=LDR 00000nam a2200000ui 4500 =001 4379 =008 250530s2008\\\\xx\|||||||||||||||||eng\d =082 04$a2008 O'F =100 1\$aO'Farrell, Sean =245 10$aThe potential for tile drains to act as pathways for phosphorus movement to watercourses =260 \\$aDublin :$bUniversity of Dublin, Trinity College,$c2008 =852 \\$bFreeman Library$cTheses$h2008 O'F