Growing Pawpaw in Siaya

Soil suitability analysis based on Siaya's nutrient profile

Quick answer

Yes, with the right inputs — Siaya is moderately suited to Pawpaw. Siaya's soil (pH 5.33, strongly acidic) gives Pawpaw a suitability score of 64/100. Apply agricultural lime before planting to unlock phosphorus and lift the score.

Siaya County is a solid choice for Pawpaw, with a soil-match score of 64/100. At an average pH of 5.33 the soil is moderately acidic, below Pawpaw's preferred 6–7.5 range; agricultural lime will lift pH and unlock phosphorus the crop cannot otherwise access. The main gap is potassium — measured at N 1.2 g/kg, P 12.1 mg/kg, K 134 mg/kg against this crop's high/medium/high demand — so the fertilizer plan below prioritises closing that deficit. Pawpaw prefers sandy loam soils, while Siaya is largely clay loam, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Pawpaw is the #57 soil match of the 106 crops we assess for Siaya County. Pawpaw's full potential is about 12,000 kg/acre (~KES 336,000/acre at KES 28/kg), but at Siaya's 64/100 suitability a realistic target here is closer to 9,600 kg/acre (~KES 268,800/acre) unless the constraints above are addressed.

64Suitability score

Soil & climate match

FactorSiaya soilPawpaw needsStatus
pH5.336–7.5Adjust
Nitrogen1.2 g/kgmin 1.2 g/kgOK
Phosphorus12.1 mg/kgmin 12 mg/kgOK
Potassium134 mg/kgmin 200 mg/kgLow
Rainfall1,200 mm600–1,500 mmOK
Altitude1,200 m0–1,200 mOK

Top dressing guide

Product
CAN
Timing
Every 3 months
Instruction
Apply in a ring around the stem. Pawpaw is a fast-growing fruit and requires consistent nutrition.
Bags per acre in Siaya
0.5

Siaya's nitrogen (1.2 g/kg) already meets Pawpaw's 1.2 g/kg requirement, so this is a maintenance rate.

Seed varieties for Siaya

2 pawpaw varieties are rated for Siaya's altitude (1,200 m) and rainfall (1,200 mm):

Sunrise Solo· Coastal/MediumWambugu F1· Medium/Highland
Full variety details — maturity, yield & breeder →

Economics

Market priceKES 28/kg
Expected yield in Siaya9,600 kg/acre
Estimated revenueKES 268,800/acre
Adjusted for Siaya's 64/100 suitability. Under ideal conditions Pawpaw can reach 12,000 kg/acre (~KES 336,000/acre) — attainable here only after the climate and soil constraints below are addressed.

Preferred textureSandy Loam

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