0000-0003-2469-5890

Takuji Ohyama

Tokyo University of Agriculture

Niigata University

Publications

Citations

h-index

R-3D238-0F26F-CX25B

0000-0003-2469-5890

Found

Total publications

Total citations

Citations per publication

3.55

Average publications per year

1.57

Average coauthors

5.27

Publications years

2019-2025 (7 years)

h-index

i10-index

m-index

0.57

o-index

g-index

w-index

Metrics description

h-index

A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.

https://www.pnas.org/doi/full/10.1073/pnas.0507655102

i10-index

The number of the author's publications that received at least 10 links each.

https://scholar.googleblog.com/2011/11/google-scholar-citations-open-to-all.html

m-index

The researcher's m-index is numerically equal to the ratio of his h-index to the number of years that have passed since the first publication.

https://harzing.com/publications/white-papers/reflections-on-the-h-index

o-index

The geometric mean of the h-index and the number of citations of the most cited article of the scientist.

https://arxiv.org/abs/1511.01545

g-index

For a given set of articles, sorted in descending order of the number of citations that these articles received, the g-index is the largest number such that the g most cited articles received (in total) at least g² citations.

https://doi.org/10.1007/s11192-006-0144-7

w-index

If w articles of a researcher have at least 10w citations each and other publications are less than 10(w+1) citations, then the researcher's w-index is equal to w.

https://doi.org/10.1002/asi.21276

Top-100

Fields of science

	1 2 3 4
Agronomy and Crop Science	Agronomy and Crop Science, 4, 36.36% Agronomy and Crop Science 4 publications, 36.36%
Plant Science	Plant Science, 3, 27.27% Plant Science 3 publications, 27.27%
Food Science	Food Science, 2, 18.18% Food Science 2 publications, 18.18%
Biochemistry	Biochemistry, 1, 9.09% Biochemistry 1 publication, 9.09%
Molecular Biology	Molecular Biology, 1, 9.09% Molecular Biology 1 publication, 9.09%
General Engineering	General Engineering, 1, 9.09% General Engineering 1 publication, 9.09%
Ecology, Evolution, Behavior and Systematics	Ecology, Evolution, Behavior and Systematics, 1, 9.09% Ecology, Evolution, Behavior and Systematics 1 publication, 9.09%
Endocrinology, Diabetes and Metabolism	Endocrinology, Diabetes and Metabolism, 1, 9.09% Endocrinology, Diabetes and Metabolism 1 publication, 9.09%
Ecology	Ecology, 1, 9.09% Ecology 1 publication, 9.09%
	1 2 3 4

Journals

	1 2 3
Agriculture (Switzerland)	Agriculture (Switzerland), 3, 27.27% Agriculture (Switzerland) 3 publications, 27.27%
International Journal of Agronomy	International Journal of Agronomy, 2, 18.18% International Journal of Agronomy 2 publications, 18.18%
Plants	Plants, 2, 18.18% Plants 2 publications, 18.18%
Soil Science and Plant Nutrition	Soil Science and Plant Nutrition, 1, 9.09% Soil Science and Plant Nutrition 1 publication, 9.09%
Metabolites	Metabolites, 1, 9.09% Metabolites 1 publication, 9.09%
Nitrogen	Nitrogen, 1, 9.09% Nitrogen 1 publication, 9.09%
Crops	Crops, 1, 9.09% Crops 1 publication, 9.09%
	1 2 3

