000 00505 a2200193 4500
245 1 _aRole of Beijerinckia in the fertility of acid soils.
300 _a98p.
650 _aAcid soils
650 _aFertility
650 _aPH
650 _aAzotobactor
650 _aNitrogen fixation
650 _aMinerals
502 _cIARI, Division of Soil Science and Agricultural Chemistry, New Delhi
_bPh.D.
_d1962
502 _gSen, A.
100 1 _aBarooah, P.P.
_d
942 _2udc
_cT
901 _aT1157
999 _c140741
_d140741