TY - BOOK ED - O'Gara, Fergal ED - Manian, S. ED - Drevon, J. J. TI - Physiological limitations and the genetic improvement of symbiotic nitrogen fixation T2 - Advances in agricultural biotechnology SN - 9024736927 U1 - 589.9504133 PY - 1986/// CY - Boston PB - Kluwer Academic Publishers KW - Nitrogen-Fixation-Congresses KW - Microbial Genetics-Congresses KW - Rhizobium ER -