Citation Rankings
Highly Cited Researchers

US Department of Agriculture Highly Cited Researchers Citation Rankings 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection :1
United States
Jitender Dubey
Toxoplasmosis
Sarcocystosis
Neosporosis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
119,441
34,081
0.285
* Total Citation Counts Rankings
Ranking Based On Selection :2
United States
Jeffrey G Arnold
Water Resources
Water Quality
Watershed Modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90,290
38,154
0.423
* Total Citation Counts Rankings
Ranking Based On Selection :3
United States
Timothy P Smith
Genomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,065
16,278
0.325
* Total Citation Counts Rankings
Ranking Based On Selection :4
United States
Rufus Chaney
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,444
10,832
0.233
* Total Citation Counts Rankings
Ranking Based On Selection :5
United States
Lindsay Allen
nutrition
micronutrients
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,043
15,998
0.347
* Total Citation Counts Rankings
Ranking Based On Selection :6
United States
Thomas J Jackson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,317
17,992
0.397
* Total Citation Counts Rankings
Ranking Based On Selection :7
United States
Kerry O'Donnell
Evolution
fungi
Fusarium
plant pathology
mycotoxins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,994
17,427
0.396
* Total Citation Counts Rankings
Ranking Based On Selection :8
United States
Pachepsky Y
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,055
15,922
0.370
* Total Citation Counts Rankings
Ranking Based On Selection :9
United States
Cletus P Kurtzman
Yeasts
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,088
14,936
0.355
* Total Citation Counts Rankings
Ranking Based On Selection :10
United States
Bill Kustas
Hydrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,260
15,083
0.384
* Total Citation Counts Rankings
Ranking Based On Selection :11
United States
Martha Anderson
Remote Sensing
Hydrology
Drought
Water use
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,009
23,162
0.609
* Total Citation Counts Rankings
Ranking Based On Selection :12
United States
Elizabeth A (Lisa) Ainsworth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,976
18,055
0.502
* Total Citation Counts Rankings
Ranking Based On Selection :13
United States
Joseph Urban, Jr
Immunology
Parasitology
Nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,791
9,897
0.277
* Total Citation Counts Rankings
Ranking Based On Selection :14
United States
Jay D Evans
honey bees
pollination
genomic
ant
social insect
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,114
14,902
0.424
* Total Citation Counts Rankings
Ranking Based On Selection :15
United States
Mark A Nearing
Soil Erosion
Soil Conservation
Climate Change
Hydrology
Watershed Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,462
12,349
0.393
* Total Citation Counts Rankings
Ranking Based On Selection :16
United States
Xianli Wu, Facn, Cfs
Food Chemistry
Analytical Chemistry
Nutrition
Food Science
Herbal Medicine
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,750
9,570
0.345
* Total Citation Counts Rankings
Ranking Based On Selection :17
United States
Alan Franzluebbers
soil science
agronomy
agriculture
environmental science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,152
11,226
0.413
* Total Citation Counts Rankings
Ranking Based On Selection :18
United States
Tim Smith
Genome biology of livestock species
metagenomics
microbial genomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,110
8,332
0.307
* Total Citation Counts Rankings
Ranking Based On Selection :19
United States
Michael Wisniewski
postharvest biological control
freezing tolerance
cold acclimation
dormancy
disease resistance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,020
9,737
0.389
* Total Citation Counts Rankings
Ranking Based On Selection :20
United States
Jean-Luc Jannink
Quantitative Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,570
13,301
0.541
* Total Citation Counts Rankings
Ranking Based On Selection :21
United States
Steven Cannon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,776
12,038
0.506
* Total Citation Counts Rankings
Ranking Based On Selection :22
United States
Lewis Ziska
Plant Biology
Climate Change
Public Health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,755
10,256
0.451
* Total Citation Counts Rankings
Ranking Based On Selection :23
United States
Jim Cane
pollination
bees
physiological ecology
behavior
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,388
10,158
0.454
* Total Citation Counts Rankings
Ranking Based On Selection :24
United States
Qijian Song
genetics
genomics
soybean
wheat
common bean
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,105
10,718
0.485
* Total Citation Counts Rankings
Ranking Based On Selection :25
United States
Wade Crow
hydrology
remote sensing
water resources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,161
12,843
0.607
* Total Citation Counts Rankings
Rankings
2,196
United States
1,025
1
Ranking Based On Selection: 1
