000 00324nam a2200121Ia 4500
008 161002s9999 xx 000 0 und d
100 _aSukumar G.
245 0 _aNitrogen transformation under long term fertilization and cropping
563 _aHOT COPY
652 _aNIL
700 _f1982
_aDr. T.S.Manickam
942 _cTH
999 _c110124
_d110124