00451naa a2200181 a 450000100080000000500110000800800410001910000210006024500360008126000090011765000090012665000110013565300100014665300150015665300160017170000230018777300590021015924261997-05-21       1996    bl uuuu     u00u1 u    #d1 aTORRES, R. de A.  aDicas para utilizacao de ureia.  c1996  aurea  aUréia  aDicas  aUtilizacao  aUtilization1 aSCARLATELLI, F. P.  tA Lavoura, Rio de Janeirogv.99, n.618, p.42-43, 1996.