Jitender Dubey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
119,441
34,081
0.285
Toxoplasmosis
Sarcocystosis
Neosporosis
* Total Citation Counts Rankings
Rankings
3,785
United States
1,802
2
Ranking Based On Selection: 2
Jeffrey G Arnold
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
90,290
38,154
0.423
Water Resources
Water Quality
Watershed Modeling
* Total Citation Counts Rankings
Rankings
10,004
United States
4,767
3
Ranking Based On Selection: 3
Timothy P Smith
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,065
16,278
0.325
* Total Citation Counts Rankings
Rankings
11,211
United States
5,315
4
Ranking Based On Selection: 4
Rufus Chaney
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,444
10,832
0.233
* Total Citation Counts Rankings
Rankings
11,351
United States
5,385
5
Ranking Based On Selection: 5
Lindsay Allen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
46,043
15,998
0.347
* Total Citation Counts Rankings
Rankings
11,664
United States
5,534
6
Ranking Based On Selection: 6
Thomas J Jackson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
45,317
17,992
0.397
* Total Citation Counts Rankings
Rankings
12,241
United States
5,816
7
Ranking Based On Selection: 7
Kerry O'Donnell
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,994
17,427
0.396
Evolution
fungi
Fusarium
plant pathology
mycotoxins
* Total Citation Counts Rankings
Rankings
12,695
United States
6,026
8
Ranking Based On Selection: 8
Pachepsky Y
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,055
15,922
0.370
* Total Citation Counts Rankings
Rankings
13,162
United States
6,254
9
Ranking Based On Selection: 9
Cletus P Kurtzman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,088
14,936
0.355
* Total Citation Counts Rankings
Rankings
14,726
United States
6,957
10
Ranking Based On Selection: 10
Bill Kustas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,260
15,083
0.384
* Total Citation Counts Rankings
Rankings
15,482
United States
7,308
11
Ranking Based On Selection: 11
Martha Anderson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,009
23,162
0.609
* Total Citation Counts Rankings
Rankings
16,886
United States
7,940
12
Ranking Based On Selection: 12
Elizabeth A (Lisa) Ainsworth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,976
18,055
0.502
* Total Citation Counts Rankings
Rankings
17,008
United States
7,987
13
Ranking Based On Selection: 13
Joseph Urban, Jr
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,791
9,897
0.277
* Total Citation Counts Rankings
Rankings
17,539
United States
8,231
14
Ranking Based On Selection: 14
Jay D Evans
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,114
14,902
0.424
honey bees
pollination
genomic
ant
social insect
* Total Citation Counts Rankings
Rankings
20,824
United States
9,663
15
Ranking Based On Selection: 15
Mark A Nearing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,462
12,349
0.393
Soil Erosion
Soil Conservation
Climate Change
Hydrology
Watershed Management
* Total Citation Counts Rankings
Rankings
25,236
United States
11,613
16
Ranking Based On Selection: 16
Xianli Wu, Facn, Cfs
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,750
9,570
0.345
Food Chemistry
Analytical Chemistry
Nutrition
Food Science
Herbal Medicine
* Total Citation Counts Rankings
Rankings
26,073
United States
11,974
17
Ranking Based On Selection: 17
Alan Franzluebbers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,152
11,226
0.413
* Total Citation Counts Rankings
Rankings
26,131
United States
12,002
18
Ranking Based On Selection: 18
Tim Smith
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,110
8,332
0.307
Genome biology of livestock species
metagenomics
microbial genomics
* Total Citation Counts Rankings
Rankings
29,459
United States
13,412
19
Ranking Based On Selection: 19
Michael Wisniewski
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,020
9,737
0.389
postharvest biological control
freezing tolerance
cold acclimation
dormancy
disease resistance
* Total Citation Counts Rankings
Rankings
30,296
United States
13,786
20
Ranking Based On Selection: 20
Jean-Luc Jannink
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,570
13,301
0.541
* Total Citation Counts Rankings
Rankings
31,797
United States
14,396
21
Ranking Based On Selection: 21
Steven Cannon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,776
12,038
0.506
* Total Citation Counts Rankings
Rankings
33,800
United States
15,233
22
Ranking Based On Selection: 22
Lewis Ziska
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,755
10,256
0.451
* Total Citation Counts Rankings
Rankings
34,570
United States
15,546
23
Ranking Based On Selection: 23
Jim Cane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,388
10,158
0.454
pollination
bees
physiological ecology
behavior
* Total Citation Counts Rankings
Rankings
35,227
United States
15,813
24
Ranking Based On Selection: 24
Qijian Song
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,105
10,718
0.485
* Total Citation Counts Rankings
Rankings
37,468
United States
16,755
25
Ranking Based On Selection: 25
Wade Crow
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,161
12,843
0.607