Growing Groundnuts in Mandera

Soil suitability analysis based on Mandera's nutrient profile

Quick answer

Generally not ideal — Mandera is poorly suited to Groundnuts. Mandera's soil (pH 8.38, alkaline) gives Groundnuts a suitability score of 7/100. Match fertilizer to Mandera's nitrogen and phosphorus levels for the best result.

Mandera County is a challenging environment for Groundnuts (soil-match score 7/100) and will need significant amendment before planting. At an average pH of 8.38 the soil sits above Groundnuts's preferred 5–7 range, which can limit uptake of phosphorus and micronutrients. Nitrogen (0.53 g/kg), phosphorus (38.3 mg/kg) and potassium (420 mg/kg) all meet Groundnuts's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy soils suit Groundnuts, which favours sandy. Mandera receives approximately 180 mm/year — well below Groundnuts's minimum of 500 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Groundnuts is the #19 soil match of the 106 crops we assess for Mandera County. Groundnuts's full potential is about 500 kg/acre (~KES 45,000/acre at KES 90/kg), but at Mandera's 7/100 suitability a realistic target here is closer to 44 kg/acre (~KES 3,960/acre) unless the constraints above are addressed.

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

7Suitability score

Soil & climate match

FactorMandera soilGroundnuts needsStatus
pH8.3857Adjust
Nitrogen0.53 g/kgmin 0.5 g/kgOK
Phosphorus38.3 mg/kgmin 12 mg/kgOK
Potassium420 mg/kgmin 150 mg/kgOK
Rainfall180 mm500–1,400 mmLow
Altitude250 m0–1,800 mOK

Top dressing guide

Product
None
Timing
None required
Instruction
Groundnuts fix their own Nitrogen. Apply gypsum at pegging for calcium.
Bags per Acre
0

Recommended seed varieties

ICGV-SM 99568Dryland/Medium
ICRISAT/KALRO · 90-100 days · 8-12 bags/acre
Rosette virus resistant; high oil content.
Red ValenciaDryland
Local/KALRO · 100-110 days · 6-10 bags/acre
Popular local market variety; good taste.

Economics

Market priceKES 90/kg
Expected yield in Mandera44 kg/acre
Estimated revenueKES 3,960/acre
Adjusted for Mandera's 7/100 suitability. Under ideal conditions Groundnuts can reach 500 kg/acre (~KES 45,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy

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