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Interseeded alfalfa N2 fixation and transfer to maize are reduced by N fertilizer
Establishing alfalfa ( Medicago sativa L.) under a maize ( Zea mays L.) silage companion crop is a promising approach for increasing forage production...
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Native soil origin influences the symbiotic N fixation effectiveness of chickpea mesorhizobia grown in Australian soils
Experiments conducted under controlled conditions can be poor predictors of the field performance of rhizobial inoculants. In this study, five field...
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Nitrogen uptake, retranslocation and potential N2-fixation in Scots pine and Norway spruce seedlings
Scots pine ( Pinus sylvestris L.) has higher early growth rates than Norway spruce ( Picea abies (L.) H. Karst.). To help efforts to understand...
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Endophytic N2 fixation in sweet potato: responses to N, P, and K inputs and visualization of 15N2 utilizing bacterial cells via Raman spectroscopy
Fertilizer-N strongly limits non-leguminous crop yields; however, sweet potato ( Ipomoea batatas ) is an exception, likely due to its ability to...
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Separate and Combined Effects of Silicic and Salicylic Acids On Growth and N2-Fixation in Lentil Plants Under Water Stress
Both silicic and salicylic acids have been reported to be effective in mitigating the harmful effects of environmental stresses. The effects of...
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Monocrop** and Intercrop** of Maize with Six Food Legumes at Malkerns in Eswatini: Their Effects on Plant Growth, Grain Yield and N2 Fixation, Measured using the 15N Natural Abundance and Ureide Techniques
Intercrop** of legumes and cereals has many benefits to both plant partners. In this study, the effect of legume-maize intercrop** on plant...
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Differentially abundant bacteria drive the N2-fixation of a widespread moss in the forest-tundra transition zone
Bryophytes maintain symbiosis with bacteria influencing the local nutrient budget. Moss bacterial communities are composed of a core microbiome and...
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Effects of Lithology on Asymbiotic N2 Fixation in Subtropical Secondary Forests, Southwest China
Asymbiotic N 2 fixation (ANF) is a major nitrogen (N) input pathway to terrestrial ecosystems. However, there is considerable uncertainty about how...
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Nitrogen content and C/N ratio in straw are the key to affect biological nitrogen fixation in a paddy field
Background and aimsStraw amendment can increase nitrogen fixation in paddy field, however, the efficiency of carbon sources with different...
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Biological N2-fixation in grass-clover ley in response to N application in cattle slurry vs. mineral fertilizer
BackgroundThe nitrogen (N) response in grass-clover is influenced by quantity and timing of N-fertilizer, but less is known about the effect of...
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The significance of endophytic and phyllospheric N2 fixation in forest trees: evidence from stable (15N) and radioactive (13N) tracer studies
Key messageThe proportional contribution of endophytic and phyllospheric diazotrophs to tree N nutrition can be quantified by 15 N techniques.
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Nitrogen but not phosphorus addition affects symbiotic N2 fixation by legumes in natural and semi-natural grasslands located on four continents
Background and aimsThe amount of nitrogen (N) derived from symbiotic N 2 fixation by legumes in grasslands might be affected by anthropogenic N and...
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The relationship of C and N stable isotopes to high-latitude moss-associated N2 fixation
Moss-associated N 2 fixation by epiphytic microbes is a key biogeochemical process in nutrient-limited high-latitude ecosystems. Abiotic drivers, such...
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Glutamic Acid-Enhanced Phosphate Fertilizer Increases Phosphorus Availability in Fluvo-Aquic Soil via Phosphamide (O = P-N) Formation, Decreasing Phosphate Fixation and Increasing Soil Microbial Diversity
At low concentrations, incorporating amino acids into phosphate fertilizer reportedly improves phosphate fertilizer efficiency, but a limited...
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White lupin (Lupinus albus L.) exposed to elevated atmospheric CO2 requires additional phosphorus for N2 fixation
PurposeThe steady rise of atmospheric CO 2 concentrations enhances symbiotic N 2 fixation and plant growth. However, it is largely unknown whether...
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UCYN-A/haptophyte symbioses dominate N2 fixation in the Southern California Current System
The availability of fixed nitrogen (N) is an important factor limiting biological productivity in the oceans. In coastal waters, high dissolved...
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Effect of symbiotic N2 fixation on leaf protein contents, protein degradation and nitrogen resorption during leaf senescence in temperate deciduous woody species
Nitrogen (N) resorption from senescing leaves enables plants to reuse N, making them less dependent on current N uptake from the environment, leading...
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Elevated UV-B radiation depressed biomass yield and symbiotic N2-fixation in Bradyrhizobium inoculated cowpea varieties
The Rhizobium-legume symbiosis plays an important role in improving soil fertility and crop productivity, particularly in inherently poor soils in...
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The rate and fate of N2 and C fixation by marine diatom-diazotroph symbioses
N 2 fixation constitutes an important new nitrogen source in the open sea. One group of filamentous N 2 fixing cyanobacteria ( Richelia intracellularis ,...
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N-Fixation by Free-Living and Endophytic Bacteria and Their Impact on Field Crops with Emphasis on Rice
Effective use of N-fixationN-fixation is important to establish crop production system with reduced dependency on chemical N fertilizer. This chapter...