Africa

Citation Rankings
Highly Cited Researchers

Africa Agriculture & Forestry / Soil Sciences and Plant Nutrition Highly Cited Researchers 498 Scientists Citation Rankings - 2025

Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.

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Total 498 scientists, 123 country, 1.448 institution
* Total Citation Rankings

Rankings

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24,332
World Rank
South Africa
71
Country Rank
North West University Logo
3
University
Ranking Based On Selection:
1
Olubukola Oluranti Babalola
North West University Potchefstroom, South Africa
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Microbial Ecology | Soil Metagenomics | Plant-Microbe Interaction

Citation Metrics

  • Total
    30,021
  • Last 6 Years
    26,343
  • Last 6 Years / Total
    0.877
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* Total Citation Rankings

Rankings

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95,677
World Rank
Tanzania
4
Country Rank
Nelson Mandela African Institute of Science & Technology Logo
1
University
Ranking Based On Selection:
2
Patrick Ndakidemi
Nelson Mandela African Institute of Science & Technology Arusha, Tanzania
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Plant and Soil Science

Citation Metrics

  • Total
    11,053
  • Last 6 Years
    7,285
  • Last 6 Years / Total
    0.659
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* Total Citation Rankings

Rankings

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122,381
World Rank
Kenya
33
Country Rank
World Agroforestry (ICRAF) Logo
9
University
Ranking Based On Selection:
3
Leigh Winowiecki
World Agroforestry (ICRAF) Nairobi, Kenya
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Soil | Agroforestry | Carbon Cycling | Land Healt

Citation Metrics

  • Total
    8,755
  • Last 6 Years
    5,861
  • Last 6 Years / Total
    0.669
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* Total Citation Rankings

Rankings

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124,280
World Rank
South Africa
470
Country Rank
Stellenbosch University Logo
71
University
Ranking Based On Selection:
4
Servaas Van Der Berg
Stellenbosch University Stellenbosch, South Africa
Agriculture & Forestry / Soil Sciences and Plant Nutrition

Citation Metrics

  • Total
    8,647
  • Last 6 Years
    2,798
  • Last 6 Years / Total
    0.324
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* Total Citation Rankings

Rankings

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124,863
World Rank
Egypt
193
Country Rank
Kafr El Sheikh University Logo
8
University
Ranking Based On Selection:
5
Hassan El Ramady
Kafr El Sheikh University Kafr el-Sheikh, Egypt
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Nano selenium | Nano nutrients | nanofibers | Plant nutritio

Citation Metrics

  • Total
    8,610
  • Last 6 Years
    7,286
  • Last 6 Years / Total
    0.846
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* Total Citation Rankings

Rankings

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130,900
World Rank
Nigeria
69
Country Rank
University of Calabar Logo
1
University
Ranking Based On Selection:
6
A. Egrinya Eneji
University of Calabar Calabar, Nigeria
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Agronom

Citation Metrics

  • Total
    8,249
  • Last 6 Years
    3,953
  • Last 6 Years / Total
    0.479
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* Total Citation Rankings

Rankings

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133,438
World Rank
Ghana
35
Country Rank
Kwame Nkrumah University of Science & Technology Logo
10
University
Ranking Based On Selection:
7
Robert Clement Abaidoo
Kwame Nkrumah University of Science & Technology Kumasi, Ghana
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Biological Sciences | Soil Microbiology | ISF

Citation Metrics

  • Total
    8,103
  • Last 6 Years
    3,955
  • Last 6 Years / Total
    0.488
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* Total Citation Rankings

Rankings

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146,341
World Rank
South Africa
578
Country Rank
University of Pretoria Logo
49
University
Ranking Based On Selection:
8
Nigel Barker
University of Pretoria Pretoria, South Africa
Agriculture & Forestry / Soil Sciences and Plant Nutrition
biodiversit

Citation Metrics

  • Total
    7,448
  • Last 6 Years
    1,850
  • Last 6 Years / Total
    0.248
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* Total Citation Rankings

