Guidance booklet  for Northern Ireland farmers on the requirements of the nitrates action programme (Northern Ireland) regulations 2006 and the phosphorus (use in agriculture) (Northern Ireland) regulations 2006.
Northern Ireland.Environment and Heritage Service.
Northern Ireland.Department of Agriculture and Rural Development.
Belfast : Environment and Heritage Service,
2007.
Cover title.
Department of Agriculture and Rural Development.
Nitrates
Phosphorus
Environmental protection
Environmental policy