Growing Maize in Kwale

Soil suitability analysis based on Kwale's nutrient profile

Quick answer

Yes, with the right inputs — Kwale is moderately suited to Maize. Kwale's soil (pH 6.76, near-neutral) gives Maize a suitability score of 74/100. Match fertilizer to Kwale's nitrogen and phosphorus levels for the best result.

Kwale County is a solid choice for Maize, with a soil-match score of 74/100. Local soils average pH 6.76 — neutral and inside the 5.5–7 band Maize prefers, so no lime is usually required. The main gap is nitrogen, phosphorus, and potassium — measured at N 0.93 g/kg, P 9.8 mg/kg, K 131 mg/kg against this crop's high/high/medium demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly sandy loam soils suit Maize, which favours loam. On ShambaIQ's soil-match model, Maize is the #51 soil match of the 106 crops we assess for Kwale County. At current prices (about KES 45/kg) and a typical 1,800 kg/acre yield, a well-managed Maize crop here can gross roughly KES 81,000 per acre.

74Suitability score

Soil & climate match

FactorKwale soilMaize needsStatus
pH6.765.57OK
Nitrogen0.93 g/kgmin 1.2 g/kgLow
Phosphorus9.8 mg/kgmin 20 mg/kgLow
Potassium131 mg/kgmin 150 mg/kgLow
Rainfall900 mm500–1,600 mmOK
Altitude200 m0–2,500 mOK

Planting calendar for Kwale

Long Rains· AprilJuneMain season here

April
Sowing & Basal Fertilizer (DAP/NPK)
May
Top Dressing (CAN/Urea) & 1st Weeding
June
Crop Protection & Scouting

Short Rains· NovemberJanuary

November
Fast Sowing & Basal Fertilizer
December
Top Dressing & Weeding
January
Fast Growth Scouting

Dry Season· FebruaryApril

February
Land Preparation & Manure
March
Soil Testing & Resting
April
Seed Selection & Storage

Top dressing guide

Product
CAN
Timing
Week 4–6 after germination
Instruction
When plant is knee-high broadcast between rows
Bags per acre in Kwale
1.251

Kwale's nitrogen (0.93 g/kg) is 78% of the 1.2 g/kg Maize needs, so the standard 1 bag/acre is raised to 1.25. Split it across two applications to limit leaching.

Seed varieties for Kwale

Varieties suited to Kwale's 200 m altitude and 900 mm annual rainfall — 9 of 24 maize varieties we list.

Katumani Composite BDryland
KALRO · 90-120 days · 15-18 bags/acre
Highly drought-tolerant; ensures harvest in low rainfall.
DH04Dryland
KALRO · 90-110 days · 18-22 bags/acre
Extremely fast maturing; escapes late-season heat stress.
H516Lowland
Kenya Seed Company · 80-110 days · 13-22 bags/acre
Drought tolerant; MSV tolerant; suited for coastal and semi-arid lowlands below 1200m.
DH01Dryland
Kenya Seed Company · 90-120 days · 27-40 bags/acre
Drought tolerant; MSV tolerant; semi-arid adapted 0-1500m; good for low-input farmers.
DH02Dryland/Medium
Kenya Seed Company · 90-120 days · 27-40 bags/acre
MSV and GLS tolerant; drought tolerant; widely adapted to low-medium altitude 0-1500m.
DH03Dryland
Kenya Seed Company · 90-120 days · 13-22 bags/acre
Drought tolerant; tolerant to leaf diseases; suitable for dryland short second season.
Ukamez-2Dryland/Medium
KALRO · 90-110 days · 21-41 bags/acre
KEPHIS certified; drought tolerant; GLS and MSV resistant; dry mid altitude Eastern Kenya 800-1600m.
Ukamez-1Dryland
KALRO · 85-100 days · 18-22 bags/acre
KEPHIS certified; early maturing; drought tolerant; suited to ASALs in Eastern Kenya.
KH500-48ADryland/Medium
KALRO · 90-110 days · 20-25 bags/acre
KALRO open-pollinated hybrid; heat tolerant; widely adapted in eastern regions.

Economics

Market priceKES 45/kg
Expected yield in Kwale1,665 kg/acre
Estimated revenueKES 74,925/acre
Adjusted for Kwale's 74/100 suitability. Under ideal conditions Maize can reach 1,800 kg/acre (~KES 81,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureLoam

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