Growing Taro (Nduma) in Taita Taveta

Soil suitability analysis based on Taita Taveta's nutrient profile

Quick answer

Generally not ideal — Taita Taveta is poorly suited to Taro (Nduma). Taita Taveta's soil (pH 6.64, near-neutral) gives Taro (Nduma) a suitability score of 21/100. Match fertilizer to Taita Taveta's nitrogen and phosphorus levels for the best result.

Taita Taveta County is a challenging environment for Taro (Nduma) (soil-match score 21/100) and will need significant amendment before planting. At an average pH of 6.64 the soil sits above Taro (Nduma)'s preferred 5.5–6.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is potassium — measured at N 0.97 g/kg, P 12.9 mg/kg, K 104 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly loam soils suit Taro (Nduma), which favours loam. Taita Taveta receives approximately 500 mm/year — well below Taro (Nduma)'s minimum of 1000 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Taro (Nduma) is the #73 soil match of the 106 crops we assess for Taita Taveta County. Taro (Nduma)'s full potential is about 7,000 kg/acre (~KES 630,000/acre at KES 90/kg), but at Taita Taveta's 21/100 suitability a realistic target here is closer to 1,838 kg/acre (~KES 165,420/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.

21Suitability score

Soil & climate match

FactorTaita Taveta soilTaro (Nduma) needsStatus
pH6.645.56.5Adjust
Nitrogen0.97 g/kgmin 0.8 g/kgOK
Phosphorus12.9 mg/kgmin 12 mg/kgOK
Potassium104 mg/kgmin 150 mg/kgLow
Rainfall500 mm1,000–1,500 mmLow
Altitude700 m0–1,850 mOK

Recommended seed varieties

Nduma LocalMedium/Highland 0-1850m
KALRO · 270-365 days · 2.5–4 tons/acre
Traditional variety; good corm size; suited to wet/valley bottoms.

Economics

Market priceKES 90/kg
Expected yield in Taita Taveta1,838 kg/acre
Estimated revenueKES 165,420/acre
Adjusted for Taita Taveta's 21/100 suitability. Under ideal conditions Taro (Nduma) can reach 7,000 kg/acre (~KES 630,000/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