Growing Leek in Meru

Soil suitability analysis based on Meru's nutrient profile

Leek can be grown in Meru County, but the soil scores 56/100 and needs targeted management to reach full potential. At an average pH of 4.88 the soil is strongly acidic, below Leek's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.22 g/kg), phosphorus (20.3 mg/kg) and potassium (218 mg/kg) all meet Leek's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Leek, which favours loam. Leek's full potential is about 10,000 kg/acre (~KES 600,000/acre at KES 60/kg), but at Meru's 56/100 suitability a realistic target here is closer to 7,000 kg/acre (~KES 420,000/acre) unless the constraints above are addressed.

56Suitability score

Soil & climate match

FactorMeru soilLeek needsStatus
pH4.8867.5Adjust
Nitrogen1.22 g/kgmin 1.2 g/kgOK
Phosphorus20.3 mg/kgmin 12 mg/kgOK
Potassium218 mg/kgmin 200 mg/kgOK
Rainfall1,400 mm600–1,200 mmHigh
Altitude1,500 m800–2,500 mOK

Planting calendar

Long Rains

Month 1
Nursery & Transplanting & Basal
Month 2
Earthing Up & Top Dressing
Month 3
Blanching & Harvest

Short Rains

Month 1
Nursery & Transplanting & Basal
Month 2
Earthing Up & Top Dressing
Month 3
Blanching & Harvest

Top dressing guide

Product
CAN
Timing
Week 4 and week 8
Instruction
Earth up and top-dress to blanch the stems. Steady nitrogen for length.
Bags per Acre
0.4

Economics

Market priceKES 60/kg
Expected yield in Meru7,000 kg/acre
Estimated revenueKES 420,000/acre
Adjusted for Meru's 56/100 suitability. Under ideal conditions Leek can reach 10,000 kg/acre (~KES 600,000/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(4,500)
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