Growing Grapes in Homa Bay

Soil suitability analysis based on Homa Bay's nutrient profile

Grapes can be grown in Homa Bay County, but the soil scores 58/100 and needs targeted management to reach full potential. At an average pH of 5.27 the soil is moderately acidic, below Grapes's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is phosphorus and potassium — measured at N 1.05 g/kg, P 13.8 mg/kg, K 147 mg/kg against this crop's medium/high/high demand — so the fertilizer plan below prioritises closing those deficits. 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 Homa Bay's 58/100 suitability a realistic target here is closer to 5,800 kg/acre (~KES 870,000/acre) unless the constraints above are addressed.

58Suitability score

Soil & climate match

FactorHoma Bay soilGrapes needsStatus
pH5.2767.5Adjust
Nitrogen1.05 g/kgmin 0.8 g/kgOK
Phosphorus13.8 mg/kgmin 20 mg/kgLow
Potassium147 mg/kgmin 200 mg/kgLow
Rainfall1,100 mm500–1,000 mmHigh
Altitude1,200 m0–1,800 mOK

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 Homa Bay5,800 kg/acre
Estimated revenueKES 870,000/acre
Adjusted for Homa Bay's 58/100 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