Growing Cucumber in Garissa

Soil suitability analysis based on Garissa's nutrient profile

Garissa County is a challenging environment for Cucumber (soil-match score 14/100) and will need significant amendment before planting. At an average pH of 7.96 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 0.61 g/kg, P 37.7 mg/kg, K 407 mg/kg against this crop's high/medium/high demand — so the fertilizer plan below prioritises closing that deficit. Cucumber prefers loam soils, while Garissa is largely sandy, so drainage and organic-matter management matter more here. Garissa receives approximately 250 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 Garissa's 14/100 suitability a realistic target here is closer to 2,100 kg/acre (~KES 84,000/acre) unless the constraints above are addressed.

14Suitability score

Soil & climate match

FactorGarissa soilCucumber needsStatus
pH7.965.87Adjust
Nitrogen0.61 g/kgmin 1.2 g/kgLow
Phosphorus37.7 mg/kgmin 12 mg/kgOK
Potassium407 mg/kgmin 200 mg/kgOK
Rainfall250 mm500–1,200 mmLow
Altitude200 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 Garissa2,100 kg/acre
Estimated revenueKES 84,000/acre
Adjusted for Garissa's 14/100 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