extended versions of papers presented in the symposium, Role of Biological Nitrogen Fixation in Sustainable Agriculture, at the 13th Congress of Soil Science, Kyoto, Japan, 1990 Ladha, J. K. (Jagdish Kumar) 1952- George, T. (Thomas) 1958- Bohlool, Behzad Ben. International Congress of Soil Science 1990 : Kyoto, Japan) text Dordrecht Boston Los Baños] Kluwer Academic Publishers International Rice Research Institute 1992 monographic 209 p. : ill. ; 27 cm. edited by J.K. Ladha, T. George, and B.B. Bohlool. "Reprinted from Plant and soil, volume 141 (1992)." Includes bibliographical references. Nitrogen in agriculture Agriculture (General) Nitrogen Fixation Congresses Sustainable agriculture Congresses S587.5.N5 B56 1992 631.8/47 0792317742 (HB : acidfree paper) 92010783 http://www.loc.gov/catdir/enhancements/fy0822/92010783-d.html http://www.loc.gov/catdir/enhancements/fy0822/92010783-d.html UOEL 000 20150325085727.0 4394883