Citation Rankings
Highly Cited Researchers
AgResearch Ltd 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 Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,760
10,876
0.422
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Soil
agriculture
nitrogen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,398
6,654
0.640
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
genetics
sheep
bioinformatics
genomics
cattle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,069
6,376
0.374
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Structure and physical functionality of bio-macromolecules
protein biochemistry
food rheology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,993
5,806
0.646
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Agricultural systems
simulation modelling
soil physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,102
5,167
0.511
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Agriculture
Rumen Microbiology
Methane Mitigation
Climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,052
4,338
0.615
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
Metabolomics
Food Science
Nutrition
Biomarkers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,512
3,886
0.517
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,034
3,728
0.413
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Environmental Research
Agricultural greenhouse gas research
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,968
3,582
0.450
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
statistical genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,167
3,504
0.266
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
human nutrition
sustainability
microbiome
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,966
3,474
0.700
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,416
3,288
0.607
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Soil Microbial Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,690
3,199
0.867
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,849
3,165
0.321
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
reproductive biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,402
2,746
0.221
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
food science
protein chemistry
rheology
food materials science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,745
2,741
0.732
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Ruminant Nutrition
Animal Physiology
Dairy Cattle
Calf Nutrition
Animal Welfare
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,345
2,711
0.507
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
animal welfare
animal behaviour
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,915
2,632
0.445
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Biological control of insect pests
beneficial microbial production
pest Scarabaeidae
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,978
2,564
0.429
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
innovation
innovation systems
natural resource management
extension
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,383
2,463
0.562
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
bioinformatics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,971
2,459
0.619
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
Entomology
Insect Ecology
Biological Control
Biosafety
Risk Assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,760
2,408
0.418
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
Ruminant Nutrition
Feed Science
Enteric Methane
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,083
2,336
0.758
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
Cheese
emulsions
flavor
structure
digestion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,100
2,215
0.540
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
genomics
animal genetics
animal breeding
livestock
aquaculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,414
2,167
0.635
* Last 6 Years Citation Counts Rankings
Rankings
29,894
106
1
Ranking Based On Selection: 1
Peter H. Janssen
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,760
10,876
0.422
* Last 6 Years Citation Counts Rankings
Rankings
60,810
250
2
Ranking Based On Selection: 2
Jiafa Luo
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,398
6,654
0.640
Soil
agriculture
nitrogen
* Last 6 Years Citation Counts Rankings
Rankings
64,450
266
3
Ranking Based On Selection: 3
John McEwan
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,069
6,376
0.374
genetics
sheep
bioinformatics
genomics
cattle
* Last 6 Years Citation Counts Rankings
Rankings
72,948
315
4
Ranking Based On Selection: 4
Li Day
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,993
5,806
0.646
Structure and physical functionality of bio-macromolecules
protein biochemistry
food rheology
* Last 6 Years Citation Counts Rankings
Rankings
84,808
374
5
Ranking Based On Selection: 5
Val Snow
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,102
5,167
0.511
Agricultural systems
simulation modelling
soil physics
* Last 6 Years Citation Counts Rankings
Rankings
105,684
480
6
Ranking Based On Selection: 6
Sinead Leahy
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,052
4,338
0.615
Agriculture
Rumen Microbiology
Methane Mitigation
Climate change
* Last 6 Years Citation Counts Rankings
Rankings
120,669
548
7
Ranking Based On Selection: 7
Alastair Ross
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,512
3,886
0.517
Metabolomics
Food Science
Nutrition
Biomarkers
* Last 6 Years Citation Counts Rankings
Rankings
126,857
580
8
Ranking Based On Selection: 8
Maureen O'Callaghan
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,034
3,728
0.413
* Last 6 Years Citation Counts Rankings
Rankings
132,937
610
9
Ranking Based On Selection: 9
Cecile AM de Klein
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,968
3,582
0.450
Environmental Research
Agricultural greenhouse gas research
* Last 6 Years Citation Counts Rankings
Rankings
136,338
625
10
Ranking Based On Selection: 10
Ken Dodds
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,167
3,504
0.266
* Last 6 Years Citation Counts Rankings
Rankings
137,757
632
11
Ranking Based On Selection: 11
Matthew Barnett
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,966
3,474
0.700
human nutrition
sustainability
microbiome
* Last 6 Years Citation Counts Rankings
Rankings
146,896
684
12
Ranking Based On Selection: 12
Adrian Cookson
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,416
3,288
0.607
* Last 6 Years Citation Counts Rankings
Rankings
151,635
706
13
Ranking Based On Selection: 13
Shengjing Shi
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,690
3,199
0.867
* Last 6 Years Citation Counts Rankings
Rankings
153,498
719
14
Ranking Based On Selection: 14
AD Mackay
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,849
3,165
0.321
* Last 6 Years Citation Counts Rankings
Rankings
180,002
860
15
Ranking Based On Selection: 15
Jennifer L. Juengel
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,402
2,746
0.221
* Last 6 Years Citation Counts Rankings
Rankings
180,455
863
16
Ranking Based On Selection: 16
Simon M. Loveday
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,745
2,741
0.732
food science
protein chemistry
rheology
food materials science
* Last 6 Years Citation Counts Rankings
Rankings
182,636
871
17
Ranking Based On Selection: 17
Ajmal Khan
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,345
2,711
0.507
Ruminant Nutrition
Animal Physiology
Dairy Cattle
Calf Nutrition
Animal Welfare
* Last 6 Years Citation Counts Rankings
Rankings
188,520
909
18
Ranking Based On Selection: 18
Karin Schutz
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,915
2,632
0.445
animal welfare
animal behaviour
* Last 6 Years Citation Counts Rankings
Rankings
193,790
941
19
Ranking Based On Selection: 19
Trevor Jackson
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,978
2,564
0.429
Biological control of insect pests
beneficial microbial production
pest Scarabaeidae
* Last 6 Years Citation Counts Rankings
Rankings
202,398
985
20
Ranking Based On Selection: 20
James A. Turner
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,383
2,463
0.562
innovation
innovation systems
natural resource management
extension
* Last 6 Years Citation Counts Rankings
Rankings
202,743
987
21
Ranking Based On Selection: 21
Ruy Jauregui
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,971
2,459
0.619
* Last 6 Years Citation Counts Rankings
Rankings
207,186
1,018
22
Ranking Based On Selection: 22
Barbara IP Barratt
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,760
2,408
0.418
Entomology
Insect Ecology
Biological Control
Biosafety
Risk Assessment
* Last 6 Years Citation Counts Rankings
Rankings
214,031
1,049
23
Ranking Based On Selection: 23
Arjan Jonker
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,083
2,336
0.758
Ruminant Nutrition
Feed Science
Enteric Methane
* Last 6 Years Citation Counts Rankings
Rankings
226,101
1,112
24
Ranking Based On Selection: 24
David W. Everett
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,100
2,215
0.540
* Last 6 Years Citation Counts Rankings
Rankings
231,153
1,140
25
Ranking Based On Selection: 25
Shannon Clarke
AgResearch Ltd
Hamilton, New Zealand
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,414
2,167
0.635
genomics
animal genetics
animal breeding
livestock
aquaculture