (excellent). Soil pH is 6.27 against a preferred 4.5–7, nitrogen 1.39 g/kg and phosphorus 22.2 mg/kg. County rainfall is 1000 mm/year against Sweet Potato's 600–1800 mm range. This is a workable match for Sweet Potato.

What fertilizer is best for Sweet Potato in Elgeyo Marakwet?

Base the plan on Elgeyo Marakwet's soil: pH 6.27, nitrogen 1.39 g/kg and phosphorus 22.2 mg/kg. Get an exact bag-per-acre basal and top-dressing schedule free at https://shambaiq.com/app.

What soil pH does Sweet Potato need, and does Elgeyo Marakwet have it?

Sweet Potato grows best at pH 4.5–7. Elgeyo Marakwet averages pH 6.27, which is within that range.

How much can I earn from Sweet Potato per acre in Elgeyo Marakwet?

At roughly KES 18/kg and an expected 5,000 kg/acre, gross revenue is about KES 90,000 per acre before input costs. Use the ShambaIQ budget tool for a net figure based on your fertilizer plan.

Growing Sweet Potato in Elgeyo Marakwet

Soil suitability analysis based on Elgeyo Marakwet's nutrient profile

Quick answer

Yes — Elgeyo Marakwet is well suited to Sweet Potato. Elgeyo Marakwet's soil (pH 6.27, slightly acidic) gives Sweet Potato a suitability score of 89/100. Match fertilizer to Elgeyo Marakwet's nitrogen and phosphorus levels for the best result.

Elgeyo Marakwet County is well suited to Sweet Potato, scoring 89/100 on ShambaIQ's soil-match model. Local soils average pH 6.27 — slightly acidic to near-neutral and inside the 4.5–7 band Sweet Potato prefers, so no lime is usually required. Nitrogen (1.39 g/kg), phosphorus (22.2 mg/kg) and potassium (213 mg/kg) all meet Sweet Potato's requirements, so a maintenance fertilizer programme is enough. Sweet Potato prefers sandy loam soils, while Elgeyo Marakwet is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Sweet Potato is the #43 soil match of the 106 crops we assess for Elgeyo Marakwet 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.

Suitability score

Soil & climate match

Factor	Elgeyo Marakwet soil	Sweet Potato needs	Status
pH	6.27	4.5–7	OK
Nitrogen	1.39 g/kg	min 0.5 g/kg	OK
Phosphorus	22.2 mg/kg	min 12 mg/kg	OK
Potassium	213 mg/kg	min 200 mg/kg	OK
Rainfall	1,000 mm	600–1,800 mm	OK
Altitude	1,800 m	0–2,200 m	OK

Planting calendar for Elgeyo Marakwet

Long Rains· April–JuneMain season here

April

Vine Cutting Planting & Basal Fertilizer

May

Weeding & Vine Management

June

Harvesting & Storage

Short Rains· October–December

October

Vine Planting & Basal Fertilizer

November

Vine Trailing & Weeding

December

Harvesting

Dry Season· February–April

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 Elgeyo Marakwet

Elgeyo Marakwet's nitrogen reads 1.39 g/kg, but the rate stays at zero: Sweet Potato is not top-dressed, for the crop-specific reason above.

Seed varieties for Elgeyo Marakwet

Varieties suited to Elgeyo Marakwet's 1,800 m altitude and 1,000 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

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