00818nam a2200253   450000100040000000500170000400700040002100800040002501000170002902000250004604000190007105000220009008200180011224501070013026000480023730000380028550400530032365000200037665000370039665000290043370000160046270000350047870000510051300020150504150914.0000000  a   92023877   a0471934763 :c$88.00  aUOELcDLCdDLC00aQH344b.N515 199300a574.5/22222000aNitrate :bprocesses, patterns, and management /cedited by T.P. Burt, A.L. Heathwaite, S.T. Trudgill.  aChichester ;aNew York :bJ. Wiley,cc1993.  ax, 444 p. :bill., maps ;c25 cm.  aIncludes bibliographical references and indexes. 0aNitrogen cycle. 0aNitratesxEnvironmental aspects. 0aNitrogen in agriculture.1 aBurt, T. P.1 aHeathwaite, A. L.q(A. Louise)1 aTrudgill, Stephen T.q(Stephen Thomas),d1947-