Growing Carrot in Nyandarua

Soil suitability analysis based on Nyandarua's nutrient profile

Quick answer

Yes — Nyandarua is well suited to Carrot. Nyandarua's soil (pH 5.38, strongly acidic) gives Carrot a suitability score of 80/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Nyandarua County is well suited to Carrot, scoring 80/100 on ShambaIQ's soil-match model. At an average pH of 5.38 the soil is moderately acidic, below Carrot's preferred 5.5–7 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is potassium — measured at N 1.28 g/kg, P 14 mg/kg, K 166 mg/kg against this crop's low/medium/high demand — so the fertilizer plan below prioritises closing that deficit. Carrot prefers sandy loam soils, while Nyandarua is largely clay, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Carrot is the #10 soil match of the 106 crops we assess for Nyandarua County. At current prices (about KES 38/kg) and a typical 10,000 kg/acre yield, a well-managed Carrot crop here can gross roughly KES 380,000 per acre.

80Suitability score

Soil & climate match

FactorNyandarua soilCarrot needsStatus
pH5.385.57Adjust
Nitrogen1.28 g/kgmin 0.5 g/kgOK
Phosphorus14 mg/kgmin 12 mg/kgOK
Potassium166 mg/kgmin 200 mg/kgLow
Rainfall1,100 mm600–1,200 mmOK
Altitude2,300 m1,000–2,500 mOK

Top dressing guide

Product
CAN
Timing
Week 4-5 after sowing
Instruction
Apply at thinning stage when roots begin swelling. Avoid over-application — causes forked roots.
Bags per acre in Nyandarua
0.5

Nyandarua's nitrogen (1.28 g/kg) already meets Carrot's 0.5 g/kg requirement, so this is a maintenance rate.

Seed varieties for Nyandarua

Varieties suited to Nyandarua's 2,300 m altitude and 1,100 mm annual rainfall — 1 of 2 carrot varieties we list.

NantesMedium/Highland
Simlaw Seeds · 70-80 days · 4–5 tons/acre
Cylindrical roots; sweet flavor; excellent fresh market variety.

Economics

Market priceKES 38/kg
Expected yield 10,000 kg/acre
Estimated revenueKES 380,000/acre

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