Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
* Total Citation Counts Rankings
World Rank
494,426
Country Rank
10
Institution Rank : 6
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Juana P. Moiwo](https://cdn.adscientificindex.com/pictures/86/4986722.jpg)
Agricultural Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,649
973
0.590
* Total Citation Counts Rankings
World Rank
737,250
Country Rank
16
Institution Rank : 1
![](https://cdn.adscientificindex.com/logos/16744.png)
![Sierra Leone](/flags/sl.png)
![Adam S Kanu](https://cdn.adscientificindex.com/pictures/30/5011088.jpg)
Cereal Crops Research. plant stress
soil remediation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
827
751
0.908
* Total Citation Counts Rankings
World Rank
768,948
Country Rank
19
Institution Rank : 10
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Sheku Alfred Kanu](https://cdn.adscientificindex.com/pictures/c0/4360593.jpg)
Argriculture
Plant Physiology
Biological Nitrogen Fixation
Water Quality Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
756
630
0.833
* Total Citation Counts Rankings
World Rank
769,072
Country Rank
20
Institution Rank : 11
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Mathew Didlyn Kpundeh|Kpundeh Mathew Didlyn, Kpundeh M.D, Mathew D. Kpundeh](https://cdn.adscientificindex.com/pictures/98/4986724.jpg)
Blue Economic diversification in the era of Climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
756
506
0.669
* Total Citation Counts Rankings
World Rank
955,498
Country Rank
28
Institution Rank : 14
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Roland Suluku](https://cdn.adscientificindex.com/pictures/4f/4360701.jpg)
Animal dtsease dog rabies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
419
266
0.635
* Total Citation Counts Rankings
World Rank
1,019,248
Country Rank
30
Institution Rank : 15
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Moses Fayiah](https://cdn.adscientificindex.com/pictures/02/4360742.jpg)
Forestry
Biodiversity
Ecosystem function Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
329
0.988
* Total Citation Counts Rankings
World Rank
1,065,487
Country Rank
32
Institution Rank : 16
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Alie Kamara](https://cdn.adscientificindex.com/pictures/7a/4308806.jpg)
soil fertility
soil chemistry
biochar
soil erosion and nutrient leaching
remote sensing and GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
283
218
0.770
* Total Citation Counts Rankings
World Rank
1,147,455
Country Rank
39
Institution Rank : 5
![](https://cdn.adscientificindex.com/logos/16744.png)
![Sierra Leone](/flags/sl.png)
![Osman Nabay](https://cdn.adscientificindex.com/pictures/8f/4480933.jpg)
Agricultural Development and Policy
Applied Economic Research
Project Management and Program
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
216
157
0.727
* Total Citation Counts Rankings
World Rank
1,205,843
Country Rank
45
Institution Rank : 20
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Denis Magnus Ken Amara](https://cdn.adscientificindex.com/pictures/b3/4986727.jpg)
Soil science
agronomy
climate change
land evaluation
remote sensing and GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
180
148
0.822
* Total Citation Counts Rankings
World Rank
1,318,169
Country Rank
51
Institution Rank : 24
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Joseph Sherman Kamara](https://cdn.adscientificindex.com/pictures/07/4360681.jpg)
Posthavest food and bioprocess engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129
100
0.775
* Total Citation Counts Rankings
World Rank
1,334,241
Country Rank
52
Institution Rank : 25
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Olapade Olufemi Julius](https://cdn.adscientificindex.com/pictures/c9/4986728.jpg)
Fish nutrition
Toxicology and Project Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
123
94
0.764
* Total Citation Counts Rankings
World Rank
1,380,489
Country Rank
56
Institution Rank : 6
![](https://cdn.adscientificindex.com/logos/16744.png)
![Sierra Leone](/flags/sl.png)
![Gibrilla Dumbuya](https://cdn.adscientificindex.com/pictures/68/4480518.jpg)
Climate change
Agronomy
Crop physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
107
92
0.860
* Total Citation Counts Rankings
World Rank
1,578,147
Country Rank
67
Institution Rank : 33
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Mr. Sheku Kenway Moiforay](/pictures/ec/4986734.jpg)
Ruminant Nutrition and Production
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59
32
0.542
* Total Citation Counts Rankings
World Rank
1,617,084
Country Rank
72
Institution Rank : 37
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Umaru Mohamed Gassama](/pictures/15/4488446.jpg)
Crop production and physiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52
36
0.692
* Total Citation Counts Rankings
World Rank
1,645,071
Country Rank
74
Institution Rank : 38
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Mohamed Matthew Blango](https://cdn.adscientificindex.com/pictures/dc/4575696.jpg)
Agricultural Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47
46
0.979
* Total Citation Counts Rankings
World Rank
1,747,286
Country Rank
80
Institution Rank : 42
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Emmanuel Kangoma](/user/assets/images/profile/no-profile-photo.png)
Soil and Water Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33
32
0.970
* Total Citation Counts Rankings
World Rank
1,839,490
Country Rank
86
Institution Rank : 44
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Abdul Rahman Sesay](/pictures/77/4766857.jpg)
Animal Breeding and Genetics
Biosecurity and Biosafety
Climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23
23
1.000
* Total Citation Counts Rankings
World Rank
1,945,037
Country Rank
90
Institution Rank : 46
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Amidu Mansaray](/user/assets/images/profile/no-profile-photo.png)
Fresh and Marine Water Environment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total Citation Counts Rankings
World Rank
2,112,043
Country Rank
103
Institution Rank : 53
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Saffa Lansana](/pictures/c8/4766856.jpg)
Physical Geography
Agricultural Geography
Spatial Planning
GIS and EIA
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total Citation Counts Rankings
World Rank
2,112,043
Country Rank
103
Institution Rank : 53
![](https://cdn.adscientificindex.com/logos/6383.jpg)
![Sierra Leone](/flags/sl.png)
![Mr. Abdulai Barrie](/pictures/3e/4937681.jpg)
