Growing Oilseed Rape (Canola) in Taita Taveta

Soil suitability analysis based on Taita Taveta's nutrient profile

Quick answer

Generally not ideal — Taita Taveta is poorly suited to Oilseed Rape (Canola). Taita Taveta's soil (pH 6.64, near-neutral) gives Oilseed Rape (Canola) a suitability score of 18/100. Match fertilizer to Taita Taveta's nitrogen and phosphorus levels for the best result.

Taita Taveta County is a challenging environment for Oilseed Rape (Canola) (soil-match score 18/100) and will need significant amendment before planting. Local soils average pH 6.64 — neutral and inside the 5.8–7.5 band Oilseed Rape (Canola) prefers, so no lime is usually required. The main gap is nitrogen, phosphorus, and potassium — measured at N 0.97 g/kg, P 12.9 mg/kg, K 104 mg/kg against this crop's high/high/medium demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly loam soils suit Oilseed Rape (Canola), which favours loam. At 700 m, the county sits below Oilseed Rape (Canola)'s preferred altitude range (1500–2800 m), which limits yield potential due to heat stress. On ShambaIQ's soil-match model, Oilseed Rape (Canola) is the #79 soil match of the 106 crops we assess for Taita Taveta County. Oilseed Rape (Canola)'s full potential is about 1,000 kg/acre (~KES 60,000/acre at KES 60/kg), but at Taita Taveta's 18/100 suitability a realistic target here is closer to 225 kg/acre (~KES 13,500/acre) unless the constraints above are addressed.

Better matched to Taita Taveta's soil: Sorghum, Cowpeas, and Pigeon Peas — each scores higher on the same soil.

18Suitability score

Soil & climate match

FactorTaita Taveta soilOilseed Rape (Canola) needsStatus
pH6.645.87.5OK
Nitrogen0.97 g/kgmin 1.2 g/kgLow
Phosphorus12.9 mg/kgmin 20 mg/kgLow
Potassium104 mg/kgmin 150 mg/kgLow
Rainfall500 mm400–900 mmOK
Altitude700 m1,500–2,800 mLow

Planting calendar for Taita Taveta

Long Rains· AprilJuneMain season here

April
Land Prep & Sowing & Basal
May
Top Dressing & Weeding
June
Flowering & Pod Fill & Harvest

Short Rains· NovemberJanuary

November
Land Prep & Sowing & Basal
December
Top Dressing & Weeding
January
Flowering & Pod Fill & Harvest

Top dressing guide

Product
CAN
Timing
Week 4 and at stem elongation
Instruction
Sulfur-demanding — prefer Ammonium Sulphate. Add boron at flowering for pod set.
Bags per acre in Taita Taveta
0.750.5

Taita Taveta's nitrogen (0.97 g/kg) is 81% of the 1.2 g/kg Oilseed Rape (Canola) needs, so the standard 0.5 bags/acre is raised to 0.75. Split it across two applications to limit leaching.

Economics

Market priceKES 60/kg
Expected yield in Taita Taveta225 kg/acre
Estimated revenueKES 13,500/acre
Adjusted for Taita Taveta's 18/100 suitability. Under ideal conditions Oilseed Rape (Canola) can reach 1,000 kg/acre (~KES 60,000/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