Growing Grapes in Nandi

Soil suitability analysis based on Nandi's nutrient profile

Nandi County is a solid choice for Grapes, with a soil-match score of 63/100. Local soils average pH 6.17 — slightly acidic to near-neutral and inside the 6–7.5 band Grapes prefers, so no lime is usually required. Nitrogen (1.37 g/kg), phosphorus (26.4 mg/kg) and potassium (207 mg/kg) all meet Grapes's requirements, so a maintenance fertilizer programme is enough. The county's predominantly clay loam soils suit Grapes, which favours loam. Grapes's full potential is about 8,000 kg/acre (~KES 1,200,000/acre at KES 150/kg), but at Nandi's 63/100 suitability a realistic target here is closer to 6,300 kg/acre (~KES 945,000/acre) unless the constraints above are addressed.

63Suitability score

Soil & climate match

FactorNandi soilGrapes needsStatus
pH6.1767.5OK
Nitrogen1.37 g/kgmin 0.8 g/kgOK
Phosphorus26.4 mg/kgmin 20 mg/kgOK
Potassium207 mg/kgmin 200 mg/kgOK
Rainfall1,400 mm500–1,000 mmHigh
Altitude1,900 m0–1,800 mHigh

Planting calendar

Long Rains

Month 1
Pruning & Bud Break & Basal
Month 2
Training & Top Dressing
Month 3
Fruit Set & Harvest

Short Rains

Month 1
Pruning & Bud Break
Month 2
Training & Top Dressing
Month 3
Fruit Set & Harvest

Top dressing guide

Product
CAN
Timing
At bud break and fruit set
Instruction
Add potassium at veraison for sugar and colour. Avoid late nitrogen.
Bags per Acre
0.5

Economics

Market priceKES 150/kg
Expected yield in Nandi6,300 kg/acre
Estimated revenueKES 945,000/acre
Adjusted for Nandi's 63/100 suitability. Under ideal conditions Grapes can reach 8,000 kg/acre (~KES 1,200,000/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(4,500)
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