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
Agriculture
Environment
Plant Sciences
Forestry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,340
3,455
0.471
* Total Citation Counts Rankings
Ranking Based On Selection: 2
environmental
agronomy and agricultural sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,425
3,350
0.521
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Agroecology
Agronomy
Soil science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,099
4,161
0.682
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Agrometeorology
Climate Sciences
Farming Systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,531
2,211
0.626
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Soil fertility management
C and N cycling
Biological nitrogen fixation
Climate change adaptation
Farming systems analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,137
1,727
0.551
* Total Citation Counts Rankings
Ranking Based On Selection: 6
soil science
soil and water management
agronomy
environmental science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,322
935
0.403
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,871
1,272
0.680
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Soil Science
Agronomy
Environmental Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,818
1,116
0.614
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Integrated weed management
weed biology and ecology
herbicide physiology and biochemistry
stress physiology and adaptation of plants to stress
systems agronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,669
962
0.576
* Total Citation Counts Rankings
Ranking Based On Selection: 10
Agro-ecological systems
natural resources management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,222
857
0.701
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Agronomy
Climate change adaptation
nutrient cycling
soil fertility
farming systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,211
927
0.765
* Total Citation Counts Rankings
Ranking Based On Selection: 12
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
961
736
0.766
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Land and agrarian questions
Africa
labour
agriculture
food security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
889
590
0.664
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Sustainable Livestock Systems : Nexus-Gender
IKS
Climate Change & Smallholder Animal Agriculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
878
582
0.663
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Soil Fertility Management
Land management
Agroecology
Cropping Systems Agronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
806
555
0.689
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Horticulture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
750
531
0.708
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Agricultural Economics
Environmental and Resource Economics
Rural Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
709
440
0.621
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Plant Pathology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
704
477
0.678
* Total Citation Counts Rankings
Ranking Based On Selection: 19
Agriculture
Soil science
Farming systems
Plant nutrition
Crop modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
656
445
0.678
* Total Citation Counts Rankings
Ranking Based On Selection: 20
Plant Breeding & Genetics
Biotechnology
Seed Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
618
513
0.830
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Forest Pathology
Forestry
Agroforestry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
615
449
0.730
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Plant Breeding and Genetics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
584
501
0.858
* Total Citation Counts Rankings
Ranking Based On Selection: 23
plant breeding
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
583
492
0.844
* Total Citation Counts Rankings
Ranking Based On Selection: 24
rural and urban livelihoods
smallholder irrigation agriculture
project planning and management
monitoring and evaluation
rur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
578
343
0.593
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Animal genetics
nutrition
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
564
440
0.780
Justice Nyamangara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,340
3,455
0.471
Agriculture
Environment
Plant Sciences
Forestry
Paul Mapfumo
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,425
3,350
0.521
environmental
agronomy and agricultural sciences
Regis Chikowo
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,099
4,161
0.682
Agroecology
Agronomy
Soil science
Walter Mupangwa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,531
2,211
0.626
Agrometeorology
Climate Sciences
Farming Systems
Florence Mtambanengwe
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,137
1,727
0.551
Soil fertility management
C and N cycling
Biological nitrogen fixation
Climate change adaptation
Farming systems analysis
Phillip Nyamugafata
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,322
935
0.403
soil science
soil and water management
agronomy
environmental science
George Nyamadzawo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,871
1,272
0.680
Menas Wuta
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,818
1,116
0.614
Soil Science
Agronomy
Environmental Science
Arnold Mashingaidze
Chinhoyi University of Technology
Chinhoyi, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,669
962
0.576
Integrated weed management
weed biology and ecology
herbicide physiology and biochemistry
stress physiology and adaptation of plants to stress
systems agronomy
Kefasi Nyikahadzoi
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,222
857
0.701
Agro-ecological systems
natural resources management
Obert Jiri
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,211
927
0.765
Agronomy
Climate change adaptation
nutrient cycling
soil fertility
farming systems
Edmore Gasura
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
961
736
0.766
Walter Chambati
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
889
590
0.664
Land and agrarian questions
Africa
labour
agriculture
food security
Never Assan
Zimbabwe Open University
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
878
582
0.663
Sustainable Livestock Systems : Nexus-Gender
IKS
Climate Change & Smallholder Animal Agriculture
Hatirarami Nezomba
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
806
555
0.689
Soil Fertility Management
Land management
Agroecology
Cropping Systems Agronomy
Maria Goss
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
750
531
0.708
Emmanuel Mwakiwa
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
709
440
0.621
Agricultural Economics
Environmental and Resource Economics
Rural Development
Elizabeth Ngadze
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
704
477
0.678
Esther Nyaradzo Masvaya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
656
445
0.678
Agriculture
Soil science
Farming systems
Plant nutrition
Crop modelling
Mcebisi Maphosa
Lupane State University
Lupane, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
618
513
0.830
Plant Breeding & Genetics
Biotechnology
Seed Science
Luke Jimu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
615
449
0.730
Forest Pathology
Forestry
Agroforestry
Prince Marowa
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
584
501
0.858
Pepukai Manjeru
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
583
492
0.844
Bernard Chazovachii
Great Zimbabwe University
Masvingo, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
578
343
0.593
rural and urban livelihoods
smallholder irrigation agriculture
project planning and management
monitoring and evaluation
rur
Plaxedis I. Zvinorova
University of Zimbabwe
Harare, Zimbabwe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
564
440
0.780