Management of Biological Nitrogen Fixation for the Development of More Productive and Sustainable Ag

Preface. Biological nitrogen fixation: an efficient source of nitrogen for sustainable agricultural production? M.B. Peoples, et al. Sustainable agriculture in the semi-arid tropics through biological nitrogen fixation in grain legumes; S.P. Wani. Enhancing crop legume N2 fixation through selection and breeding; D.F. Herridge, S.K.A. Danso. Enhancing legume N2 fixation through plant and soil management; M.B. Peoples, et al. Role of legumes in providing N for sustainable tropical pasture systems; R.J. Thomas. Management of biological N2 fixation on alley cropping systems: estimation and contribution to N balance; J. Sanginga, et al. Manipulation of rhizobia microflora for improving legume productivity and soil fertility: a critical assessment; J. Brockwell, et al. Green manure technology: potential, usage, and limitations. A case study for lowland rice; M. Becker, et al. Biological nitrogen fixation associated with sugar cane and rice: contributions and prospects for improvement; R.M. Boddey, et al. Biological N2 fixation by heterotrophic and phototrophic bacteria in association with straw; M.M. Roper, J.K. Ladha. Potential and pitfalls of trying to extend symbiotic interactions of nitrogen-fixing organisms to presently non-nodulated plants, such as rice; F.J. de Bruijn, et al. New techniques for studying competition by Rhizobia and for assessing nitrogen fixation in the field; K.J. Wilson, et al. Future benefits from biological nitrogen fixation: an ecological approach to agriculture; K.E. Giller, G. Cadisch. Research evaluation and impact analysis of biological nitrogen fixation; M.C.S. Bantilan, C. Johansen. Author index.