Growing Broccoli in Tana River
Soil suitability analysis based on Tana River's nutrient profile
Generally not ideal — Tana River is poorly suited to Broccoli. Tana River's soil (pH 6.4, slightly acidic) gives Broccoli a suitability score of 0/100. Match fertilizer to Tana River's nitrogen and phosphorus levels for the best result.
Tana River County is a challenging environment for Broccoli (soil-match score 0/100) and will need significant amendment before planting. Local soils average pH 6.4 — slightly acidic to near-neutral and inside the 6–7.5 band Broccoli prefers, so no lime is usually required. The main gap is nitrogen, phosphorus, and potassium — measured at N 1.04 g/kg, P 8.5 mg/kg, K 108 mg/kg against this crop's high/high/high demand — so the fertilizer plan below prioritises closing those deficits. Broccoli prefers loam soils, while Tana River is largely sandy, so drainage and organic-matter management matter more here. Tana River receives approximately 400 mm/year — well below Broccoli's minimum of 800 mm — so supplemental irrigation would be essential for this crop. On ShambaIQ's soil-match model, Broccoli is the #103 soil match of the 106 crops we assess for Tana River County. Broccoli's full potential is about 6,000 kg/acre (~KES 540,000/acre at KES 90/kg), but at Tana River's 0/100 suitability a realistic target here is closer to 0 kg/acre (~KES 0/acre) unless the constraints above are addressed.
Better matched to Tana River's soil: Sorghum, Cowpeas, and Pigeon Peas — each scores higher on the same soil.
Soil & climate match
| Factor | Tana River soil | Broccoli needs | Status |
|---|---|---|---|
| pH | 6.4 | 6–7.5 | OK |
| Nitrogen | 1.04 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 8.5 mg/kg | min 20 mg/kg | Low |
| Potassium | 108 mg/kg | min 200 mg/kg | Low |
| Rainfall | 400 mm | 800–1,500 mm | Low |
| Altitude | 200 m | 1,800–2,800 m | Low |
Planting calendar for Tana River
Long Rains· March–May
Short Rains· October–DecemberMain season here
Dry Season· January–March
Top dressing guide
Tana River's nitrogen (1.04 g/kg) is 87% of the 1.2 g/kg Broccoli needs, so the standard 1.5 bags/acre is raised to 2. Split it across two applications to limit leaching.
Recommended seed varieties
No variety in our list is specifically rated for Tana River's 200 m altitude and 400 mm rainfall, so all 3 are shown. Confirm with your agrovet before buying.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag