Growing Oilseed Rape (Canola) in Trans Nzoia

Soil suitability analysis based on Trans Nzoia's nutrient profile

Quick answer

Yes, with the right inputs — Trans Nzoia is moderately suited to Oilseed Rape (Canola). Trans Nzoia's soil (pH 5.93, slightly acidic) gives Oilseed Rape (Canola) a suitability score of 71/100. Match fertilizer to Trans Nzoia's nitrogen and phosphorus levels for the best result.

Trans Nzoia County is a solid choice for Oilseed Rape (Canola), with a soil-match score of 71/100. Local soils average pH 5.93 — slightly acidic to near-neutral and inside the 5.8–7.5 band Oilseed Rape (Canola) prefers, so no lime is usually required. Nitrogen (1.68 g/kg), phosphorus (27.3 mg/kg) and potassium (213 mg/kg) all meet Oilseed Rape (Canola)'s requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Oilseed Rape (Canola), which favours loam. On ShambaIQ's soil-match model, Oilseed Rape (Canola) is the #68 soil match of the 106 crops we assess for Trans Nzoia County. Oilseed Rape (Canola)'s full potential is about 1,000 kg/acre (~KES 60,000/acre at KES 60/kg), but at Trans Nzoia's 71/100 suitability a realistic target here is closer to 888 kg/acre (~KES 53,280/acre) unless the constraints above are addressed.

71Suitability score

Soil & climate match

FactorTrans Nzoia soilOilseed Rape (Canola) needsStatus
pH5.935.87.5OK
Nitrogen1.68 g/kgmin 1.2 g/kgOK
Phosphorus27.3 mg/kgmin 20 mg/kgOK
Potassium213 mg/kgmin 150 mg/kgOK
Rainfall1,200 mm400–900 mmHigh
Altitude1,900 m1,500–2,800 mOK

Planting calendar for Trans Nzoia

Long Rains· MarchMayMain season here

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

Short Rains· AugustOctober

August
Land Prep & Sowing & Basal
September
Top Dressing & Weeding
October
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 Trans Nzoia
0.5

Trans Nzoia's nitrogen (1.68 g/kg) already meets Oilseed Rape (Canola)'s 1.2 g/kg requirement, so this is a maintenance rate.

Economics

Market priceKES 60/kg
Expected yield in Trans Nzoia888 kg/acre
Estimated revenueKES 53,280/acre
Adjusted for Trans Nzoia's 71/100 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