Rankings

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159,318
World Rank
South Africa
627
Country Rank
University of Pretoria Logo
55
University
Ranking Based On Selection:
9
Jacobus Johannes Marion Meyer
University of Pretoria Pretoria, South Africa
Agriculture & Forestry / Soil Sciences and Plant Nutrition

Citation Metrics

  • Total
    6,866
  • Last 6 Years
    2,447
  • Last 6 Years / Total
    0.356
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* Total Citation Rankings

Rankings

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159,615
World Rank
Zimbabwe
6
Country Rank
University of Zimbabwe Logo
4
University
Ranking Based On Selection:
10
Regis Chikowo
University of Zimbabwe Harare, Zimbabwe
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Agroecology | Agronomy | Soil scienc

Citation Metrics

  • Total
    6,852
  • Last 6 Years
    4,369
  • Last 6 Years / Total
    0.638
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* Total Citation Rankings

Rankings

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176,431
World Rank
South Africa
717
Country Rank
University of Cape Town Logo
170
University
Ranking Based On Selection:
11
Charlene Janion-Scheepers
University of Cape Town Cape Town, South Africa
Agriculture & Forestry / Soil Sciences and Plant Nutrition
beta diversity | Collembola | taxonomy | soil fauna diversity | soil ecolog

Citation Metrics

  • Total
    6,218
  • Last 6 Years
    4,395
  • Last 6 Years / Total
    0.707
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* Total Citation Rankings

Rankings

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180,347
World Rank
Nigeria
129
Country Rank
International Institute of Tropical Agriculture (IITA) Logo
7
University
Ranking Based On Selection:
12
Lieven Claessens
International Institute of Tropical Agriculture (IITA) Oyo, Nigeria
Agriculture & Forestry / Soil Sciences and Plant Nutrition
climate smart agriculture | sustainable intensification | food security | soil science | geomorpholog

Citation Metrics

  • Total
    6,079
  • Last 6 Years
    3,365
  • Last 6 Years / Total
    0.554
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* Total Citation Rankings

Rankings

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202,353
World Rank
Egypt
387
Country Rank
Mansoura University Logo
36
University
Ranking Based On Selection:
13
Ahmed Mosa
Mansoura University Mansoura, Egypt
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Soil Chemistr

Citation Metrics

  • Total
    5,411
  • Last 6 Years
    4,262
  • Last 6 Years / Total
    0.788
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* Total Citation Rankings

Rankings

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205,227
World Rank
Egypt
397
Country Rank
Ain Shams University Logo
36
University
Ranking Based On Selection:
14
Ali El Naggar
Ain Shams University Cairo, Egypt
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Soil quality | Biochar | Environmental Soil Science | Soil fertilit

Citation Metrics

  • Total
    5,333
  • Last 6 Years
    5,127
  • Last 6 Years / Total
    0.961
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* Total Citation Rankings

Rankings

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226,546
World Rank
Egypt
464
Country Rank
National Authority for Remote Sensing and Space Sciences Logo
1
University
Ranking Based On Selection:
15
Elsayed Said Mohamed Salama
National Authority for Remote Sensing and Space Sciences Cairo, Egypt
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Soil Sciences | Remote sensing | Environmental assessmen

Citation Metrics

  • Total
    4,944
  • Last 6 Years
    4,275
  • Last 6 Years / Total
    0.865
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* Total Citation Rankings

Rankings

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229,315
World Rank
Kenya
97
Country Rank
Kenyatta University Logo
4
University
Ranking Based On Selection:
16
Monicah Mucheru-Muna
Kenyatta University Nairobi, Kenya
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Climate variability | soil fertility | community participation | environmental conservatio

Citation Metrics

  • Total
    4,744
  • Last 6 Years
    3,100
  • Last 6 Years / Total
    0.653
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* Total Citation Rankings

Rankings

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235,990
World Rank
South Africa
988
Country Rank
University of Fort Hare Logo
11
University
Ranking Based On Selection:
17
Pearson Nyari Stephano Mnkeni
University of Fort Hare Alice, South Africa
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Soil fertility | waste management | Vermicomposting | Agronomy | climate smart agricultur

