Growing Cashew Nuts in Kajiado

Soil suitability analysis based on Kajiado's nutrient profile

Quick answer

Generally not ideal — Kajiado is poorly suited to Cashew Nuts. Kajiado's soil (pH 6.55, near-neutral) gives Cashew Nuts a suitability score of 9/100. Match fertilizer to Kajiado's nitrogen and phosphorus levels for the best result.

Kajiado County is a challenging environment for Cashew Nuts (soil-match score 9/100) and will need significant amendment before planting. Local soils average pH 6.55 — neutral and inside the 5–7.5 band Cashew Nuts prefers, so no lime is usually required. Nitrogen (0.97 g/kg), phosphorus (20.6 mg/kg) and potassium (257 mg/kg) all meet Cashew Nuts's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Cashew Nuts, which favours sandy. At 1300 m, the county sits above Cashew Nuts's preferred altitude ceiling of 500 m, where frost risk and cold nights reduce the crop's productivity. Cashew Nuts's full potential is about 900 kg/acre (~KES 247,500/acre at KES 275/kg), but at Kajiado's 9/100 suitability a realistic target here is closer to 101 kg/acre (~KES 27,775/acre) unless the constraints above are addressed.

9Suitability score

Soil & climate match

FactorKajiado soilCashew Nuts needsStatus
pH6.5557.5OK
Nitrogen0.97 g/kgmin 0.5 g/kgOK
Phosphorus20.6 mg/kgmin 6 mg/kgOK
Potassium257 mg/kgmin 150 mg/kgOK
Rainfall500 mm600–1,500 mmLow
Altitude1,300 m0–500 mHigh

Top dressing guide

Product
CAN
Timing
Start of rains biannual
Instruction
Apply in a ring around the drip line. Young trees need less — scale up as canopy develops.
Bags per Acre
0.3

Recommended seed varieties

Giriama RedCoastal
KALRO · 1000-1500 days · 500–750 kg/acre
High nut recovery; suited to coast conditions; good kernel quality.
MurukuCoastal/Dryland
KALRO · 1000-1500 days · 400–600 kg/acre
Early bearing; good shell weight; tolerant to powdery mildew.

Economics

Market priceKES 275/kg
Expected yield in Kajiado101 kg/acre
Estimated revenueKES 27,775/acre
Adjusted for Kajiado's 9/100 suitability. Under ideal conditions Cashew Nuts can reach 900 kg/acre (~KES 247,500/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(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