00458naa a2200157 a 450000100080000000500110000800800410001910000210006024500820008126000090016365000140017265000230018665000160020965000250022577300500025016027611995-06-27       1973    bl ---       0--  u    #d1 aJENKINSON, D. S.  aOrganic matter and nitrogen in soils of the rothamsted classical experiments.  c1973  aAgronomia  aMatéria Orgânica  aNitrogênio  aRotação de Cultura  tJ. Sci. Food Agric.gv.24, p.1149-1150, 1973.