The Water Resources (Control of Agricultural Pollution) (Wales) Regulations 2021 No. 77 (W. 20)

PART 5 Closed periods for spreading nitrogen fertiliser

Closed periods for spreading organic manure with high readily available nitrogen

18.  Subject to regulations 19 and 20, no person may spread organic manure with high readily available nitrogen on land between the following dates, all inclusive (“the closed period”)—

The closed period

Soil Type	Grassland	Tillage land
Sandy or shallow soil	1 September to 31 December	1 August to 31 December
All other soils	15 October to 15 January	1 October to 31 January