Results 11 to 20 of about 124,422 (325)

Quantification of biological N2 fixation of hedgerow trees in Northern Lampung [PDF]

NJAS: Wageningen Journal of Life Sciences, 2000
AbstractThe contribution of the leguminous hedgerow trees Flemingia congesta and mixed Gliricidia sepium — Peltophorum dasyrrachis established on an Ultisol (Grossarenic Kandiudult) in Northern Lampung, Sumatra to the N economy of the hedgerow intercropping system was assessed.
K. Hairiah, M. Van Noordwijk, G. Cadisch
semanticscholar   +2 more sources

Nodulation, contribution of biological N2 fixation, and productivity of the common bean (Phaseolus vulgaris L.) inoculated with rhizobia isolates

Australian Journal of Crop Science, 2017
The common bean has a great economic, social, and nutritional importance and requires high levels of nitrogen for its cultivation.
L. Moreira, Ana Paula Santos Oliveira, E. P. B. Ferreira   +2 more
semanticscholar   +2 more sources

Is moss-associated nitrogen fixation controlled by the same factors across shoots, species and sites?

Environmental and Experimental Botany
Biological N2 fixation performed by moss-associated cyanobacteria is among the main sources of new nitrogen (N) input in pristine subarctic ecosystems.
Jørgen Ulrik Graudal Levinsen, Mingyue Yuan, Anders Michelsen, Kathrin Rousk   +3 more
doaj   +2 more sources

Temperate southern Australian coastal waters are characterised by surprisingly high rates of nitrogen fixation and diversity of diazotrophs [PDF]

PeerJ, 2021
Biological dinitrogen (N2) fixation is one mechanism by which specific microorganisms (diazotrophs) can ameliorate nitrogen (N) limitation. Historically, rates of N2 fixation were believed to be limited outside of the low nutrient tropical and ...
Lauren F. Messer, Mark V. Brown, Paul D. Van Ruth, Mark Doubell, Justin R. Seymour   +4 more
doaj   +2 more sources

N2 fixation in eddies of the eastern tropical South Pacific Ocean [PDF]

, 2016
Mesoscale eddies play a major role in controlling ocean biogeochemistry. By impacting nutrient availability and water column ventilation, they are of critical importance for oceanic primary production. In the eastern tropical South Pacific Ocean off Peru,
Altabet, M. A., Bange, Hermann W., Bourbonnais, A., Charoenpong, C. N., Czeschel, Rena, Dekaezemacker, J., Hoffmann, C., Löscher, Carolin, Schmitz, Ruth   +8 more
core   +11 more sources

Nitrogen fixation: A poorly understood process along the freshwater‐marine continuum

Limnology and Oceanography Letters, 2022
N2 fixation is a major component of the global N cycle and has been extensively studied in open‐ocean and terrestrial ecosystems. Yet rates and ecological dynamics remain virtually unknown for the inland and coastal aquatic ecosystems (lakes, wetlands ...
Amy M. Marcarelli, Robinson W. Fulweiler, J. Thad Scott   +2 more
doaj   +1 more source

Maize-cowpea intercropping as an ecological intensification option for low input systems in sub-humid Zimbabwe: Productivity, biological N2-fixation and grain mineral content

, 2021
Poor soil fertility and erratic rainfall constrain crop production in rain-fed smallholder farming systems in sub-Saharan Africa. Integration of drought tolerant and N2-fixing crops into maize-based cropping systems is a risk-averse strategy that also ...
Talent Namatsheve, Talent Namatsheve, R. Chikowo, R. Chikowo, M. Corbeels, M. Corbeels, C. Mouquet-Rivier, C. Icard-Vernière, R. Cardinael, R. Cardinael   +9 more
semanticscholar   +1 more source

Direct biological fixation provides a freshwater sink for N2O

Nature Communications, 2023
Nitrous oxide (N2O) is a potent climate gas, with its strong warming potential and ozone-depleting properties both focusing research on N2O sources. Although a sink for N2O through biological fixation has been observed in the Pacific, the regulation of ...
Yueyue Si, Yizhu Zhu, Ian Sanders, Dorothee B. Kinkel, Kevin J. Purdy, Mark Trimmer   +5 more
doaj   +1 more source

Critical Role of Light in the Growth and Activity of the Marine N2-Fixing UCYN-A Symbiosis

Frontiers in Microbiology, 2021
The unicellular N2-fixing cyanobacteria UCYN-A live in symbiosis with haptophytes in the Braarudosphaera bigelowii lineage. Maintaining N2-fixing symbioses between two unicellular partners requires tight coordination of multiple biological processes ...
Marine Landa, Kendra A. Turk-Kubo, Francisco M. Cornejo-Castillo, Britt A. Henke, Jonathan P. Zehr   +4 more
doaj   +1 more source

Diazotrophy in alluvial meadows of subarctic river systems. [PDF]

PLoS ONE, 2013
There is currently limited understanding of the contribution of biological N2 fixation (diazotrophy) to the N budget of large river systems. This natural source of N in boreal river systems may partially explain the sustained productivity of river ...
Thomas H DeLuca, Olle Zackrisson, Ingela Bergman, Beatriz Díez, Birgitta Bergman   +4 more
doaj   +1 more source