Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :1
Fish Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
28
0.737
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :2
molecular characterisation of crops
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
21
0.700
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :3
Conservation Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
18
0.900
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :4
Forestry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
16
0.727
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :5
Agricultural Entomology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
14
0.824
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :6
Fish/Food processing and quality assurance
Food processing & nutrient conservation
Food and culture
Food and nutrition securi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
10
0.667
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :7
Crop Protection
Crop Production
Root & Tuber Crops
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
9
0.818
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :8
Organic Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
9
0.900
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :9
Nuclear Science and Technology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
9
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :10
Employee empowerment
socila capital
organizational citizenship
Green Human Resource management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
6
0.667
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :11
Agriculture
Forestry and Environment
Soil - land use interactions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
5
0.556
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :12
strategic management
Research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :13
Entrepreneurship.
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :14
Waste beneficiation
CO2 adsorption
Brine mineralization
Fabrication of CO2 sorbents from waste
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :15
Curriculum Theory
Trends in Teacher Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :16
Cognitive Linguistics
multilingual education
phonology
sociolinguistics and syntax
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :17
Entrepreneurship
human resource development and strategic management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :18
Biodiversity
Conservation
Spatial Ecology
Climate Change
Environmental Planning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :19
gut microbiome
diabetes
food systems
legumes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :20
Fabrication of Nanomaterials
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :21
Human Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :22
Management
governance
higher education management
public administration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :23
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :24
Climatology
meteorology
hydro-climatology
Geography
Climate change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Last 6 Years i10 IndexRankings
Ranking Based On Selection :25
Soil Science
soil fertility
agricultural technology adoption
agricultural knowledge management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Charles Ngugi
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
38
28
0.737
Moses Muriithi mathenge
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
21
0.700
molecular characterisation of crops
Duncan Kimuyu
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
18
0.900
Mwangi James Kinyanjui
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
16
0.727
Linus Gitonga
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
14
0.824
Agricultural Entomology
Michael Ni Lokuruka
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
15
10
0.667
Fish/Food processing and quality assurance
Food processing & nutrient conservation
Food and culture
Food and nutrition securi
Agnes W. Kihurani
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
9
0.818
Crop Protection
Crop Production
Root & Tuber Crops
David Sujee Makhanu
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
9
0.900
Jeremiah Kebwaro
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
9
1.000
Nuclear Science and Technology
Anne Kariuki
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
6
0.667
Employee empowerment
socila capital
organizational citizenship
Green Human Resource management
Hellen Wangechi Kamiri
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
5
0.556
Agriculture
Forestry and Environment
Soil - land use interactions
Beatrice Ombaka
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
Kenneth Wanjau
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
5
0.833
Grace Nyambura Muriithi
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
5
1.000
Waste beneficiation
CO2 adsorption
Brine mineralization
Fabrication of CO2 sorbents from waste
Josphat Kagema
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
Moses Gatambuki
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
Cognitive Linguistics
multilingual education
phonology
sociolinguistics and syntax
Teresia Kyalo
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
Entrepreneurship
human resource development and strategic management
Geoffrey Wambugu
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
Biodiversity
Conservation
Spatial Ecology
Climate Change
Environmental Planning
Sheila Kilonzi
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
Dezzline Ondigo
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
Fabrication of Nanomaterials
Ezekiel Mbitha Mwenzwa
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
3
0.600
Kellen Kiambati
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
Management
governance
higher education management
public administration
Josephine W. Njambuya
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
Peter K. Musyimi
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Climatology
meteorology
hydro-climatology
Geography
Climate change
Amos Wawire
Karatina University
Karatina, Kenya
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Soil Science
soil fertility
agricultural technology adoption
agricultural knowledge management