Growing Maize in Lamu

Soil suitability analysis based on Lamu's nutrient profile

Quick answer

Yes — Lamu is well suited to Maize. Lamu's soil (pH 6.31, slightly acidic) gives Maize a suitability score of 75/100. Match fertilizer to Lamu's nitrogen and phosphorus levels for the best result.

Lamu County is well suited to Maize, scoring 75/100 on ShambaIQ's soil-match model. Local soils average pH 6.31 — slightly acidic to near-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 0.74 g/kg, P 9.6 mg/kg, K 117 mg/kg against this crop's high/high/medium demand — so the fertilizer plan below prioritises closing those deficits. Maize prefers loam soils, while Lamu is largely sandy, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Maize is the #38 soil match of the 106 crops we assess for Lamu 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.

75Suitability score

Soil & climate match

FactorLamu soilMaize needsStatus
pH6.315.5–7OK
Nitrogen0.74 g/kgmin 1.2 g/kgLow
Phosphorus9.6 mg/kgmin 20 mg/kgLow
Potassium117 mg/kgmin 150 mg/kgLow
Rainfall600 mm500–1,600 mmOK
Altitude10 m0–2,500 mOK

Planting calendar for Lamu

Long Rains· April–JuneMain season here

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

Short Rains· November–January

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

Dry Season· February–April

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 Lamu
1.51

Lamu's nitrogen (0.74 g/kg) is 62% of the 1.2 g/kg Maize needs, so the standard 1 bag/acre is raised to 1.5. Split it across two applications to limit leaching.

Seed varieties for Lamu

9 maize varieties are rated for Lamu's altitude (10 m) and rainfall (600 mm):

Katumani Composite B· DrylandDH04· DrylandH516· LowlandDH01· DrylandDH02· Dryland/MediumDH03· DrylandUkamez-2· Dryland/MediumUkamez-1· DrylandKH500-48A· Dryland/Medium
Full variety details — maturity, yield & breeder →

Economics

Market priceKES 45/kg
Expected yield in Lamu1,688 kg/acre
Estimated revenueKES 75,960/acre
Adjusted for Lamu's 75/100 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