00729naa a2200217 a 450000100080000000500110000800800410001910000220006024500980008226000090018065000170018965000260020665000160023265000180024865000250026665000170029165300080030865300210031665300140033777301600035116141081995-06-27       1990    bl ---       0--  u    #d1 aPAPASTYLIANOU, I.  aNitrogen fertilizer use efficiency by legumes and cereals grown in pure stand or in mixtures.  c1990  aAvena Sativa  aDiluição Isotópica  aNitrogênio  aPisum Sativum  aRotação de Cultura  aVicia Sativa  a15N  aADUBACAO QUIMICA  aCONSORCIO  tIn: International Symposium on the use of Stable Isotopes in Plant Nutrition, Soil Fertility and Environmental Studies. Vienna, Austria.gv., p.1-11, 1990.