00572nam a2200193 a 450000100080000000500110000800800410001910000180006024500920007826000500017030000090022049000650022965000150029465000160030965000090032565000100033470000160034470000180036016959052009-08-17       1962    bl uuuu     u0uu1 u    #d1 aNELSON, C. E.  aYields and plant responses of six soybean varieties to nitrogen and zinc fertilization.  aWashington: Washington State Universityc1962  a12p.  a(Washington Agricultural Experiment Station. Bulletin, 642).  aAdubação  aNitrogênio  aSoja  aZinco1 aROBERTS, S.1 aNELSON, G. D.