00504naa a2200157 a 450000100080000000500110000800800410001910000190006024501470007926000090022665000130023565000100024865000160025870000210027477300510029516005421995-06-27       1978    bl ---       0--  u    #d1 aOKALEBO, J. R.  aA field comparison study of ammonium phosphates and superphosphate-urea or ammonium nitrate on corn (Zea mays L.) growth in five quebec soils.  c1978  aFósforo  aMilho  aNitrogênio1 aMACKENZIE, A. F.  tCan. J. Soil Sci.gv.58, n.2, p.221-228, 1978.