TY  - BOOK
AU  - Hardarson, G.
TI  - Maximising the use of biological nitrogen fixation using in agriculture
U1  - 631.461.5  
PY  - 2003///
CY  - London
PB  - Kluwer
KW  -  G.Hardarson
KW  - Biological Nitrogen Fixation,Microbiology,Rhizobium,Legumes
ER  -