Growing Potato in Kisumu

Soil suitability analysis based on Kisumu's nutrient profile

Quick answer

Possible but challenging — Kisumu is only marginally suited to Potato. Kisumu's soil (pH 5.54, slightly acidic) gives Potato a suitability score of 48/100. Match fertilizer to Kisumu's nitrogen and phosphorus levels for the best result.

Potato can be grown in Kisumu County, but the soil scores 48/100 and needs targeted management to reach full potential. Local soils average pH 5.54 — slightly acidic to near-neutral and inside the 4.8–6.5 band Potato prefers, so no lime is usually required. The main gap is nitrogen, phosphorus, and potassium — measured at N 0.91 g/kg, P 12.5 mg/kg, K 166 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. Potato prefers sandy loam soils, while Kisumu is largely clay, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Potato is the #88 soil match of the 106 crops we assess for Kisumu County. Potato's full potential is about 8,000 kg/acre (~KES 304,000/acre at KES 38/kg), but at Kisumu's 48/100 suitability a realistic target here is closer to 4,800 kg/acre (~KES 182,400/acre) unless the constraints above are addressed.

Better matched to Kisumu's soil: Cassava, Macadamia, and Pineapple — each scores higher on the same soil.

48Suitability score

Soil & climate match

FactorKisumu soilPotato needsStatus
pH5.544.86.5OK
Nitrogen0.91 g/kgmin 1.2 g/kgLow
Phosphorus12.5 mg/kgmin 20 mg/kgLow
Potassium166 mg/kgmin 200 mg/kgLow
Rainfall1,200 mm700–1,500 mmOK
Altitude1,150 m1,500–3,000 mLow

Planting calendar for Kisumu

Long Rains· MarchMayMain season here

March
Planting Tubers & Basal Fertilizer (NPK)
April
Earthing Up & Top Dressing (CAN)
May
Pest Control (Blight) & Weeding

Short Rains· SeptemberNovember

September
Planting & Basal Fertilizer
October
Earthing Up & Top Dressing
November
Blight Control

Dry Season· JanuaryMarch

January
Harvesting & Storage
February
Land Resting
March
Seed Tuber Sprouting

Top dressing guide

Product
CAN
Timing
Week 3–4 after emergence
Instruction
Apply when plants are 15–20cm tall, before earthing up
Bags per acre in Kisumu
1.251

Kisumu's nitrogen (0.91 g/kg) is 76% of the 1.2 g/kg Potato needs, so the standard 1 bag/acre is raised to 1.25. Split it across two applications to limit leaching.

Recommended seed varieties

No variety in our list is specifically rated for Kisumu's 1,150 m altitude and 1,200 mm rainfall, so all 14 are shown. Confirm with your agrovet before buying.

ShangiMedium/Highland
KALRO · 80-90 days · 300-350 bags/acre
Very fast cooking; high tuber density per plant.
UnicaDryland/Medium
KALRO · 90-100 days · 350-400 bags/acre
Heat tolerant; highly resistant to late blight.
TigoniHighland
KALRO · 90-100 days · 350-450 bags/acre
Late blight resistant; well adapted to cool highland conditions above 2000m.
AsanteMedium/Highland
KALRO · 85-95 days · 320-400 bags/acre
High yielding; good cooking quality; suited to medium altitude 1500-2000m.
Kenya FurahaMedium/Highland
KALRO · 90-100 days · 340-420 bags/acre
Good taste; disease tolerant; KEPHIS certified; consistent yield.
Kenya MpyaMedium/Highland
KALRO · 85-95 days · 300-380 bags/acre
New release; adapted to Central Kenya highlands; good storability.
Clone IG-70Highland
CIP/KALRO · 95-110 days · 380-460 bags/acre
Virus resistant; developed by CIP for highland Kenya; high dry matter content.
Dutch RobijnHighland
KARI-Tigoni · 90-100 days · 310-400 bags/acre
Classic highland variety released 1960s; high tuber uniformity; excellent crisping quality; tolerant to late blight; short dormancy.
Kenya BarakaHighland
KARI-Tigoni · 95-105 days · 280-320 bags/acre
Oblong/round tubers; resistant to late blight and viruses; good storability; table and chips use; released 1973.
SherekeaMedium/Highland
KARI/CIP · 90-105 days · 320-380 bags/acre
High yielding; good cooking quality; medium dormancy; suited to highlands 1400-3000m; released 2010.
LenanaHighland
CIP/KALRO · 90-105 days · 320-400 bags/acre
Late blight tolerant; PVX and PLRV tolerant; dry matter 22%; good for French fries; upper highlands; released 2017.
WanjikuHighland
CIP/KALRO · 100-120 days · 400-480 bags/acre
Extremely tolerant to PVY; late blight tolerant; dry matter 21%; French fries and crisps; 1800-3000m; released 2017.
NyotaHighland
CIP/KALRO · 90-105 days · 280-360 bags/acre
Late blight tolerant; heat tolerant; dry matter 20%; table variety; upper highlands; released 2017.
ChuluHighland
CIP/KALRO · 100-120 days · 280-360 bags/acre
Late blight and PVX tolerant; heat tolerant; dry matter 24%; table and processing; widely adapted; released 2017.

Economics

Market priceKES 38/kg
Expected yield in Kisumu4,800 kg/acre
Estimated revenueKES 182,400/acre
Adjusted for Kisumu's 48/100 suitability. Under ideal conditions Potato can reach 8,000 kg/acre (~KES 304,000/acre) — attainable here only after the climate and soil constraints below are addressed.

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