Growing Cucumber in Samburu

Soil suitability analysis based on Samburu's nutrient profile

Samburu County is a challenging environment for Cucumber (soil-match score 24/100) and will need significant amendment before planting. At an average pH of 8.28 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 0.67 g/kg, P 42.1 mg/kg, K 387 mg/kg against this crop's high/medium/high demand — so the fertilizer plan below prioritises closing that deficit. Cucumber prefers loam soils, while Samburu is largely sandy, so drainage and organic-matter management matter more here. Samburu receives approximately 350 mm/year — well below Cucumber's minimum of 500 mm — so supplemental irrigation would be essential for this crop. Cucumber's full potential is about 12,000 kg/acre (~KES 480,000/acre at KES 40/kg), but at Samburu's 24/100 suitability a realistic target here is closer to 3,600 kg/acre (~KES 144,000/acre) unless the constraints above are addressed.

24Suitability score

Soil & climate match

FactorSamburu soilCucumber needsStatus
pH8.285.87Adjust
Nitrogen0.67 g/kgmin 1.2 g/kgLow
Phosphorus42.1 mg/kgmin 12 mg/kgOK
Potassium387 mg/kgmin 200 mg/kgOK
Rainfall350 mm500–1,200 mmLow
Altitude900 m0–2,000 mOK

Planting calendar

Long Rains

Month 1
Direct Sowing & Basal
Month 2
Trellising & Top Dressing & Pest Control
Month 3
Fruit Development & Harvest

Short Rains

Month 1
Direct Sowing & Basal
Month 2
Trellising & Top Dressing
Month 3
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
0.4

Economics

Market priceKES 40/kg
Expected yield in Samburu3,600 kg/acre
Estimated revenueKES 144,000/acre
Adjusted for Samburu's 24/100 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(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