Growing Tangerine in Kakamega

Soil suitability analysis based on Kakamega's nutrient profile

Quick answer

Possible but challenging — Kakamega is only marginally suited to Tangerine. Kakamega's soil (pH 5.63, slightly acidic) gives Tangerine a suitability score of 47/100. Match fertilizer to Kakamega's nitrogen and phosphorus levels for the best result.

Tangerine can be grown in Kakamega County, but the soil scores 47/100 and needs targeted management to reach full potential. At an average pH of 5.63 the soil is slightly acidic to near-neutral, below Tangerine's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen, phosphorus, and potassium — measured at N 1.01 g/kg, P 14 mg/kg, K 147 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly clay loam soils suit Tangerine, which favours loam. On ShambaIQ's soil-match model, Tangerine is the #70 soil match of the 106 crops we assess for Kakamega County. Tangerine's full potential is about 10,000 kg/acre (~KES 600,000/acre at KES 60/kg), but at Kakamega's 47/100 suitability a realistic target here is closer to 5,875 kg/acre (~KES 352,500/acre) unless the constraints above are addressed.

Better matched to Kakamega's soil: Soybeans, Rice (Lowland/Paddy), and Sweet Potato — each scores higher on the same soil.

47Suitability score

Soil & climate match

FactorKakamega soilTangerine needsStatus
pH5.6367.5Adjust
Nitrogen1.01 g/kgmin 1.2 g/kgLow
Phosphorus14 mg/kgmin 20 mg/kgLow
Potassium147 mg/kgmin 200 mg/kgLow
Rainfall1,900 mm600–1,200 mmHigh
Altitude1,500 m0–2,100 mOK

Planting calendar for Kakamega

Long Rains· MarchMayMain season here

March
Transplanting & Basal
April
Pruning & Top Dressing
May
Flowering & Fruit Set

Short Rains· AugustOctober

August
Transplanting & Basal
September
Pruning & Top Dressing
October
Fruit Development

Top dressing guide

Product
CAN
Timing
Three times per year
Instruction
Split feeding around the drip line; foliar zinc for leaf and fruit quality.
Bags per acre in Kakamega
0.750.6

Kakamega's nitrogen (1.01 g/kg) is 84% of the 1.2 g/kg Tangerine needs, so the standard 0.6 bags/acre is raised to 0.75. Split it across two applications to limit leaching.

Economics

Market priceKES 60/kg
Expected yield in Kakamega5,875 kg/acre
Estimated revenueKES 352,500/acre
Adjusted for Kakamega's 47/100 suitability. Under ideal conditions Tangerine can reach 10,000 kg/acre (~KES 600,000/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(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