Growing Vine Spinach (Nderema) in Lamu
Soil suitability analysis based on Lamu's nutrient profile
Possible but challenging — Lamu is only marginally suited to Vine Spinach (Nderema). Lamu's soil (pH 6.31, slightly acidic) gives Vine Spinach (Nderema) a suitability score of 46/100. Match fertilizer to Lamu's nitrogen and phosphorus levels for the best result.
Vine Spinach (Nderema) can be grown in Lamu County, but the soil scores 46/100 and needs targeted management to reach full potential. Local soils average pH 6.31 — slightly acidic to near-neutral and inside the 5.8–7 band Vine Spinach (Nderema) prefers, so no lime is usually required. The main gap is nitrogen, phosphorus, and potassium — measured at N 0.74 g/kg, P 9.6 mg/kg, K 117 mg/kg against this crop's high/medium/medium demand — so the fertilizer plan below prioritises closing those deficits. Vine Spinach (Nderema) prefers loam soils, while Lamu is largely sandy, so drainage and organic-matter management matter more here. On ShambaIQ's soil-match model, Vine Spinach (Nderema) is the #53 soil match of the 106 crops we assess for Lamu County. Vine Spinach (Nderema)'s full potential is about 5,000 kg/acre (~KES 250,000/acre at KES 50/kg), but at Lamu's 46/100 suitability a realistic target here is closer to 2,875 kg/acre (~KES 143,750/acre) unless the constraints above are addressed.
Better matched to Lamu's soil: Sesame (Simsim), Sorghum, and Cowpeas — each scores higher on the same soil.
Soil & climate match
| Factor | Lamu soil | Vine Spinach (Nderema) needs | Status |
|---|---|---|---|
| pH | 6.31 | 5.8–7 | OK |
| Nitrogen | 0.74 g/kg | min 1.2 g/kg | Low |
| Phosphorus | 9.6 mg/kg | min 12 mg/kg | Low |
| Potassium | 117 mg/kg | min 150 mg/kg | Low |
| Rainfall | 600 mm | 800–1,800 mm | Low |
| Altitude | 10 m | 0–2,000 m | OK |
Planting calendar for Lamu
Long Rains· April–JuneMain season here
Short Rains· November–January
Top dressing guide
Lamu's nitrogen (0.74 g/kg) is 62% of the 1.2 g/kg Vine Spinach (Nderema) needs, so the standard 0.3 bags/acre is raised to 0.5. Split it across two applications to limit leaching.
Economics
Fertilizer prices
Green = subsidized · (Commercial) per 50kg bag