Growing Chia 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 Chia. Trans Nzoia's soil (pH 5.93, slightly acidic) gives Chia a suitability score of 58/100. Match fertilizer to Trans Nzoia's nitrogen and phosphorus levels for the best result.

Chia can be grown in Trans Nzoia County, but the soil scores 58/100 and needs targeted management to reach full potential. At an average pH of 5.93 the soil is slightly acidic to near-neutral, below Chia's preferred 6–8 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. Nitrogen (1.68 g/kg), phosphorus (27.3 mg/kg) and potassium (213 mg/kg) all meet Chia's requirements, so a maintenance fertilizer programme is enough. Chia prefers sandy loam soils, while Trans Nzoia is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Chia is the #80 soil match of the 106 crops we assess for Trans Nzoia County. Chia's full potential is about 400 kg/acre (~KES 60,000/acre at KES 150/kg), but at Trans Nzoia's 58/100 suitability a realistic target here is closer to 290 kg/acre (~KES 43,500/acre) unless the constraints above are addressed.

Better matched to Trans Nzoia's soil: Kale (Sukuma Wiki), Finger Millet, and Sweet Potato — each scores higher on the same soil.

58Suitability score

Soil & climate match

FactorTrans Nzoia soilChia needsStatus
pH5.9368Adjust
Nitrogen1.68 g/kgmin 0.5 g/kgOK
Phosphorus27.3 mg/kgmin 12 mg/kgOK
Potassium213 mg/kgmin 100 mg/kgOK
Rainfall1,200 mm300–800 mmHigh
Altitude1,900 m1,000–2,200 mOK

Planting calendar for Trans Nzoia

Long Rains· MarchMayMain season here

March
Land Prep & Sowing
April
Thinning & Top Dressing
May
Flowering & Harvest

Short Rains· AugustOctober

August
Land Prep & Sowing
September
Thinning & Top Dressing
October
Flowering & Harvest

Top dressing guide

Product
CAN
Timing
Week 4
Instruction
Light feeder — a small top-dress at branching. Excess nitrogen causes lodging.
Bags per acre in Trans Nzoia
0.250.2

Trans Nzoia's nitrogen (1.68 g/kg) already meets Chia's 0.5 g/kg requirement, so this is a maintenance rate.

Economics

Market priceKES 150/kg
Expected yield in Trans Nzoia290 kg/acre
Estimated revenueKES 43,500/acre
Adjusted for Trans Nzoia's 58/100 suitability. Under ideal conditions Chia can reach 400 kg/acre (~KES 60,000/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(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