000 005000000a22001690004500
020 _a8120405609
060 _a100
082 _a633. 188 947 DUT
100 _aCharles
100 _aDutta S K, Sloger
245 _aBiological nitrogen fixation associated with rice production
260 _aNew Delhi, Oxford & IBH publishing co. pvt. ltd
260 _c1991
300 _a448
650 _aRice production-biological nitrogen fixation/plants-green manuring/rice-cyanobacteria
942 _cBK
999 _c360213
_d360213