Journal ArticleDOI
An appraisal of recent field measurements of symbiotic N2 fixation by annual legumes
Murray Unkovich,John S. Pate +1 more
TLDR
To improve confidence in isotopic techniques for estimating N2 fixation differences in the form and function of plant roots are highlighted as critical areas for future research, as is a greater understanding of the total N contained in legume roots.About:
This article is published in Field Crops Research.The article was published on 2000-03-01. It has received 373 citations till now. The article focuses on the topics: Field pea.read more
Citations
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Journal ArticleDOI
Legumes: Importance and Constraints to Greater Use
Peter Graham,Carroll P. Vance +1 more
TL;DR: Legumes, broadly defined by their unusual flower structure, podded fruit, and the ability of 88% of the species examined to date to form nodules with rhizobia, are second only to the Graminiae in their importance to humans.
Journal ArticleDOI
Global inputs of biological nitrogen fixation in agricultural systems
TL;DR: This paper reviews and update long-standing and more recent estimates of biological N2 fixation for the different agricultural systems, including the extensive, uncultivated tropical savannas used for grazing.
Journal ArticleDOI
Nitrogen uptake, fixation and response to fertilizer N in soybeans: A review
Fernando Salvagiotti,Kenneth G. Cassman,James E. Specht,Daniel T. Walters,Albert Weiss,Achim Dobermann +5 more
TL;DR: In this paper, a comprehensive summary and interpretation of these interactions with specific emphasis on high yield environments is lacking. But the results from many N fertilization studies are often confounded by insufficiently optimized BNF or other management factors that may have precluded achieving BNF-mediated yields near the yield potential ceiling.
Journal ArticleDOI
The contributions of nitrogen-fixing crop legumes to the productivity of agricultural systems.
Mark B. Peoples,John Brockwell,David F. Herridge,I.J. Rochester,Bruno José Rodrigues Alves,Segundo Urquiaga,Robert M. Boddey,Felix D. Dakora,S. Bhattarai,S.L. Maskey,C. Sampet,Benjavan Rerkasem,Dil F. Khan,Henrik Hauggaard-Nielsen,Erik Steen Jensen +14 more
TL;DR: Results suggest that one such non-N benefit may be due to the impact on soil biology of hydrogenemitted from nodules as a by-product of N2, fixation, which is associated with improvements in availability of N in soils.
References
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Journal ArticleDOI
N2-Fixation in Field Settings: Estimations Based on Natural 15N Abundance
G Shearer,DH Kohl +1 more
TL;DR: Estimates based on this method compare favourably with other methods for field evaluation of N2-fixation, provided that the site and the sampling strategy are appropriate for application of the method.
Book ChapterDOI
Biological nitrogen fixation: An efficient source of nitrogen for sustainable agricultural production?
TL;DR: For farming systems to remain productive, and to be sustainable in the long-term, it will be necessary to replenish the reserves of nutrients which are removed or lost from the soil.
Journal ArticleDOI
Inhibition of legume nodule formation and N2 fixation by nitrate
John Streeter,Peter P. Wong +1 more
TL;DR: Inhibition of legume nodule formation and N2 fixation by nitrate is inhibited and legume growth is inhibited by nitrates, respectively.
Journal ArticleDOI
Grain yield, symbiotic N2 fixation and interspecific competition for inorganic N in pea-barley intercrops
TL;DR: The intercropping advantage in the pea-barley intercrop is mainly due to the complimentary use of soil inorganic and atmospheric N sources by the intercrop components, resulting in reduced competition for inorganic N, rather than a facilitative effect, in which symbiotically fixed N2 is made available to barley.
Journal ArticleDOI
Biological nitrogen fixation in mixed legume/grass pastures
S. F. Ledgard,K. W. Steele +1 more
TL;DR: Increased BNF in mixed legume/grass pastures is being obtained through selection or breeding of legumes for increased productivity and/or to minimise effects of nutrient limitations, low soil moisture, soil acidity, and pests and disease.