Citing journals

	1 2 3 4 5
Agriculture (Switzerland)	Agriculture (Switzerland), 5, 12.82% Agriculture (Switzerland) 5 citations, 12.82%
Plants	Plants, 5, 12.82% Plants 5 citations, 12.82%
Nitrogen	Nitrogen, 3, 7.69% Nitrogen 3 citations, 7.69%
Crops	Crops, 3, 7.69% Crops 3 citations, 7.69%
Biology and Fertility of Soils	Biology and Fertility of Soils, 2, 5.13% Biology and Fertility of Soils 2 citations, 5.13%
Journal of Soil Science and Plant Nutrition	Journal of Soil Science and Plant Nutrition, 2, 5.13% Journal of Soil Science and Plant Nutrition 2 citations, 5.13%
Journal not defined	Journal not defined, 1, 2.56% Journal not defined 1 citation, 2.56%
Hortscience: A Publication of the American Society for Hortcultural Science	Hortscience: A Publication of the American Society for Hortcultural Science, 1, 2.56% Hortscience: A Publication of the American Society for Hortcultural Science 1 citation, 2.56%
Frontiers in Plant Science	Frontiers in Plant Science, 1, 2.56% Frontiers in Plant Science 1 citation, 2.56%
Experimental Agriculture	Experimental Agriculture, 1, 2.56% Experimental Agriculture 1 citation, 2.56%
Talanta	Talanta, 1, 2.56% Talanta 1 citation, 2.56%
Soil Science and Plant Nutrition	Soil Science and Plant Nutrition, 1, 2.56% Soil Science and Plant Nutrition 1 citation, 2.56%
Environments - MDPI	Environments - MDPI, 1, 2.56% Environments - MDPI 1 citation, 2.56%
Agronomy	Agronomy, 1, 2.56% Agronomy 1 citation, 2.56%
Plant Physiology Reports	Plant Physiology Reports, 1, 2.56% Plant Physiology Reports 1 citation, 2.56%
Phycological Research	Phycological Research, 1, 2.56% Phycological Research 1 citation, 2.56%
Scientific Reports	Scientific Reports, 1, 2.56% Scientific Reports 1 citation, 2.56%
Field Crops Research	Field Crops Research, 1, 2.56% Field Crops Research 1 citation, 2.56%
Plant Physiology and Biochemistry	Plant Physiology and Biochemistry, 1, 2.56% Plant Physiology and Biochemistry 1 citation, 2.56%
Metabolites	Metabolites, 1, 2.56% Metabolites 1 citation, 2.56%
Physiologia Plantarum	Physiologia Plantarum, 1, 2.56% Physiologia Plantarum 1 citation, 2.56%
NATO Science for Peace and Security Series B: Physics and Biophysics	NATO Science for Peace and Security Series B: Physics and Biophysics, 1, 2.56% NATO Science for Peace and Security Series B: Physics and Biophysics 1 citation, 2.56%
Plant and Cell Physiology	Plant and Cell Physiology, 1, 2.56% Plant and Cell Physiology 1 citation, 2.56%
Journal of Agriculture and Food Research	Journal of Agriculture and Food Research, 1, 2.56% Journal of Agriculture and Food Research 1 citation, 2.56%
Plant Stress	Plant Stress, 1, 2.56% Plant Stress 1 citation, 2.56%
	1 2 3 4 5

Publishers

	1 2 3 4 5 6 7 8
MDPI	MDPI, 8, 72.73% MDPI 8 publications, 72.73%
Hindawi Limited	Hindawi Limited, 2, 18.18% Hindawi Limited 2 publications, 18.18%
Taylor & Francis	Taylor & Francis, 1, 9.09% Taylor & Francis 1 publication, 9.09%
	1 2 3 4 5 6 7 8

Organizations from articles

	2 4 6 8 10 12
Tokyo University of Agriculture	Tokyo University of Agriculture, 11, 100% Tokyo University of Agriculture 11 publications, 100%
Niigata University	Niigata University, 3, 27.27% Niigata University 3 publications, 27.27%
Akita Prefectural University	Akita Prefectural University, 2, 18.18% Akita Prefectural University 2 publications, 18.18%
COMSATS University Islamabad	COMSATS University Islamabad, 1, 9.09% COMSATS University Islamabad 1 publication, 9.09%
Kagoshima University	Kagoshima University, 1, 9.09% Kagoshima University 1 publication, 9.09%
Saga University	Saga University, 1, 9.09% Saga University 1 publication, 9.09%
Ibaraki University	Ibaraki University, 1, 9.09% Ibaraki University 1 publication, 9.09%
Kanagawa Institute of Technology	Kanagawa Institute of Technology, 1, 9.09% Kanagawa Institute of Technology 1 publication, 9.09%
	2 4 6 8 10 12

Countries from articles

	2 4 6 8 10 12
Japan	Japan, 11, 100% Japan 11 publications, 100%
Pakistan	Pakistan, 1, 9.09% Pakistan 1 publication, 9.09%
	2 4 6 8 10 12

