Growing Grapes in Makueni

Soil suitability analysis based on Makueni's nutrient profile

Quick answer

Yes — Makueni is well suited to Grapes. Makueni's soil (pH 7.5, alkaline) gives Grapes a suitability score of 81/100. Match fertilizer to Makueni's nitrogen and phosphorus levels for the best result.

Makueni County is well suited to Grapes, scoring 81/100 on ShambaIQ's soil-match model. Local soils average pH 7.5 — alkaline and inside the 6–7.5 band Grapes prefers, so no lime is usually required. Nitrogen (0.86 g/kg), phosphorus (29.6 mg/kg) and potassium (351 mg/kg) all meet Grapes's requirements, so a maintenance fertilizer programme is enough. The county's predominantly sandy loam soils suit Grapes, which favours loam. On ShambaIQ's soil-match model, Grapes is the #16 soil match of the 106 crops we assess for Makueni County. At current prices (about KES 150/kg) and a typical 8,000 kg/acre yield, a well-managed Grapes crop here can gross roughly KES 1,200,000 per acre.

81Suitability score

Soil & climate match

FactorMakueni soilGrapes needsStatus
pH7.567.5OK
Nitrogen0.86 g/kgmin 0.8 g/kgOK
Phosphorus29.6 mg/kgmin 20 mg/kgOK
Potassium351 mg/kgmin 200 mg/kgOK
Rainfall600 mm500–1,000 mmOK
Altitude1,000 m0–1,800 mOK

Planting calendar for Makueni

Long Rains· MarchMay

March
Pruning & Bud Break & Basal
April
Training & Top Dressing
May
Fruit Set & Harvest

Short Rains· OctoberDecemberMain season here

October
Pruning & Bud Break
November
Training & Top Dressing
December
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 in Makueni
0.5

Makueni's nitrogen (0.86 g/kg) already meets Grapes's 0.8 g/kg requirement, so this is a maintenance rate.

Economics

Market priceKES 150/kg
Expected yield 8,000 kg/acre
Estimated revenueKES 1,200,000/acre

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