Citation Metrics

  • Total
    4,605
  • Last 6 Years
    2,309
  • Last 6 Years / Total
    0.501
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* Total Citation Rankings

Rankings

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239,187
World Rank
Kenya
107
Country Rank
Kenyatta University Logo
5
University
Ranking Based On Selection:
18
Jayne Mugwe
Kenyatta University Nairobi, Kenya
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Soil fertility Agroforestry Agricultural Sciences and Research Method

Citation Metrics

  • Total
    4,535
  • Last 6 Years
    2,693
  • Last 6 Years / Total
    0.594
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* Total Citation Rankings

Rankings

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241,043
World Rank
Ethiopia
131
Country Rank
Addis Ababa University Logo
38
University
Ranking Based On Selection:
19
Eyasu Elias
Addis Ababa University Addis Ababa, Ethiopia
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Soils | Environment | Ecology | dryland ecosystem | agricultur

Citation Metrics

  • Total
    4,499
  • Last 6 Years
    3,568
  • Last 6 Years / Total
    0.793
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* Total Citation Rankings

Rankings

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244,533
World Rank
Kenya
114
Country Rank
University of Nairobi Logo
30
University
Ranking Based On Selection:
20
Charles KK Gachene
University of Nairobi Nairobi, Kenya
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Soil and water | management | Remote sensing and GI

Citation Metrics

  • Total
    4,428
  • Last 6 Years
    2,656
  • Last 6 Years / Total
    0.600
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* Total Citation Rankings

Rankings

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253,777
World Rank
South Africa
1,079
Country Rank
University of Pretoria Logo
98
University
Ranking Based On Selection:
21
Gary I Stafford
University of Pretoria Pretoria, South Africa
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Ethnobotany | Ethnopharmacology | Plant Science | Phylogenetics | Evolutio

Citation Metrics

  • Total
    4,257
  • Last 6 Years
    1,516
  • Last 6 Years / Total
    0.356
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* Total Citation Rankings

Rankings

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266,499
World Rank
Egypt
625
Country Rank
Zagazig University Logo
30
University
Ranking Based On Selection:
22
Ahmed Elrys
Zagazig University Sharqia, Egypt
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Nitrogen transformation | Nitrogen budget | Nitrogen footprint | Stres

Citation Metrics

  • Total
    4,033
  • Last 6 Years
    3,960
  • Last 6 Years / Total
    0.982
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* Total Citation Rankings

Rankings

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266,652
World Rank
Nigeria
275
Country Rank
International Institute of Tropical Agriculture (IITA) Logo
13
University
Ranking Based On Selection:
23
E. Jeroen Huising
International Institute of Tropical Agriculture (IITA) Oyo, Nigeria
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Soil Ecology | Soil Science | Natural Resources Management | Soil Fertility | Soil Biolog

Citation Metrics

  • Total
    4,027
  • Last 6 Years
    1,780
  • Last 6 Years / Total
    0.442
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* Total Citation Rankings

Rankings

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281,968
World Rank
Egypt
675
Country Rank
Kafr El Sheikh University Logo
19
University
Ranking Based On Selection:
24
Tarek Alshaal
Kafr El Sheikh University Kafr el-Sheikh, Egypt
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Plant nutrition | soil microbiology | soil ecology | environmental pollutio

Citation Metrics

  • Total
    3,906
  • Last 6 Years
    3,238
  • Last 6 Years / Total
    0.829
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* Total Citation Rankings

Rankings

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275,939
World Rank
Zimbabwe
11
Country Rank
Marondera University of Agricultural Sciences and Technology MUAST Logo
2
University
Ranking Based On Selection:
25
Walter Mupangwa
Marondera University of Agricultural Sciences and Technology MUAST Marondera, Zimbabwe
Agriculture & Forestry / Soil Sciences and Plant Nutrition
Agrometeorology | Climate Sciences | Farming Systems | Agroecology | Multi-functional landscape

Citation Metrics

  • Total
    3,871
  • Last 6 Years
    2,284
  • Last 6 Years / Total
    0.590
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