Growing Cassava in Nandi

Soil suitability analysis based on Nandi's nutrient profile

Quick answer

Possible but challenging — Nandi is only marginally suited to Cassava. Nandi's soil (pH 6.17, slightly acidic) gives Cassava a suitability score of 49/100. Match fertilizer to Nandi's nitrogen and phosphorus levels for the best result.

Cassava can be grown in Nandi County, but the soil scores 49/100 and needs targeted management to reach full potential. Local soils average pH 6.17 — slightly acidic to near-neutral and inside the 4.5–7 band Cassava prefers, so no lime is usually required. Nitrogen (1.37 g/kg), phosphorus (26.4 mg/kg) and potassium (207 mg/kg) all meet Cassava's requirements, so a maintenance fertilizer programme is enough. Cassava prefers sandy soils, while Nandi is largely clay loam, so drainage and organic-matter management matter more here. At 1900 m, the county sits above Cassava's preferred altitude ceiling of 1400 m, where frost risk and cold nights reduce the crop's productivity. On ShambaIQ's soil-match model, Cassava is the #84 soil match of the 106 crops we assess for Nandi County. Cassava's full potential is about 6,000 kg/acre (~KES 90,000/acre at KES 15/kg), but at Nandi's 49/100 suitability a realistic target here is closer to 3,675 kg/acre (~KES 55,125/acre) unless the constraints above are addressed.

Better matched to Nandi's soil: Garden Peas, Maize, and Kale (Sukuma Wiki) — each scores higher on the same soil.

49Suitability score

Soil & climate match

FactorNandi soilCassava needsStatus
pH6.174.57OK
Nitrogen1.37 g/kgmin 0.5 g/kgOK
Phosphorus26.4 mg/kgmin 6 mg/kgOK
Potassium207 mg/kgmin 150 mg/kgOK
Rainfall1,400 mm500–1,500 mmOK
Altitude1,900 m0–1,400 mHigh

Planting calendar for Nandi

Long Rains· MarchMayMain season here

March
Stem Cutting Planting
April
Weeding & Pest Monitoring
May
Growth Monitoring

Short Rains· AugustOctober

August
Weeding & Mound Formation
September
Pest & Disease Scouting
October
Growth Monitoring

Dry Season· JanuaryMarch

January
Harvesting (12+ months from planting)
February
Processing & Storage
March
Land Preparation for next crop

Top dressing guide

Product
None
Timing
None required
Instruction
Cassava is low-input. Excessive N causes leafy growth at expense of tubers.
Bags per acre in Nandi
0

Nandi's nitrogen reads 1.37 g/kg, but the rate stays at zero: Cassava is not top-dressed, for the crop-specific reason above.

Seed varieties for Nandi

Varieties suited to Nandi's 1,900 m altitude and 1,400 mm annual rainfall — 1 of 2 cassava varieties we list.

ShibeCoastal/Medium
KALRO · 270-330 days · 3–5 tons/acre
Sweet variety; low cyanide content; good for table use.

Economics

Market priceKES 15/kg
Expected yield in Nandi3,675 kg/acre
Estimated revenueKES 55,125/acre
Adjusted for Nandi's 49/100 suitability. Under ideal conditions Cassava can reach 6,000 kg/acre (~KES 90,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy

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