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Researcher · Forestry and Forest Products Research Institute · Japan

Keizo Hirai

Keizo Hirai publishes mostly in Plant Science, Nature and Landscape Conservation and Astronomy and Astrophysics, on topics such as Plant Micronutrient Interactions and Effects, Seedling growth and survival studies and Banana Cultivation and Research.

ORCID 0000-0001-6382-1883 OpenAlex
World rank
#1,374,967
of 1,633,909 ranked researchers
Rank in Japan
#90,346
of 114,622
Works
18
Citations
5
Citations per work
0.3

What does Keizo Hirai research?

Plant Science: 35.3%Nature and Landscape Conservation: 23.5%Astronomy and Astrophysics: 11.8%Soil Science: 5.9%other fields: 23.5%35%top field
Plant Science35.3%Nature and Landscape Conservation23.5%Astronomy and Astrophysics11.8%Soil Science5.9%other fields23.5%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Plant Science35% of their works
  2. 2Nature and Landscape Conservation24% of their works
  3. 3Astronomy and Astrophysics12% of their works
  4. 4Soil Science6% of their works
  5. 5Ecology6% of their works
  6. 6Civil and Structural Engineering6% of their works

Research topics

Which keywords describe Keizo Hirai's research?

The keywords of their largest research topics: Soil Properties, Biofortification, Forest Restoration, Mineral Elements, Seedling Performance, Banana, Cassava and Crop Productivity.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 17 words, with their numbers
  1. Soil Properties32 topics
  2. Biofortification21 topic
  3. Forest Restoration21 topic
  4. Mineral Elements21 topic
  5. Seedling Performance21 topic
  6. Banana11 topic
  7. Cassava11 topic
  8. Crop Productivity11 topic
  9. Cyanogenic Glycosides11 topic
  10. Flora11 topic
  11. Genetics11 topic
  12. Geotechnical Engineering11 topic
  13. Nitrogen11 topic
  14. Phosphorus11 topic
  15. Road Construction11 topic
  16. Soil Fertility11 topic
  17. Vascular Plants11 topic

Where does Keizo Hirai work?

Keizo Hirai's main affiliation in the publication record is Forestry and Forest Products Research Institute, Japan.

How many publications and citations does Keizo Hirai have?

Science Explorer counts 18 works and 5 citations for Keizo Hirai, ranking #1,374,967 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics are in the interactive view on the map. Is this your page? Request a correction or removal.