The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Feb 01, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (870.053) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
sensors
nutrient management
nitrogen
plant nutrition
developing world agriculture
Metrics
H-Index
i10 Index
Citation Counts
76
224
22,329
* Total H IndexRankings
Ranking Based On Selection: 2
nutrient management
soil
water
plant and animal waste testing and interpretations
Metrics
H-Index
i10 Index
Citation Counts
60
203
14,561
* Total H IndexRankings
Ranking Based On Selection: 3
Metrics
H-Index
i10 Index
Citation Counts
55
101
11,475
* Total H IndexRankings
Ranking Based On Selection: 4
Wood products
composites
Metrics
H-Index
i10 Index
Citation Counts
54
168
8,729
* Total H IndexRankings
Ranking Based On Selection: 5
plant genetics
plant breeding
Metrics
H-Index
i10 Index
Citation Counts
52
145
8,708
* Total H IndexRankings
Ranking Based On Selection: 6
Soil management
soil compaction
tillage
Metrics
H-Index
i10 Index
Citation Counts
47
119
6,812
* Total H IndexRankings
Ranking Based On Selection: 7
Soil physics and hydrology
Rural communities
Metrics
H-Index
i10 Index
Citation Counts
42
82
7,827
* Total H IndexRankings
Ranking Based On Selection: 8
meat science
Metrics
H-Index
i10 Index
Citation Counts
40
85
4,724
* Total H IndexRankings
Ranking Based On Selection: 9
Plant ecology
rangeland management
woody plant invasion in grasslands
fire ecology
rangeland shrubs for bioenergy
Metrics
H-Index
i10 Index
Citation Counts
39
98
5,372
* Total H IndexRankings
Ranking Based On Selection: 10
Sensing and Control
Sensor Network
Precision Agriculture
Metrics
H-Index
i10 Index
Citation Counts
37
75
9,402
* Total H IndexRankings
Ranking Based On Selection: 11
Soil Science
Metrics
H-Index
i10 Index
Citation Counts
34
45
5,068
* Total H IndexRankings
Ranking Based On Selection: 12
plant molecular systematics and evolution
Metrics
H-Index
i10 Index
Citation Counts
33
53
4,660
* Total H IndexRankings
Ranking Based On Selection: 13
Systematics
Phylogenetics
Evolution
Genomics
Plant-Insect Interactions
Metrics
H-Index
i10 Index
Citation Counts
30
49
5,759
* Total H IndexRankings
Ranking Based On Selection: 14
agricultural economics
Metrics
H-Index
i10 Index
Citation Counts
30
49
4,061
* Total H IndexRankings
Ranking Based On Selection: 15
plant biology
genetics
Metrics
H-Index
i10 Index
Citation Counts
30
45
5,010
* Total H IndexRankings
Ranking Based On Selection: 16
Rural Development
broadband
technology
Metrics
H-Index
i10 Index
Citation Counts
28
60
3,078
* Total H IndexRankings
Ranking Based On Selection: 17
Bermudagrasses and switchgrass breeding
genetics
Metrics
H-Index
i10 Index
Citation Counts
28
72
2,622
* Total H IndexRankings
Ranking Based On Selection: 18
Animal science
beef cattle nutrition
beef production systems
Metrics
H-Index
i10 Index
Citation Counts
26
64
2,854
* Total H IndexRankings
Ranking Based On Selection: 19
Amino acids
bioactive peptides
glycemic control
metabolic health
Metrics
H-Index
i10 Index
Citation Counts
25
42
1,963
* Total H IndexRankings
Ranking Based On Selection: 20
Plant Molecular Biology
Metrics
H-Index
i10 Index
Citation Counts
25
42
2,674
* Total H IndexRankings
Ranking Based On Selection: 21
fisheries
Metrics
H-Index
i10 Index
Citation Counts
24
45
1,530
* Total H IndexRankings
Ranking Based On Selection: 22
crops
wheat
soybean
corn
agronomy
Metrics
H-Index
i10 Index
Citation Counts
24
42
2,063
* Total H IndexRankings
Ranking Based On Selection: 23
algal phisiology
algal ecology
algal biofuels
Metrics
H-Index
i10 Index
Citation Counts
24
29
2,947
* Total H IndexRankings
Ranking Based On Selection: 24
Agricultural Water Resources
Irrigation & Drainage
Remote Sensing
GIS
Metrics
H-Index
i10 Index
Citation Counts
23
40
1,966
* Total H IndexRankings
Ranking Based On Selection: 25
Plant Virology
Biosecurity
Microbial Forensics
Metrics
H-Index
i10 Index
Citation Counts
23
47
2,229
William Raun
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
76
224
22,329
sensors
nutrient management
nitrogen
plant nutrition
developing world agriculture
Hailin Zhang
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
60
203
14,561
nutrient management
soil
water
plant and animal waste testing and interpretations
Richard S Nelson
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
55
101
11,475
Salim Hiziroglu
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
54
168
8,729
Brett F Carver
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
52
145
8,708
Randy Raper
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
47
119
6,812
Soil management
soil compaction
tillage
Tyson E Ochsner
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
42
82
7,827
Soil physics and hydrology
Rural communities
Dl Vanoverbeke
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
40
85
4,724
R James Jim Ansley
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
39
98
5,372
Plant ecology
rangeland management
woody plant invasion in grasslands
fire ecology
rangeland shrubs for bioenergy
Ning Wang
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
37
75
9,402
Sensing and Control
Sensor Network
Precision Agriculture
Shiping Deng
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
34
45
5,068
Linda E Watson
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
33
53
4,660
plant molecular systematics and evolution
Mark Fishbein
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
30
49
5,759
Systematics
Phylogenetics
Evolution
Genomics
Plant-Insect Interactions
F Bailey Norwood
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
30
49
4,061
agricultural economics
Andrew Doust
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
30
45
5,010
Brian Whitacre
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
28
60
3,078
Rural Development
broadband
technology
Yanqi Wu
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
28
72
2,622
Bermudagrasses and switchgrass breeding
genetics
David L Lalman
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
26
64
2,854
Animal science
beef cattle nutrition
beef production systems
Adel Pezeshki
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
25
42
1,963
Amino acids
bioactive peptides
glycemic control
metabolic health
Ramamurthy Mahalingam
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
25
42
2,674
Shannon K Brewer
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
24
45
1,530
JT Edwards
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
24
42
2,063
crops
wheat
soybean
corn
agronomy
Bill Henley
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
24
29
2,947
algal phisiology
algal ecology
algal biofuels
Saleh Taghvaeian
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
23
40
1,966
Agricultural Water Resources
Irrigation & Drainage
Remote Sensing
GIS
Francisco Ochoa Corona
Oklahoma State University Stillwater
Stillwater, United States
Metrics
H-Index
i10-Index
Citation Counts
23
47
2,229
Plant Virology
Biosecurity
Microbial Forensics