Citing organizations

	1 2 3 4 5 6
Tokyo University of Agriculture	Tokyo University of Agriculture, 6, 15.38% Tokyo University of Agriculture 6 citations, 15.38%
Organization not defined	Organization not defined, 4, 10.26% Organization not defined 4 citations, 10.26%
Northeast Agricultural University	Northeast Agricultural University, 3, 7.69% Northeast Agricultural University 3 citations, 7.69%
Niigata University	Niigata University, 2, 5.13% Niigata University 2 citations, 5.13%
Pacific Geographical Institute of the Far Eastern Branch of the Russian Academy of Sciences	Pacific Geographical Institute of the Far Eastern Branch of the Russian Academy of Sciences, 1, 2.56% Pacific Geographical Institute of the Far Eastern Branch of the Russian Academy of Sciences 1 citation, 2.56%
King Saud University	King Saud University, 1, 2.56% King Saud University 1 citation, 2.56%
Shaqra University	Shaqra University, 1, 2.56% Shaqra University 1 citation, 2.56%
Ege University	Ege University, 1, 2.56% Ege University 1 citation, 2.56%
Dokuz Eylül University	Dokuz Eylül University, 1, 2.56% Dokuz Eylül University 1 citation, 2.56%
University of Agriculture, Faisalabad	University of Agriculture, Faisalabad, 1, 2.56% University of Agriculture, Faisalabad 1 citation, 2.56%
University of Sindh	University of Sindh, 1, 2.56% University of Sindh 1 citation, 2.56%
University of Chinese Academy of Sciences	University of Chinese Academy of Sciences, 1, 2.56% University of Chinese Academy of Sciences 1 citation, 2.56%
Ghent University	Ghent University, 1, 2.56% Ghent University 1 citation, 2.56%
Devi Ahilya Vishwavidyalaya	Devi Ahilya Vishwavidyalaya, 1, 2.56% Devi Ahilya Vishwavidyalaya 1 citation, 2.56%
Ocean University of China	Ocean University of China, 1, 2.56% Ocean University of China 1 citation, 2.56%
Shanxi Agricultural University	Shanxi Agricultural University, 1, 2.56% Shanxi Agricultural University 1 citation, 2.56%
Shenyang Agricultural University	Shenyang Agricultural University, 1, 2.56% Shenyang Agricultural University 1 citation, 2.56%
Heilongjiang Bayi Agricultural University	Heilongjiang Bayi Agricultural University, 1, 2.56% Heilongjiang Bayi Agricultural University 1 citation, 2.56%
Minzu University of China	Minzu University of China, 1, 2.56% Minzu University of China 1 citation, 2.56%
Northwest University	Northwest University, 1, 2.56% Northwest University 1 citation, 2.56%
University of Salerno	University of Salerno, 1, 2.56% University of Salerno 1 citation, 2.56%
Charles University	Charles University, 1, 2.56% Charles University 1 citation, 2.56%
Institute for Basic Science	Institute for Basic Science, 1, 2.56% Institute for Basic Science 1 citation, 2.56%
Northwest A&F University	Northwest A&F University, 1, 2.56% Northwest A&F University 1 citation, 2.56%
Incheon National University	Incheon National University, 1, 2.56% Incheon National University 1 citation, 2.56%
San Diego State University	San Diego State University, 1, 2.56% San Diego State University 1 citation, 2.56%
Kyoto University	Kyoto University, 1, 2.56% Kyoto University 1 citation, 2.56%
Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”, Bulgarian Academy of Sciences	Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”, Bulgarian Academy of Sciences, 1, 2.56% Institute of Mineralogy and Crystallography “Acad. Ivan Kostov”, Bulgarian Academy of Sciences 1 citation, 2.56%
Federal University of Rio Grande do Sul	Federal University of Rio Grande do Sul, 1, 2.56% Federal University of Rio Grande do Sul 1 citation, 2.56%
Federal University of Rio Grande	Federal University of Rio Grande, 1, 2.56% Federal University of Rio Grande 1 citation, 2.56%
Sophia University	Sophia University, 1, 2.56% Sophia University 1 citation, 2.56%
Kyoto Institute of Technology	Kyoto Institute of Technology, 1, 2.56% Kyoto Institute of Technology 1 citation, 2.56%
University of Life Sciences in Poznań	University of Life Sciences in Poznań, 1, 2.56% University of Life Sciences in Poznań 1 citation, 2.56%
Agriculture and Forestry University	Agriculture and Forestry University, 1, 2.56% Agriculture and Forestry University 1 citation, 2.56%
University of Connecticut	University of Connecticut, 1, 2.56% University of Connecticut 1 citation, 2.56%
Assiut University	Assiut University, 1, 2.56% Assiut University 1 citation, 2.56%
Tallinn University of Technology	Tallinn University of Technology, 1, 2.56% Tallinn University of Technology 1 citation, 2.56%
Politehnica University of Bucharest	Politehnica University of Bucharest, 1, 2.56% Politehnica University of Bucharest 1 citation, 2.56%
University of São Paulo	University of São Paulo, 1, 2.56% University of São Paulo 1 citation, 2.56%
Tribhuvan University	Tribhuvan University, 1, 2.56% Tribhuvan University 1 citation, 2.56%
University of Chemical Technology and Metallurgy	University of Chemical Technology and Metallurgy, 1, 2.56% University of Chemical Technology and Metallurgy 1 citation, 2.56%
Instituto Federal do Paraná	Instituto Federal do Paraná, 1, 2.56% Instituto Federal do Paraná 1 citation, 2.56%
Universidade de Passo Fundo	Universidade de Passo Fundo, 1, 2.56% Universidade de Passo Fundo 1 citation, 2.56%
Universidade Federal da Fronteira Sul	Universidade Federal da Fronteira Sul, 1, 2.56% Universidade Federal da Fronteira Sul 1 citation, 2.56%
Universidade Estadual de Maringá	Universidade Estadual de Maringá, 1, 2.56% Universidade Estadual de Maringá 1 citation, 2.56%
Universidade Federal de Pelotas	Universidade Federal de Pelotas, 1, 2.56% Universidade Federal de Pelotas 1 citation, 2.56%
Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences	Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, 1, 2.56% Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences 1 citation, 2.56%
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences	Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 1, 2.56% Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences 1 citation, 2.56%
Agricultural Research Service	Agricultural Research Service, 1, 2.56% Agricultural Research Service 1 citation, 2.56%

