00537naa a2200181 a 450000100080000000500110000800800410001910000160006024501110007626000090018765000260019665000150022265000110023765000160024865000260026470000200029077300450031016138671995-06-27       1990    bl uuuu     u00u1 u    #d1 aOYER, L. J.  aUtilizing legume cropping systems to reduce nitrogen fertilizer requirements for conservation-tilled corn.  c1990  aConservação do Solo  aLeguminosa  aManejo  aNitrogênio  aRecuperação do Solo1 aTOUCHTON, J. T.  tAgron. J.gv.82, n.6, p.1123-1127, 1990.