TY  - GEN
AU  - Charles
AU  - Dutta S K, Sloger
TI  - Biological nitrogen fixation associated with rice production
SN  - 8120405609
U1  - 633.  188  947 DUT 
CY  - New Delhi, Oxford & IBH publishing co. pvt. ltd
KW  - Rice production-biological nitrogen fixation/plants-green manuring/rice-cyanobacteria
ER  -