00381naa a2200133 a 450000100080000000500110000800800410001910000180006024500780007826000090015670000180016570000170018377300470020018375222010-01-10       1982    bl ---       0--  u    #d1 aMENGEL, D. B.  aPlacement of nitrogen fertilizers for no till and conventional till corn.  c19821 aNELSON, D. W.1 aHUBER, D. M.  tAgronomy Journalgv. 74, p. 515-518, 1982.