00637naa a2200217 a 450000100080000000500110000800800410001910000190006024501090007926000090018865000190019765000090021665000100022565300260023570000200026170000180028170000160029970000200031570000160033577300680035118249462010-10-29       1986    bl uuuu     u00u1 u    #d1 aZENTNER, R. P.  aThe effect of phosphorus fertilizer and crop rotations using zero tillage management in southern Brazil.  c1986  aPlantio Direto  aSoja  aTrigo  aRotação de culturas1 aKOCHHANN, R. A.1 aBOWREN, K. E.1 aAMBROSI, I.1 aIGNACZAK, J. C.1 aSATTLER, A.  tResearch Hi-Lites, Swift Current, Saskatchewan, p. 67-72, 1986.