Growing Okra in Garissa

Soil suitability analysis based on Garissa's nutrient profile

Garissa County is a challenging environment for Okra (soil-match score 17/100) and will need significant amendment before planting. At an average pH of 7.96 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 0.61 g/kg, P 37.7 mg/kg, K 407 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. Okra 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 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 Garissa's 17/100 suitability a realistic target here is closer to 1,063 kg/acre (~KES 63,780/acre) unless the constraints above are addressed.

17Suitability score

Soil & climate match

FactorGarissa soilOkra needsStatus
pH7.9667.5Adjust
Nitrogen0.61 g/kgmin 0.8 g/kgLow
Phosphorus37.7 mg/kgmin 12 mg/kgOK
Potassium407 mg/kgmin 150 mg/kgOK
Rainfall250 mm500–1,200 mmLow
Altitude200 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 Garissa1,063 kg/acre
Estimated revenueKES 63,780/acre
Adjusted for Garissa's 17/100 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