Growing Okra in Samburu

Soil suitability analysis based on Samburu's nutrient profile

Samburu County is a challenging environment for Okra (soil-match score 29/100) and will need significant amendment before planting. At an average pH of 8.28 the soil sits above Okra's preferred 6–7.5 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 medium/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. Okra 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 Okra's minimum of 500 mm — so supplemental irrigation would be essential for this crop. Okra's full potential is about 5,000 kg/acre (~KES 300,000/acre at KES 60/kg), but at Samburu's 29/100 suitability a realistic target here is closer to 1,813 kg/acre (~KES 108,780/acre) unless the constraints above are addressed.

29Suitability score

Soil & climate match

FactorSamburu soilOkra needsStatus
pH8.2867.5Adjust
Nitrogen0.67 g/kgmin 0.8 g/kgLow
Phosphorus42.1 mg/kgmin 12 mg/kgOK
Potassium387 mg/kgmin 150 mg/kgOK
Rainfall350 mm500–1,200 mmLow
Altitude900 m0–1,300 mOK

Planting calendar

Long Rains

Month 1
Direct Sowing & Basal
Month 2
Top Dressing & Pest Control
Month 3
Continuous Harvest

Short Rains

Month 1
Direct Sowing & Basal
Month 2
Top Dressing
Month 3
Continuous Harvest

Top dressing guide

Product
CAN
Timing
Week 3 and 6
Instruction
Top-dress lightly — excess nitrogen delays pod set.
Bags per Acre
0.4

Economics

Market priceKES 60/kg
Expected yield in Samburu1,813 kg/acre
Estimated revenueKES 108,780/acre
Adjusted for Samburu's 29/100 suitability. Under ideal conditions Okra can reach 5,000 kg/acre (~KES 300,000/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