Growing Pixie Oranges in Tana River

Soil suitability analysis based on Tana River's nutrient profile

Quick answer

Generally not ideal — Tana River is poorly suited to Pixie Oranges. Tana River's soil (pH 6.4, slightly acidic) gives Pixie Oranges a suitability score of 1/100. Match fertilizer to Tana River's nitrogen and phosphorus levels for the best result.

Tana River County is a challenging environment for Pixie Oranges (soil-match score 1/100) and will need significant amendment before planting. Local soils average pH 6.4 — slightly acidic to near-neutral and inside the 5.5–7.5 band Pixie Oranges prefers, so no lime is usually required. The main gap is phosphorus and potassium — measured at N 1.04 g/kg, P 8.5 mg/kg, K 108 mg/kg against this crop's medium/medium/high demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly sandy soils suit Pixie Oranges, which favours sandy loam. Tana River receives approximately 400 mm/year — well below Pixie Oranges's minimum of 600 mm — so supplemental irrigation would be essential for this crop. Pixie Oranges's full potential is about 8,000 kg/acre (~KES 224,000/acre at KES 28/kg), but at Tana River's 1/100 suitability a realistic target here is closer to 100 kg/acre (~KES 2,800/acre) unless the constraints above are addressed.

1Suitability score

Soil & climate match

FactorTana River soilPixie Oranges needsStatus
pH6.45.57.5OK
Nitrogen1.04 g/kgmin 0.8 g/kgOK
Phosphorus8.5 mg/kgmin 12 mg/kgLow
Potassium108 mg/kgmin 200 mg/kgLow
Rainfall400 mm600–1,200 mmLow
Altitude200 m1,000–2,000 mLow

Top dressing guide

Product
CAN
Timing
Biannual start of rains
Instruction
Apply in a ring around the drip line. Foliar zinc and manganese every season for fruit quality.
Bags per Acre
0.5

Recommended seed varieties

PixieMedium/Highland
KALRO/HCDA · 1000-1500 days · 7.2–10.8 tons/acre
Seedless; thin skin; excellent sweetness; high export demand.
Washington NavelMedium
KALRO · 1000-1500 days · 6.3–9 tons/acre
Large navel orange; seedless; good fresh market variety.

Economics

Market priceKES 28/kg
Expected yield in Tana River100 kg/acre
Estimated revenueKES 2,800/acre
Adjusted for Tana River's 1/100 suitability. Under ideal conditions Pixie Oranges can reach 8,000 kg/acre (~KES 224,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy Loam

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