🌱Fertilizer Calculator
Lawn: 25–50g
Fertilizer calculators determine how much product to apply based on the nitrogen (N), phosphorus (P), and potassium (K) content stated on the bag (the NPK ratio). Over-application wastes money and risks plant burn and waterway pollution through nitrogen run-off. Under-application limits growth.
- 1Amount (g) = (Area m² × N required g/m²) ÷ (N% / 100)
- 2Nitrogen required varies: lawns 25–50 g N/m², vegetables 15–30 g N/m²
- 3Spring applications: use higher N content for growth
- 4Autumn applications: use lower N, higher K for root development
| Crop / Area | N Required (g/m²) | Timing |
|---|---|---|
| Lawn (spring) | 35–50 | March–May |
| Lawn (summer) | 25–35 | May–August |
| Lawn (autumn) | 10–15 | September–October |
| Vegetables (leafy) | 25–35 | Before planting |
| Vegetables (root) | 15–25 | At planting |
| Fruit trees | 20–35 | Early spring |
🔒
100% Gratis
Ingen registrering
✓
Præcis
Verificerede formler
⚡
Øjeblikkelig
Resultater med det samme
📱
Mobilvenlig
Alle enheder