RT null T1 Good Agricultural Practices for Reducing Ammonia Emissions A1 United Nations Environment Programme, YR 2014 FD 2014 LK https://wedocs.unep.org/handle/20.500.11822/13997 UL https://wedocs.unep.org/handle/20.500.11822/13997 DS UN Environment Document Repository RD Sep 16, 2026