00309nam a2200133 a 450000100080000000500110000800800410001910000200006024500190008026000230009930000110012249000250013370000170015818134721995-11-03       1965    bl uuuu      00u1 u    #d1 aBARTHOLOMEW, W.  aSoil nitrogen.  aMadison: ASAc1965  a615 p.  a(ASA. Agronomy, 10).1 aCLARK, F. E.