ReviewPlant and soil2021
Soil organic nitrogen: an overlooked but potentially significant contribution to crop nutrition.
Review in Plant and soil, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
26 citing papers in PubMed.
- Overcoming urea and nitrate inhibition of biological nitrogen fixation in Azotobacter vinelandii versus natural tolerance in Gluconacetobacter diazotrophicus.World journal of microbiology & biotechnology · 2026Article
- Characterization of four highly efficient ammonifying bacteria from Camellia Oleifera and their effects on soil chemical properties.BMC microbiology · 2026Article
- Article
- Arbuscular mycorrhizal fungi- linked microbial processes in soil nitrogen cycling.FEMS microbiology ecology · 2026Review
- An integrated microbiological analysis of the soil and rhizosphere ofMicrobiology (Reading, England) · 2026Article
- Nonpyrogenic "Black" Nitrogen Likely Plays a Major Yet Underrecognized Role in the Global Nitrogen Cycle.Environmental science & technology · 2026Article
- The Effects ofPlants (Basel, Switzerland) · 2026Article
- Single-strain and consortium inoculations with plant-beneficialMicrobiology spectrum · 2026Article
- Did crop domestication change the fitness landscape of root response to soil mechanical impedance? An in silico analysis.Annals of botany · 2025Article
- Microbial Role in Straw Organic Matter Depolymerization to Dissolved Organic Nitrogen Under Nitrogen Fertilizer Reduction in Coastal Saline Paddy Soil.Microorganisms · 2025Article
- Protists are key players in the utilization of protein nitrogen in the arbuscular mycorrhizal hyphosphere.The New phytologist · 2025Article
- Integrating MicroalgalFoods (Basel, Switzerland) · 2025Article
- Functional stratification and enzymatic arrangement in microbial communities across a hypersaline depth gradient.Frontiers in microbiology · 2025Article
- Review
- Soil Erosion Thickness and Seasonal Variations Together Drive Soil Nitrogen Dynamics at the Early Stage of Vegetation Restoration in the Dry-Hot Valley.Microorganisms · 2024Article
- Screening Cover Crops for Utilization in Irrigated Vineyards: A Greenhouse Study on Species' Nitrogen Uptake and Carbon Sequestration Potential.Plants (Basel, Switzerland) · 2024Article
- Nitrogen Sources Reprogram Carbon and Nitrogen Metabolism to Promote Andrographolide Biosynthesis inInternational journal of molecular sciences · 2024Article
- Enhancing soil health and nutrient availability for Carrizo citrange (XScientia horticulturae · 2024Article
- Review
- Root phenotypes for improved nitrogen capture.Plant and soil · 2024Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFor more than a century, crop N nutrition research has primarily focused on inorganic N (IN) dynamics, building the traditional model that agricultural plants predominantly take up N in the form of NO SCOPE: We examine the role of organic N (ON) in plant N nutrition, first by reviewing the historical discoveries by ecologists of plant ON uptake, then by discussing the advancements of key analytical techniques that have furthered the cause (stable isotope and microdialysis techniques). The current state of knowledge on soil ON dynamics is analyzed concurrently with recent developments that show ON uptake and assimilation by agricultural plant species. Lastly, we consider the relationship between ON uptake and nitrogen use efficiency (NUE) in an agricultural context.
conclusionsWe propose several mechanisms by which ON uptake and assimilation may increase crop NUE, such as by reducing N assimilation costs, promoting root biomass growth, shaping N cycling microbial communities, recapturing exuded N compounds, and aligning the root uptake capacity to the soil N supply in highly fertilized systems. These hypothetical mechanisms should direct future research on the topic. Although the quantitative role remains unknown, ON compounds should be considered as significant contributors to plant N nutrition.
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Registered trials
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