Growing Tree Tomato (Tamarillo) in Homa Bay

Soil suitability analysis based on Homa Bay's nutrient profile

Homa Bay County is a challenging environment for Tree Tomato (Tamarillo) (soil-match score 42/100) and will need significant amendment before planting. At an average pH of 5.27 the soil is moderately acidic, below Tree Tomato (Tamarillo)'s preferred 5.8–7 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is nitrogen, phosphorus, and potassium — measured at N 1.05 g/kg, P 13.8 mg/kg, K 147 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. The county's predominantly clay loam soils suit Tree Tomato (Tamarillo), which favours loam. Tree Tomato (Tamarillo)'s full potential is about 8,000 kg/acre (~KES 640,000/acre at KES 80/kg), but at Homa Bay's 42/100 suitability a realistic target here is closer to 4,200 kg/acre (~KES 336,000/acre) unless the constraints above are addressed.

42Suitability score

Soil & climate match

FactorHoma Bay soilTree Tomato (Tamarillo) needsStatus
pH5.275.87Adjust
Nitrogen1.05 g/kgmin 1.2 g/kgLow
Phosphorus13.8 mg/kgmin 20 mg/kgLow
Potassium147 mg/kgmin 200 mg/kgLow
Rainfall1,100 mm800–1,800 mmOK
Altitude1,200 m1,500–2,800 mLow

Planting calendar

Long Rains

Month 1
Transplanting & Basal
Month 2
Staking & Top Dressing
Month 3
Fruit Development

Short Rains

Month 1
Transplanting & Basal
Month 2
Staking & Top Dressing
Month 3
Fruit Development

Top dressing guide

Product
CAN
Timing
Every 3 months
Instruction
Perennial — ring-apply around the drip line each quarter. Add NPK at flowering.
Bags per Acre
0.5

Economics

Market priceKES 80/kg
Expected yield in Homa Bay4,200 kg/acre
Estimated revenueKES 336,000/acre
Adjusted for Homa Bay's 42/100 suitability. Under ideal conditions Tree Tomato (Tamarillo) can reach 8,000 kg/acre (~KES 640,000/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