Growing Onions in Kwale
Soil suitability analysis based on Kwale's nutrient profile
Suitability Score
Soil Match Analysis
| Nutrient | Kwale Soil | Onions Needs | Status |
|---|---|---|---|
| pH | 6.76 | 6–7 | ✓ OK |
| Nitrogen | 0.93 g/kg | high | high |
| Phosphorus | 9.8 mg/kg | high | high |
| Potassium | 131 mg/kg | medium | medium |
Top Dressing Guide
Product
CAN
Timing
Week 3–4 after transplanting
Instruction
Apply when bulb formation begins. Do not apply after bulbing starts.
Bags per Acre
0.5
Recommended Seed Varieties
Red CreoleMedium/Highland
Simlaw Seeds · 90-120 days · 120-160 bags/acre
Popular red onion; good storage quality.
Bombay RedMedium
East Africa Seeds · 100-130 days · 100-140 bags/acre
Large bulb size; pungent flavor; high market value.
Economics
Market priceKES 80/kg
Expected yield4,000 kg/acre
Estimated revenueKES 320,000/acre
Soil textureSandy Loam
Fertilizer Prices
DAP
KES 2,500(6,500)
CAN
KES 2,500(4,500)
NPK 17:17:17
KES 2,500(5,600)
Urea
KES 2,500(5,500)
Lime
KES 1,500(1,800)
Green = subsidized · (Commercial) per 50kg bag