00546naa a2200193 a 450000100080000000500110000800800410001910000200006024500940008026000090017465000160018365000160019965000240021565000120023965000160025165300300026770000170029777300380031416103861995-06-27       1965    bl ---       0--  u    #d1 aPETERSON, L. A.  aImportance of soil nitrates in determination of need and recovery of fertilizer nitrogen.  c1965  aBatata Doce  aCrescimento  aFertilidade do Solo  aNitrato  aNitrogênio  aDISTRIBUICAO DE NUTRIENTE1 aATTOE, O. J.  tAgron. J.gv.57, p.572-574, 1965.