=LDR 22 4500 =001 5542 =082 04$a2002 CRA =100 1\$aCrammond, Dale =245 10$aTo investigate the release of nitrate and ammonium ions from surface applied animal slurry =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c2002 =650 \0$aTheses =852 \\$bFreeman Library$h2002 CRA