Forestry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
494,426
![Sierra Leone](/flags/sl.png)
10
![](https://cdn.adscientificindex.com/logos/6383.jpg)
6
Juana P. Moiwo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,649
973
0.590
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Agricultural Engineering
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
737,250
![Sierra Leone](/flags/sl.png)
16
![](https://cdn.adscientificindex.com/logos/16744.png)
1
Adam S Kanu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
827
751
0.908
![](https://cdn.adscientificindex.com/logos/16744.png)
Cereal Crops Research. plant stress
soil remediation
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
768,948
![Sierra Leone](/flags/sl.png)
19
![](https://cdn.adscientificindex.com/logos/6383.jpg)
10
Sheku Alfred Kanu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
756
630
0.833
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Argriculture
Plant Physiology
Biological Nitrogen Fixation
Water Quality Management
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
769,072
![Sierra Leone](/flags/sl.png)
20
![](https://cdn.adscientificindex.com/logos/6383.jpg)
11
Mathew Didlyn Kpundeh|Kpundeh Mathew Didlyn, Kpundeh M.D, Mathew D. Kpundeh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
756
506
0.669
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Blue Economic diversification in the era of Climate change
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
955,498
![Sierra Leone](/flags/sl.png)
28
![](https://cdn.adscientificindex.com/logos/6383.jpg)
14
Roland Suluku
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
419
266
0.635
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,019,248
![Sierra Leone](/flags/sl.png)
30
![](https://cdn.adscientificindex.com/logos/6383.jpg)
15
Moses Fayiah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
329
0.988
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Forestry
Biodiversity
Ecosystem function Environment
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,065,487
![Sierra Leone](/flags/sl.png)
32
![](https://cdn.adscientificindex.com/logos/6383.jpg)
16
Alie Kamara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
283
218
0.770
![](https://cdn.adscientificindex.com/logos/6383.jpg)
soil fertility
soil chemistry
biochar
soil erosion and nutrient leaching
remote sensing and GIS
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,147,455
![Sierra Leone](/flags/sl.png)
39
![](https://cdn.adscientificindex.com/logos/16744.png)
5
Osman Nabay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
216
157
0.727
![](https://cdn.adscientificindex.com/logos/16744.png)
Agricultural Development and Policy
Applied Economic Research
Project Management and Program
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,205,843
![Sierra Leone](/flags/sl.png)
45
![](https://cdn.adscientificindex.com/logos/6383.jpg)
20
Denis Magnus Ken Amara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
180
148
0.822
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Soil science
agronomy
climate change
land evaluation
remote sensing and GIS
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,318,169
![Sierra Leone](/flags/sl.png)
51
![](https://cdn.adscientificindex.com/logos/6383.jpg)
24
Joseph Sherman Kamara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
129
100
0.775
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Posthavest food and bioprocess engineering
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![Adscientificindex](/assets/images/banner_click.png)
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,334,241
![Sierra Leone](/flags/sl.png)
52
![](https://cdn.adscientificindex.com/logos/6383.jpg)
25
Olapade Olufemi Julius
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
123
94
0.764
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Fish nutrition
Toxicology and Project Management
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,380,489
![Sierra Leone](/flags/sl.png)
56
![](https://cdn.adscientificindex.com/logos/16744.png)
6
Gibrilla Dumbuya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
107
92
0.860
![](https://cdn.adscientificindex.com/logos/16744.png)
Climate change
Agronomy
Crop physiology
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,578,147
![Sierra Leone](/flags/sl.png)
67
![](https://cdn.adscientificindex.com/logos/6383.jpg)
33
Mr. Sheku Kenway Moiforay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59
32
0.542
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Ruminant Nutrition and Production
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,617,084
![Sierra Leone](/flags/sl.png)
72
![](https://cdn.adscientificindex.com/logos/6383.jpg)
37
Umaru Mohamed Gassama
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52
36
0.692
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,645,071
![Sierra Leone](/flags/sl.png)
74
![](https://cdn.adscientificindex.com/logos/6383.jpg)
38
Mohamed Matthew Blango
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47
46
0.979
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Agricultural Engineering
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,747,286
![Sierra Leone](/flags/sl.png)
80
![](https://cdn.adscientificindex.com/logos/6383.jpg)
42
Emmanuel Kangoma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33
32
0.970
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Soil and Water Engineering
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,839,490
![Sierra Leone](/flags/sl.png)
86
![](https://cdn.adscientificindex.com/logos/6383.jpg)
44
Abdul Rahman Sesay
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23
23
1.000
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Animal Breeding and Genetics
Biosecurity and Biosafety
Climate change
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
1,945,037
![Sierra Leone](/flags/sl.png)
90
![](https://cdn.adscientificindex.com/logos/6383.jpg)
46
Amidu Mansaray
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
2,112,043
![Sierra Leone](/flags/sl.png)
103
![](https://cdn.adscientificindex.com/logos/6383.jpg)
53
Saffa Lansana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
![](https://cdn.adscientificindex.com/logos/6383.jpg)
Physical Geography
Agricultural Geography
Spatial Planning
GIS and EIA
* Total Citation Counts Rankings
Rankings
![](/assets/images/world-icon.png)
2,112,043
![Sierra Leone](/flags/sl.png)
103
![](https://cdn.adscientificindex.com/logos/6383.jpg)
53
Mr. Abdulai Barrie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000