Citation Rankings
Highly Cited Researchers

International Center for Tropical Agriculture Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 2025

Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation IndexUniversities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :51
United States
Wuletawu Abera
Hydrology
Big data analytics
remote sensing/GIS
Agriculture
soil and land management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
964
910
0.944
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :53
Italy
Shalika Vyas
Climate Change
Economics
Impact Assessment
Food Security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
826
762
0.923
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :55
Italy
Jonathan Mockshell
Food system
Innovation system
Development policy
Food security
Sustainability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
796
731
0.918
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :56
Italy
Desire Kagabo
Climate Services
Digital Agro Climate
Farming Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
834
692
0.830
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :58
Italy
David Guerena
Tropical Soils
Nutrient Management
Soil Fertility
Smallholder Farming Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
966
659
0.682
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :59
Italy
Johannes Mm Engels
Plant genetic resources conservation and use
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,245
640
0.514
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :61
Italy
Vanya Slavchevska
poverty
gender
labor
agriculture
rural transformation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
880
629
0.715
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :62
United States
Pablo Siles
Land restoration
Agroforestry systems
coffee
bananas
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,064
597
0.561
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :63
United States
Ricardo Hernandez
Food Environment and Consumer Behavior
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,162
543
0.467
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :65
Italy
Ekué, MRM
genetics
conservation
forestry
ethnobotany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
999
515
0.516
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :66
Italy
Muhammad Khalifa
Water Resources Management
Integrated Modelling and Assessment
Remote sensing and Geoinformatics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
501
501
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :67
Italy
Cosmas Lutomia
Agriculture
Food Systems
Food Security
Gender
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
494
493
0.998
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :68
Italy
Emmanuel Mnan Attoh|Emmanuel Nyadzi
Climate Risk
Adaptation
Resilience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
482
466
0.967
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :69
Italy
Daniel Amariles
computer science
agronomy
biodiversity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
509
459
0.902
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :70
Italy
Peter Bolo
soil health
soil fertility
soil biology
agronomy
agroecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
457
448
0.980
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :72
Italy
Muzna Alvi
Labor economics
development economics
feminist economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
429
428
0.998
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :73
Italy
Steven Lam
global health
food security
climate change
evaluation
gender
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
470
426
0.906
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :74
Italy
Byron Reyes
Impact assessment
Seed systems
Agricultural Markets
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
533
423
0.794
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :75
Italy
Ambica Paliwal
Earth Observation Science
GIS
natural resources
agriculture
livestock
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
461
422
0.915
* Last 6 Years Citation Counts Rankings
Rankings
493,098
United States
149,698
9
Ranking Based On Selection: 51
Wuletawu Abera
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
964
910
0.944
Hydrology
Big data analytics
remote sensing/GIS
Agriculture
soil and land management
* Last 6 Years Citation Counts Rankings
Rankings
529,488
Italy
22,674
43
Ranking Based On Selection: 52
Eric Rahn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
969
822
0.848
* Last 6 Years Citation Counts Rankings
Rankings
556,670
Italy
23,697
44
Ranking Based On Selection: 53
Shalika Vyas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
826
762
0.923
* Last 6 Years Citation Counts Rankings
Rankings
564,129
Italy
23,994
45
Ranking Based On Selection: 54
* Last 6 Years Citation Counts Rankings
Rankings
571,686
Italy
24,238
46
Ranking Based On Selection: 55
Food system
Innovation system
Development policy
Food security
Sustainability
* Last 6 Years Citation Counts Rankings
Rankings
591,499
Italy
24,943
47
Ranking Based On Selection: 56
Desire Kagabo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
834
692
0.830
Climate Services
Digital Agro Climate
Farming Systems
* Last 6 Years Citation Counts Rankings
Rankings
603,978
Italy
25,359
48
Ranking Based On Selection: 57
Jeremy Cherfas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,572
668
0.260
* Last 6 Years Citation Counts Rankings
Rankings
609,119
Italy
25,520
49
Ranking Based On Selection: 58
David Guerena
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
966
659
0.682
Tropical Soils
Nutrient Management
Soil Fertility
Smallholder Farming Systems
* Last 6 Years Citation Counts Rankings
Rankings
619,572
Italy
25,865
50
Ranking Based On Selection: 59
Plant genetic resources conservation and use
* Last 6 Years Citation Counts Rankings
Rankings
624,064
Italy
26,026
51
Ranking Based On Selection: 60
Ehsan Dulloo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,749
632
0.361
* Last 6 Years Citation Counts Rankings
Rankings
626,061
Italy
26,091
52
Ranking Based On Selection: 61
poverty
gender
labor
agriculture
rural transformation
* Last 6 Years Citation Counts Rankings
Rankings
644,808
United States
188,283
10
Ranking Based On Selection: 62
Pablo Siles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,064
597
0.561
Land restoration
Agroforestry systems
coffee
bananas
climate change
* Last 6 Years Citation Counts Rankings
Rankings
679,487
United States
196,501
11
Ranking Based On Selection: 63
Ricardo Hernandez
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,162
543
0.467
* Last 6 Years Citation Counts Rankings
Rankings
682,415
Italy
27,879
53
Ranking Based On Selection: 64
Mercy Lung'Aho
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
745
539
0.723
* Last 6 Years Citation Counts Rankings
Rankings
698,698
Italy
28,384
54
Ranking Based On Selection: 65
Ekué, MRM
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
999
515
0.516
* Last 6 Years Citation Counts Rankings
Rankings
709,315
Italy
28,722
55
Ranking Based On Selection: 66
Water Resources Management
Integrated Modelling and Assessment
Remote sensing and Geoinformatics
* Last 6 Years Citation Counts Rankings
Rankings
715,375
Italy
28,921
56
Ranking Based On Selection: 67
Cosmas Lutomia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
494
493
0.998
Agriculture
Food Systems
Food Security
Gender
* Last 6 Years Citation Counts Rankings
Rankings
737,214
Italy
29,594
57
Ranking Based On Selection: 68
Climate Risk
Adaptation
Resilience
* Last 6 Years Citation Counts Rankings
Rankings
742,947
Italy
29,790
58
Ranking Based On Selection: 69
* Last 6 Years Citation Counts Rankings
Rankings
752,626
Italy
30,120
59
Ranking Based On Selection: 70
Peter Bolo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
457
448
0.980
soil health
soil fertility
soil biology
agronomy
agroecology
* Last 6 Years Citation Counts Rankings
Rankings
764,118
Italy
30,484
60
Ranking Based On Selection: 71
* Last 6 Years Citation Counts Rankings
Rankings
770,768
Italy
30,700
61
Ranking Based On Selection: 72
Muzna Alvi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
429
428
0.998
Labor economics
development economics
feminist economics
* Last 6 Years Citation Counts Rankings
Rankings
772,499
Italy
30,760
62
Ranking Based On Selection: 73
Steven Lam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
470
426
0.906
global health
food security
climate change
evaluation
gender
* Last 6 Years Citation Counts Rankings
Rankings
775,275
Italy
30,844
63
Ranking Based On Selection: 74
Byron Reyes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
533
423
0.794
Impact assessment
Seed systems
Agricultural Markets
* Last 6 Years Citation Counts Rankings
Rankings
776,408
Italy
30,877
64
Ranking Based On Selection: 75
Ambica Paliwal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
461
422
0.915
Earth Observation Science
GIS
natural resources
agriculture
livestock