00476naa a2200169 a 450000100080000000500110000800800410001910000170006024500840007726000090016165000130017065000100018365000160019365000140020965300210022377300620024416047051995-06-27       1975    bl ---       0--  u    #d1 aCLARK, R. B.  aMineral element concentrations in corn leaves by position on the plant and age.  c1975  aFósforo  aMilho  aNitrogênio  aPotássio  aVARIOS ELEMENTOS  tCommun. Soil Sci. Plant Anal.gv.6, n.4, p.439-450, 1975.