Citation Rankings
Highly Cited Researchers

International Center for Tropical Agriculture Highly Cited Researchers CitationAgriculture & Forestry / Agriculture 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 :1
United States
Andy Jarvis
Agriculture
climate change
genetic resources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,969
23,494
0.461
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
United States
Bruce Morgan Campbell
climate change agriculture forestry savanna
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,372
17,918
0.493
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
United States
Louis Verchot
Biogeochemistry
forestry
restoration
land use change
agroforestry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,379
12,161
0.444
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Italy
Aniruddha Ghosh
Agriculture
Climate
Ecology
Data Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,928
7,428
0.748
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Italy
Manabu Ishitani
crop breeding
AI
data-driven agriculture
IoT
genome editing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,405
5,200
0.338
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Italy
Guy Blomme
Plant protection
integrated pest and disease management
agronomy
germplasm evaluation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,451
3,689
0.677
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
United States
Job Kihara
Soil fertility
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,258
3,281
0.624
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Italy
Bhuwon Sthapit
plant breeding
conservation biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,325
2,912
0.312
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Italy
Jennifer Twyman
Agricultural Economics
Gender
Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,611
1,978
0.758
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
United States
Christian Bunn
agriculture
climate change
coffee
cocoa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,446
1,938
0.792
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
Italy
Elizabeth Arnaud
ontology
crops
genetic resources
agriculture
biodiversity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,849
1,868
0.656
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Italy
Birthe Katharina Paul
farming systems
tropical forages
tropical agriculture
soil fertility
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,320
1,804
0.778
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Italy
Ocimati Walter
Plant pathology
crop agronomy
analysis and design of farming systems
ecosystem services
biodiversity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,059
1,800
0.874
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
Italy
Wendy Francesconi
agroforestry
biology
water quality
landscape ecology
ecosystem services modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,853
1,380
0.745
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
United States
Fred Kizito
Agriculture
Landscapes and Ecosystems
Spatial analysis
Water resources management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,188
1,117
0.511
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
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 :18
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 :19
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 :21
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 :22
Italy
Tobias Fremout
forest landscape restoration
agroforestry
sustainable agriculture
ecology
tree biodiversity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
390
389
0.997
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
Italy
Francis Odhiambo Oduor
Agri-nutrition
Food security
Agrobiodiversity
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
385
362
0.940
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
Italy
Templer Noel
résilient seed systems
technology scaling
climate smart agriculture
partnerships
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
295
292
0.990
* Last 6 Years Citation Counts Rankings
Rankings
9,319
United States
3,740
1
Ranking Based On Selection: 1
Andy Jarvis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,969
23,494
0.461
Agriculture
climate change
genetic resources
* Last 6 Years Citation Counts Rankings
Rankings
14,003
United States
5,629
2
Ranking Based On Selection: 2
Bruce Morgan Campbell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,372
17,918
0.493
climate change agriculture forestry savanna
* Last 6 Years Citation Counts Rankings
Rankings
25,226
United States
9,983
4
Ranking Based On Selection: 3
Louis Verchot
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,379
12,161
0.444
Biogeochemistry
forestry
restoration
land use change
agroforestry
* Last 6 Years Citation Counts Rankings
Rankings
52,107
Italy
1,974
7
Ranking Based On Selection: 4
Aniruddha Ghosh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,928
7,428
0.748
* Last 6 Years Citation Counts Rankings
Rankings
84,112
Italy
3,232
10
Ranking Based On Selection: 5
Manabu Ishitani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,405
5,200
0.338
crop breeding
AI
data-driven agriculture
IoT
genome editing
* Last 6 Years Citation Counts Rankings
Rankings
128,424
Italy
5,172
15
Ranking Based On Selection: 6
Guy Blomme
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,451
3,689
0.677
Plant protection
integrated pest and disease management
agronomy
germplasm evaluation
* Last 6 Years Citation Counts Rankings
Rankings
147,273
United States
51,407
5
Ranking Based On Selection: 7
Job Kihara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,258
3,281
0.624
* Last 6 Years Citation Counts Rankings
Rankings
168,527
Italy
7,022
18
Ranking Based On Selection: 8
Bhuwon Sthapit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,325
2,912
0.312
* Last 6 Years Citation Counts Rankings
Rankings
253,715
Italy
10,956
22
Ranking Based On Selection: 9
Jennifer Twyman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,611
1,978
0.758
* Last 6 Years Citation Counts Rankings
Rankings
258,824
United States
84,731
6
Ranking Based On Selection: 10
Christian Bunn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,446
1,938
0.792
* Last 6 Years Citation Counts Rankings
Rankings
268,428
Italy
11,644
26
Ranking Based On Selection: 11
Elizabeth Arnaud
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,849
1,868
0.656
ontology
crops
genetic resources
agriculture
biodiversity
* Last 6 Years Citation Counts Rankings
Rankings
277,594
Italy
12,040
28
Ranking Based On Selection: 12
farming systems
tropical forages
tropical agriculture
soil fertility
climate change
* Last 6 Years Citation Counts Rankings
Rankings
278,207
Italy
12,054
29
Ranking Based On Selection: 13
Ocimati Walter
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,059
1,800
0.874
Plant pathology
crop agronomy
analysis and design of farming systems
ecosystem services
biodiversity
* Last 6 Years Citation Counts Rankings
Rankings
354,613
Italy
15,505
35
Ranking Based On Selection: 14
Wendy Francesconi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,853
1,380
0.745
agroforestry
biology
water quality
landscape ecology
ecosystem services modeling
* Last 6 Years Citation Counts Rankings
Rankings
422,645
United States
130,811
8
Ranking Based On Selection: 15
Fred Kizito
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,188
1,117
0.511
Agriculture
Landscapes and Ecosystems
Spatial analysis
Water resources management
* Last 6 Years Citation Counts Rankings
Rankings
432,323
Italy
18,893
37
Ranking Based On Selection: 16
Clair Hershey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,548
1,085
0.426
* Last 6 Years Citation Counts Rankings
Rankings
591,499
Italy
24,943
47
Ranking Based On Selection: 17
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
609,119
Italy
25,520
49
Ranking Based On Selection: 18
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: 19
Plant genetic resources conservation and use
* Last 6 Years Citation Counts Rankings
Rankings
624,064
Italy
26,026
51
Ranking Based On Selection: 20
Ehsan Dulloo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,749
632
0.361
* Last 6 Years Citation Counts Rankings
Rankings
644,808
United States
188,283
10
Ranking Based On Selection: 21
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
810,578
Italy
31,983
66
Ranking Based On Selection: 22
Tobias Fremout
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
390
389
0.997
forest landscape restoration
agroforestry
sustainable agriculture
ecology
tree biodiversity
* Last 6 Years Citation Counts Rankings
Rankings
840,853
Italy
32,924
69
Ranking Based On Selection: 23
Agri-nutrition
Food security
Agrobiodiversity
* Last 6 Years Citation Counts Rankings
Rankings
912,042
Italy
35,189
83
Ranking Based On Selection: 24
* Last 6 Years Citation Counts Rankings
Rankings
934,114
Italy
35,861
88
Ranking Based On Selection: 25
Templer Noel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
295
292
0.990
résilient seed systems
technology scaling
climate smart agriculture
partnerships