Growing Watermelon in Kitui

Soil suitability analysis based on Kitui's nutrient profile

Quick answer

Yes — Kitui is well suited to Watermelon. Kitui's soil (pH 7.03, near-neutral) gives Watermelon a suitability score of 88/100. Match fertilizer to Kitui's nitrogen and phosphorus levels for the best result.

Kitui County is well suited to Watermelon, scoring 88/100 on ShambaIQ's soil-match model. Local soils average pH 7.03 — neutral and inside the 6–7.5 band Watermelon prefers, so no lime is usually required. The main gap is nitrogen — measured at N 0.74 g/kg, P 30.5 mg/kg, K 339 mg/kg against this crop's medium/medium/medium demand — so the fertilizer plan below prioritises closing that deficit. The county's predominantly sandy loam soils suit Watermelon, which favours sandy. At current prices (about KES 10/kg) and a typical 15,000 kg/acre yield, a well-managed Watermelon crop here can gross roughly KES 150,000 per acre.

88Suitability score

Soil & climate match

FactorKitui soilWatermelon needsStatus
pH7.0367.5OK
Nitrogen0.74 g/kgmin 0.8 g/kgLow
Phosphorus30.5 mg/kgmin 12 mg/kgOK
Potassium339 mg/kgmin 150 mg/kgOK
Rainfall500 mm300–700 mmOK
Altitude900 m0–1,500 mOK

Top dressing guide

Product
CAN
Timing
Week 3-4 after transplanting
Instruction
Apply at vine development stage. Stop nitrogen at flowering — excess N promotes leaves over fruits.
Bags per Acre
0.5

Recommended seed varieties

Sugar BabyDryland/Medium
Simlaw Seeds · 75-90 days · 5–7.5 tons/acre
Small round fruits; sweet red flesh; popular local market.
Charleston GreyMedium
Simlaw Seeds · 80-95 days · 6–9 tons/acre
Large oblong fruits; excellent taste; high yield.

Economics

Market priceKES 10/kg
Expected yield 15,000 kg/acre
Estimated revenueKES 150,000/acre

Preferred textureSandy

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