00457naa a2200145 a 450000100080000000500110000800800410001910000180006024501310007826000090020970000190021870000190023770000160025677300390027216180191995-06-27       1984    bl ---       0--  u    #d1 aHAWKES, G. E.  aA 31P nuclear magnetic resonance study of the phosphorus species in alkali extracts of soils from long-term field experiments.  c19841 aPOWLSON, D. S.1 aRANDALL, E. W.1 aTATE, K. R.  tJ. Soil Sci.gv.35, p.35-45, 1984.