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Topic · Plant Science

Legume Nitrogen Fixing Symbiosis

Legume Nitrogen Fixing Symbiosis is a research topic within Plant Science. Science Explorer counts 48k research works in it since 1950. 38.2% of them reached the world's top 10% most cited for their field and year.

This cluster of papers focuses on the symbiotic nitrogen fixation in legumes, particularly the interactions between legumes and nitrogen-fixing bacteria such as Rhizobium. It covers topics such as plant signaling, nodule development, genome analysis of symbionts, molecular regulation of symbiosis, host recognition of microbial associations, and the importance of legumes in nitrogen fixation.

  • Legumes
  • Symbiosis
  • Nitrogen Fixation
  • Rhizobium
  • Plant Signaling
  • Nodule Development
  • Genome Analysis
  • Molecular Regulation
  • Host Recognition
  • Microbial Associations
Research works
48k
fractional, since 1950
In the world top 10%
18k
per year above
Top-10% rate
38.2%
share of its works in the world top 10%
Growth, 2013–17 → 2018–22
+36%
the tick is no change

Which countries lead Legume Nitrogen Fixing Symbiosis research?

By volume, China and India publish the most (1.9k and 860 works in 2022–2025).

By volume, 2022–2025

  1. 1 China 1.9k works
  2. 2 India 860 works
  3. 3 United States 743 works
  4. 4 Brazil 350 works
  5. 5 France 217 works
  6. 6 Russia 194 works
  7. 7 Germany 179 works
  8. 8 Japan 167 works
  9. 9 Australia 147 works
  10. 10 Spain 143 works

How concentrated that is

The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.

China: 38.2%India: 17.7%United States: 15.3%Brazil: 7.2%6 others listed: 21.5%38%largest
China1,855 · 38.2%India860 · 17.7%United States743 · 15.3%Brazil350 · 7.2%6 others listed1,046 · 21.5%

Shares of the rows listed above, not of the whole node.

Which institutions lead Legume Nitrogen Fixing Symbiosis research?

By volume in 2022–2025, Nanjing Agricultural University publishes the most Legume Nitrogen Fixing Symbiosis research, followed by Chinese Academy of Sciences and China Agricultural University.

Who are the leading researchers in Legume Nitrogen Fixing Symbiosis?

The most-cited researchers publishing on Legume Nitrogen Fixing Symbiosis include Jozef Deckers, Dennis W. Dickson and Yakov Kuzyakov.

  1. 1 Jozef Deckers Belgium 2.8k citations
  2. 2 Dennis W. Dickson United States 2.8k citations
  3. 3 Yakov Kuzyakov Germany 2.7k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

Where is Legume Nitrogen Fixing Symbiosis research done?

The largest centres of Legume Nitrogen Fixing Symbiosis research in 2022–2025 are Beijing (China), Nanjing (China), New Delhi (India) and Guangzhou (China). Among places with at least 20 works in it, it is an unusually large share of all research in Tsarskoye Selo.

Largest cities, 2022–2025

  1. 1 Beijing China 378 works
  2. 2 Nanjing China 129 works
  3. 3 New Delhi India 110 works
  4. 4 Guangzhou China 81 works
  5. 5 Paris France 76 works
  6. 6 Harbin China 71 works
  7. 7 Wuhan China 58 works
  8. 8 São Paulo Brazil 50 works
  9. 9 Lanzhou China 50 works
  10. 10 Kunming China 49 works

Where it is the local speciality

  1. Tsarskoye SeloRU · 25.9 works72×
← less than its size predictsmore →

Location quotient: how much more of its research is in Legume Nitrogen Fixing Symbiosis than the world average.

See Legume Nitrogen Fixing Symbiosis on the map

Where is the best place to study Legume Nitrogen Fixing Symbiosis?

Among universities, judged by research, Fujian Agriculture and Forestry University, Nanjing Agricultural University and Northwest A&F University score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.

0%25%50%75%mean 60.41%fractional works in this node (log) →share in the world top 10% →Fujian Agriculture and Forestry University: 25, 55.2%Nanjing Agricultural University: 59, 56.2%Northwest A&F University: 36, 59.2%China Agricultural University: 50, 56.3%Huazhong Agricultural University: 38, 56.7%Université Mohammed VI Polytechnique: 10, 68.1%Center for Excellence in Molecular Plant Sciences: 10, 69.9%Swedish University of Agricultural Sciences: 15, 55.9%Shandong Agricultural University: 22, 56.8%Shandong Academy of Agricultural Sciences: 10, 69.8%Northwest A&F Univer…China Agricultural U…Nanjing Agricultural…Fujian Agriculture a…
above the meannear itbelow it

One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.

#UniversityScoreTop 10%SpecialisationWorksGrowth
1 Fujian Agriculture and Forestry UniversityChina 76.455.2%15.4×25 +349.4%
2 Nanjing Agricultural UniversityChina 74.756.2%21.6×59 +18.0%
3 Northwest A&F UniversityChina 74.159.2%13.0×36 +64.5%
4 China Agricultural UniversityChina 71.856.3%12.6×50 -2.8%
5 Huazhong Agricultural UniversityChina 71.756.7%16.0×38 +31.6%
6 Université Mohammed VI PolytechniqueMorocco 71.568.1%16.9×10
7 Center for Excellence in Molecular Plant SciencesChina 71.169.9%86.5×10 +99.1%
8 Swedish University of Agricultural SciencesSweden 69.255.9%13.5×15 +45.7%
9 Shandong Agricultural UniversityChina 67.256.8%17.7×22 +72.4%
10 Shandong Academy of Agricultural SciencesChina 66.969.8%33.3×10 +83.7%

Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.

Is Legume Nitrogen Fixing Symbiosis research growing?

Output in 2018–2022 was 36% higher than in 2013–2017, peaking in 2022. The fastest-growing topics are Legume Nitrogen Fixing Symbiosis.

19801990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Which topics inside it are moving

Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.