GREEN MANURE Sunn Hemp Seeds
Botanical name: Crotalaria juncea
Coverage & Seeding Rate (How Much Seed You Need)
Recommended rates for green manure/cover cropping:
- Broadcast: 3–5 g/m² (≈ 30–50 kg/ha, 12–20 kg/acre)
- Drilled/row-sown: 2–3 g/m² (≈ 20–30 kg/ha, 8–12 kg/acre)
| Area | Broadcast Seed Needed (3–5 g/m²) | Drilled Seed Needed (2–3 g/m²) |
|---|---|---|
| 10 m² (e.g. small bed) | 30–50 g | 20–30 g |
| 50 m² | 150–250 g | 100–150 g |
| 100 m² (0.01 ha) | 300–500 g | 200–300 g |
| 1,000 m² (0.1 ha) | 3–5 kg | 2–3 kg |
| 1 hectare | 30–50 kg | 20–30 kg |
| 1 acre (≈0.405 ha) | 12–20 kg | 8–12 kg |
Pack size coverage (broadcast): 100 g ≈ 20–33 m² • 500 g ≈ 100–166 m² • 1 kg ≈ 200–333 m² • 5 kg ≈ 1,000–1,666 m².
Tips: For lighter, sandy soils or sparse tilth, use the higher end of the range. If drilling in rows at 20–30 cm spacing, you can use the lower rate. Rake in lightly (1–2 cm) and water to ensure good seed–soil contact.