00463naa a2200157 a 450000100080000000500110000800800410001910000200006024500850008026000090016565000100017465300140018470000180019870000200021677300690023620293572015-11-24       1981    bl ---       0--  u    #d1 aGALLAHER, R. N.  aLeaf magnesium concentration efficiency versus yield efficiency of corn hybrids.  c1981  aMilho  aHíbridos1 aJELLUM, M. D.1 aJONES JR. J. B.  tCommun. in Soil Sci. Plant Anal.gv. 12, n. 4, p. 345-354, 1981.