Growing Pumpkin in Siaya
Soil suitability analysis based on Siaya's nutrient profile
Siaya County is a solid choice for Pumpkin, with a soil-match score of 68/100. At an average pH of 5.33 the soil is moderately acidic, below Pumpkin's preferred 5.8–7.5 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 medium/medium/high demand — so the fertilizer plan below prioritises closing that deficit. Pumpkin prefers sandy loam soils, while Siaya is largely clay loam, so drainage and organic-matter management matter more here. Pumpkin's full potential is about 10,000 kg/acre (~KES 300,000/acre at KES 30/kg), but at Siaya's 68/100 suitability a realistic target here is closer to 8,500 kg/acre (~KES 255,000/acre) unless the constraints above are addressed.
Soil & climate match
| Factor | Siaya soil | Pumpkin needs | Status |
|---|---|---|---|
| pH | 5.33 | 5.8–7.5 | Adjust |
| Nitrogen | 1.2 g/kg | min 0.8 g/kg | OK |
| Phosphorus | 12.1 mg/kg | min 12 mg/kg | OK |
| Potassium | 134 mg/kg | min 200 mg/kg | Low |
| Rainfall | 1,200 mm | 500–1,200 mm | OK |
| Altitude | 1,200 m | 0–2,100 m | OK |
Planting calendar
Long Rains
Short Rains
Top dressing guide
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag