NVZ Closed Period Dates - England
NVZ closed periods in England
The NVZ closed periods are dates when you cannot spread manufactured fertilisers or organic manures with a high readily available nitrogen content. These rules only apply to land inside of a Nitrate Vulnerable Zone.
Organic Nitrogen
Start Date | End Date | Land Use | Soil Type |
1st August | 31st December | Tillage Land | Shallow/Sandy |
1st September | 31st December | Grassland | Shallow/Sandy |
16th September | 31st December | Tillage Land* | Shallow/Sandy |
1st October | 31st January | Tillage Land | All Other Soils |
15th October | 31st January | Grassland | All Other Soils |
*For Tillage Land with crops sown on or before 15th September
Manufactured Nitrogen
Start Date | End Date | Land Use | Soil Type |
1st September | 15th January | Tillage Land | All Soils |
15th September | 15th January | Grassland | All Soils |
Examples of manure products with high readily available nitrogen:
- Slurry
- Poultry manures
- Liquid anaerobic digestate
- Liquid digested sewage sludge
There are no closed periods for farmyard manures, all manure spreading is subject to weather conditions. Please see the most up-to-date NVZ Guidance for more information or call our office.