	1 2 3 4 5 6

Citing countries

	1 2 3 4 5 6 7 8 9
Japan	Japan, 9, 23.08% Japan 9 citations, 23.08%
Country not defined	Country not defined, 7, 17.95% Country not defined 7 citations, 17.95%
China	China, 7, 17.95% China 7 citations, 17.95%
USA	USA, 4, 10.26% USA 4 citations, 10.26%
Brazil	Brazil, 2, 5.13% Brazil 2 citations, 5.13%
Saudi Arabia	Saudi Arabia, 2, 5.13% Saudi Arabia 2 citations, 5.13%
Russia	Russia, 1, 2.56% Russia 1 citation, 2.56%
Germany	Germany, 1, 2.56% Germany 1 citation, 2.56%
Bulgaria	Bulgaria, 1, 2.56% Bulgaria 1 citation, 2.56%
Egypt	Egypt, 1, 2.56% Egypt 1 citation, 2.56%
India	India, 1, 2.56% India 1 citation, 2.56%
Italy	Italy, 1, 2.56% Italy 1 citation, 2.56%
Nepal	Nepal, 1, 2.56% Nepal 1 citation, 2.56%
Pakistan	Pakistan, 1, 2.56% Pakistan 1 citation, 2.56%
Poland	Poland, 1, 2.56% Poland 1 citation, 2.56%
Republic of Korea	Republic of Korea, 1, 2.56% Republic of Korea 1 citation, 2.56%
Romania	Romania, 1, 2.56% Romania 1 citation, 2.56%
Tunisia	Tunisia, 1, 2.56% Tunisia 1 citation, 2.56%
Turkey	Turkey, 1, 2.56% Turkey 1 citation, 2.56%
Czech Republic	Czech Republic, 1, 2.56% Czech Republic 1 citation, 2.56%
	1 2 3 4 5 6 7 8 9

We do not take into account publications without a DOI.
Statistics recalculated daily.

Data by ORCID

0000-0003-2469-5890

Journal of Soil Science and Plant Nutrition (5)

Plant and Soil (4)

Biocatalysis and Agricultural Biotechnology (2)