ArticleFrontiers in plant science2021
Nitrogen Use Efficiency Definitions of Today and Tomorrow.
Article in Frontiers in plant science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 90 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
90 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Global evaluation of key factors influencing nitrogen fertilization efficiency in wheat: a recent meta-analysis (2000-2022).Frontiers in plant science · 2023Pooled it
- Photorespiration Is Associated with Nitrogen Metabolism and Nitrogen Productivity in Kentucky Bluegrass.Biology · 2026Article
- Arbuscular Mycorrhizal Fungi andPlant-environment interactions (Hoboken, N.J.) · 2026Article
- Multiomics analysis of primary metabolism reveals the genetic basis of nitrogen partitioning modulated by ZmAVT1A-1 in maize.Nature genetics · 2026Article
- Pyrolysis temperature regulates biochar-soil interactions to enhance cation exchange capacity, plant growth, and photosynthetic performance.BMC plant biology · 2026Article
- Impact of application of chicken manure and inorganic nitrogen fertilizer on soil microbial, yield and quality of tomato in semi-arid areas.Scientific reports · 2026Article
- Nitrogen Management in Crop-Soil-Environment Systems: Pathways Toward Sustainable and Climate-Resilient Agriculture.International journal of molecular sciences · 2026Review
- Optimizing the blending ratio of urea with slow-release N fertilizer improves maize yield and N use efficiency while reducing N losses.Frontiers in plant science · 2026Article
- Physiological, canopy, and yield responses of quinoa to irrigation and nitrogen management in the U.S. Midwest.Frontiers in plant science · 2026Article
- The reduction of nitrogen fertilizer combined with humic acid application improves potato yield by modulating soil microbial community structure in arid and semi-arid regions.Frontiers in plant science · 2026Article
- Biochar enhances nitrogen use efficiency in lettuce by promoting its metabolic assimilation.Plant and soil · 2026Article
- Conservation agriculture enhances ecosystem services and sustainability of the system over conventional agriculture.Scientific reports · 2025Article
- Unraveling nitrogen uptake and metabolism: gene families, expression dynamics and functional insights in aspen (Populus tremula).Tree physiology · 2025Article
- Response of Wheat and Sugar Beet to Different Mineral-Organic Fertilization in a Long-Term Experiment.Life (Basel, Switzerland) · 2025Article
- Combined application of biochar-compost and cow urine enhances organic rice production.Scientific reports · 2025Article
- Impact of the Nitrogen on Nutrient Dynamics in Soybean-Grass Intercropping in a Degraded Pasture Area.Plants (Basel, Switzerland) · 2025Article
- The effect of split application of mineral nitrogen on biomass yield and nitrogen content, uptake, use efficiency and harvest index in spring rye.Scientific reports · 2025Article
- UAV-based multispectral image analysis revealed stay-green haplotypes in wheat specific for different soil nitrogen levels.BMC plant biology · 2025Article
- Nitrogen Use Efficiency in Agriculture: Integrating Biotechnology, Microbiology, and Novel Delivery Systems for Sustainable Agriculture.Plants (Basel, Switzerland) · 2025Review
- Sustainability of organic zucchini in Mediterranean environment: an on-farm experimentation.Journal of the science of food and agriculture · 2025Article
30 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Crop production has a large impact on the nitrogen (N) cycle, with consequences to climate, environment, and public health. Designing better N management will require indicators that accurately reflect the complexities of N cycling and provide biological meaning. Nitrogen use efficiency (NUE) is an established metric used to benchmark N management. There are numerous approaches to calculate NUE, but it is difficult to find an authoritative resource that collates the various NUE indices and systematically identifies their assets and shortcomings. Furthermore, there is reason to question the usefulness of many traditional NUE formulations, and to consider factors to improve the conceptualization of NUE for future use. As a resource for agricultural researchers and students, here we present a comprehensive list of NUE indices and discuss their functions, strengths, and limitations. We also suggest several factors-which are currently ignored in traditional NUE indices-that will improve the conceptualization of NUE, such as: accounting for a wider range of soil N forms, considering how plants mediate their response to the soil N status, including the below-ground/root N pools, capturing the synchrony between available N and plant N demand, blending agronomic performance with ecosystem functioning, and affirming the biological meaning of NUE.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.