Growing Tree Tomato (Tamarillo) in Busia
Soil suitability analysis based on Busia's nutrient profile
Busia County is a challenging environment for Tree Tomato (Tamarillo) (soil-match score 44/100) and will need significant amendment before planting. At an average pH of 5.29 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 0.91 g/kg, P 16.6 mg/kg, K 175 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 Busia's 44/100 suitability a realistic target here is closer to 4,400 kg/acre (~KES 352,000/acre) unless the constraints above are addressed.
Soil & climate match
| Factor | Busia soil | Tree Tomato (Tamarillo) needs | Status |
|---|---|---|---|
| pH | 5.29 | 5.8–7 | Adjust |
| Nitrogen | 0.91 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 16.6 mg/kg | min 20 mg/kg | Low |
| Potassium | 175 mg/kg | min 200 mg/kg | Low |
| Rainfall | 1,400 mm | 800–1,800 mm | OK |
| Altitude | 1,200 m | 1,500–2,800 m | Low |
Planting calendar
Long Rains
Short Rains
Top dressing guide
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag