Growing Pumpkin in Embu

Soil suitability analysis based on Embu's nutrient profile

Embu County is a solid choice for Pumpkin, with a soil-match score of 63/100. At an average pH of 5.1 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 1.04 g/kg, P 12.6 mg/kg, K 194 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 Embu 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 Embu's 63/100 suitability a realistic target here is closer to 7,875 kg/acre (~KES 236,250/acre) unless the constraints above are addressed.

63Suitability score

Soil & climate match

FactorEmbu soilPumpkin needsStatus
pH5.15.87.5Adjust
Nitrogen1.04 g/kgmin 0.8 g/kgOK
Phosphorus12.6 mg/kgmin 12 mg/kgOK
Potassium194 mg/kgmin 200 mg/kgLow
Rainfall1,300 mm500–1,200 mmHigh
Altitude1,400 m0–2,100 mOK

Planting calendar

Long Rains

Month 1
Direct Sowing & Basal
Month 2
Vine Management & Top Dressing
Month 3
Fruit Development & Harvest

Short Rains

Month 1
Direct Sowing & Basal
Month 2
Vine Management
Month 3
Fruit Development & Harvest

Top dressing guide

Product
CAN
Timing
Week 4 and at vine-run
Instruction
Top-dress when vines begin to run. Add potassium at fruit set.
Bags per Acre
0.4

Economics

Market priceKES 30/kg
Expected yield in Embu7,875 kg/acre
Estimated revenueKES 236,250/acre
Adjusted for Embu's 63/100 suitability. Under ideal conditions Pumpkin can reach 10,000 kg/acre (~KES 300,000/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(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