Growing Cucumber in Isiolo

Soil suitability analysis based on Isiolo's nutrient profile

Quick answer

Generally not ideal — Isiolo is poorly suited to Cucumber. Isiolo's soil (pH 7.83, alkaline) gives Cucumber a suitability score of 27/100. Match fertilizer to Isiolo's nitrogen and phosphorus levels for the best result.

Isiolo County is a challenging environment for Cucumber (soil-match score 27/100) and will need significant amendment before planting. At an average pH of 7.83 the soil sits above Cucumber's preferred 5.8–7 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.46 g/kg, P 37.4 mg/kg, K 395 mg/kg against this crop's high/medium/high demand — so the fertilizer plan below prioritises closing that deficit. Cucumber prefers loam soils, while Isiolo is largely sandy, so drainage and organic-matter management matter more here. Isiolo receives approximately 350 mm/year — well below Cucumber's minimum of 500 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Cucumber is the #39 soil match of the 106 crops we assess for Isiolo County. Cucumber's full potential is about 12,000 kg/acre (~KES 480,000/acre at KES 40/kg), but at Isiolo's 27/100 suitability a realistic target here is closer to 4,050 kg/acre (~KES 162,000/acre) unless the constraints above are addressed.

Better matched to Isiolo's soil: Sisal, Aloe Vera, and Green Grams — each scores higher on the same soil.

27Suitability score

Soil & climate match

FactorIsiolo soilCucumber needsStatus
pH7.835.87Adjust
Nitrogen0.46 g/kgmin 1.2 g/kgLow
Phosphorus37.4 mg/kgmin 12 mg/kgOK
Potassium395 mg/kgmin 200 mg/kgOK
Rainfall350 mm500–1,200 mmLow
Altitude900 m0–2,000 mOK

Planting calendar for Isiolo

Long Rains· MarchMay

March
Direct Sowing & Basal
April
Trellising & Top Dressing & Pest Control
May
Fruit Development & Harvest

Short Rains· OctoberDecemberMain season here

October
Direct Sowing & Basal
November
Trellising & Top Dressing
December
Harvest

Top dressing guide

Product
CAN
Timing
Week 3 and 5 then at flowering
Instruction
Add foliar potassium at fruiting for fruit size and quality.
Bags per acre in Isiolo
0.50.4

Isiolo's nitrogen (0.46 g/kg) is 38% of the 1.2 g/kg Cucumber needs, so the standard 0.4 bags/acre is raised to 0.5. Split it across two applications to limit leaching.

Economics

Market priceKES 40/kg
Expected yield in Isiolo4,050 kg/acre
Estimated revenueKES 162,000/acre
Adjusted for Isiolo's 27/100 suitability. Under ideal conditions Cucumber can reach 12,000 kg/acre (~KES 480,000/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