Growing Pawpaw in Turkana
Soil suitability analysis based on Turkana's nutrient profile
Generally not ideal — Turkana is poorly suited to Pawpaw. Turkana's soil (pH 7.95, alkaline) gives Pawpaw a suitability score of 14/100. Match fertilizer to Turkana's nitrogen and phosphorus levels for the best result.
Turkana County is a challenging environment for Pawpaw (soil-match score 14/100) and will need significant amendment before planting. At an average pH of 7.95 the soil sits above Pawpaw's preferred 6–7.5 range, which can limit uptake of phosphorus and micronutrients. The main gap is nitrogen — measured at N 0.41 g/kg, P 38.5 mg/kg, K 417 mg/kg against this crop's high/medium/high demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy soils suit Pawpaw, which favours sandy loam. Turkana receives approximately 300 mm/year — well below Pawpaw's minimum of 600 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Pawpaw is the #37 soil match of the 106 crops we assess for Turkana County. Pawpaw's full potential is about 12,000 kg/acre (~KES 336,000/acre at KES 28/kg), but at Turkana's 14/100 suitability a realistic target here is closer to 2,100 kg/acre (~KES 58,800/acre) unless the constraints above are addressed.
Better matched to Turkana's soil: Sisal, Aloe Vera, and Green Grams — each scores higher on the same soil.
Soil & climate match
| Factor | Turkana soil | Pawpaw needs | Status |
|---|---|---|---|
| pH | 7.95 | 6–7.5 | Adjust |
| Nitrogen | 0.41 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 38.5 mg/kg | min 12 mg/kg | OK |
| Potassium | 417 mg/kg | min 200 mg/kg | OK |
| Rainfall | 300 mm | 600–1,500 mm | Low |
| Altitude | 400 m | 0–1,200 m | OK |
Top dressing guide
Turkana's nitrogen (0.41 g/kg) is 34% of the 1.2 g/kg Pawpaw needs, so the standard 0.5 bags/acre is raised to 0.75. Split it across two applications to limit leaching.
Recommended seed varieties
No variety in our list is specifically rated for Turkana's 400 m altitude and 300 mm rainfall, so all 2 are shown. Confirm with your agrovet before buying.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag