World's Best Scientists 2026 revealed!

D-Index & Metrics

Social Sciences and Humanities

D-Index
44
Citations
8650
World Ranking
4132
National Ranking
1966

Ephraim Nkonya publication distribution in Social Sciences and Humanities in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Social Sciences and Humanities in 2026. The highlighted bar marks where Ephraim Nkonya sits on this spectrum.

44–53 publications: 28 scientists 54–63 publications: 61 scientists 64–73 publications: 161 scientists 74–83 publications: 225 scientists 84–93 publications: 301 scientists 94–103 publications: 390 scientists 104–113 publications: 406 scientists 114–123 publications: 474 scientists 124–133 publications: 453 scientists 134–143 publications: 434 scientists 144–153 publications: 407 scientists 154–163 publications: 411 scientists 164–173 publications: 391 scientists 174–183 publications: 313 scientists 184–193 publications: 319 scientists 194–203 publications: 304 scientists 204–213 publications: 285 scientists 214–223 publications: 246 scientists 224–233 publications: 213 scientists 234–243 publications: 170 scientists 244–253 publications: 167 scientists 254–263 publications: 162 scientists 264–273 publications: 138 scientists 274–283 publications: 138 scientists 284–293 publications: 113 scientists 294–303 publications: 106 scientists 304–313 publications: 95 scientists 314–323 publications: 101 scientists 324–333 publications: 81 scientists 334–343 publications: 69 scientists 344–353 publications: 56 scientists 354–363 publications: 36 scientists 364–373 publications: 42 scientists 374–383 publications: 41 scientists 384–393 publications: 44 scientists 394–403 publications: 27 scientists 404–413 publications: 30 scientists 414–423 publications: 20 scientists 424–433 publications: 29 scientists 434–443 publications: 29 scientists 444–453 publications: 25 scientists 454–463 publications: 19 scientists 464–473 publications: 21 scientists 474–483 publications: 11 scientists 484–493 publications: 17 scientists 494–503 publications: 7 scientists 504–513 publications: 6 scientists 514–523 publications: 12 scientists 524–533 publications: 10 scientists 534–543 publications: 7 scientists 544–553 publications: 6 scientists 554–563 publications: 12 scientists 564–569 publications: 8 scientists 570+ publications: 100 scientists
44 publications 570+

This scientist: 145 publications — 39th percentile

39% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 570 publications or more.

Ephraim Nkonya D-index placement in Social Sciences and Humanities in 2026

The chart shows the D-index (discipline H-index) distribution of Social Sciences and Humanities scientists ranked by Research.com in 2026. The highlighted bar marks where Ephraim Nkonya sits on this spectrum.

30 D-Index: 177 scientists 31 D-Index: 210 scientists 32 D-Index: 222 scientists 33 D-Index: 188 scientists 34 D-Index: 181 scientists 35 D-Index: 243 scientists 36 D-Index: 261 scientists 37 D-Index: 272 scientists 38 D-Index: 278 scientists 39 D-Index: 300 scientists 40 D-Index: 297 scientists 41 D-Index: 308 scientists 42 D-Index: 313 scientists 43 D-Index: 300 scientists 44 D-Index: 269 scientists 45 D-Index: 260 scientists 46 D-Index: 228 scientists 47 D-Index: 251 scientists 48 D-Index: 203 scientists 49 D-Index: 186 scientists 50 D-Index: 187 scientists 51 D-Index: 166 scientists 52 D-Index: 138 scientists 53 D-Index: 141 scientists 54 D-Index: 131 scientists 55 D-Index: 137 scientists 56 D-Index: 109 scientists 57 D-Index: 129 scientists 58 D-Index: 95 scientists 59 D-Index: 105 scientists 60 D-Index: 106 scientists 61 D-Index: 86 scientists 62 D-Index: 94 scientists 63 D-Index: 77 scientists 64 D-Index: 79 scientists 65 D-Index: 59 scientists 66 D-Index: 68 scientists 67 D-Index: 51 scientists 68 D-Index: 49 scientists 69 D-Index: 40 scientists 70 D-Index: 43 scientists 71 D-Index: 40 scientists 72 D-Index: 50 scientists 73 D-Index: 46 scientists 74 D-Index: 43 scientists 75 D-Index: 45 scientists 76 D-Index: 45 scientists 77 D-Index: 30 scientists 78 D-Index: 25 scientists 79 D-Index: 31 scientists 80 D-Index: 29 scientists 81 D-Index: 18 scientists 82 D-Index: 21 scientists 83 D-Index: 26 scientists 84 D-Index: 15 scientists 85 D-Index: 15 scientists 86 D-Index: 19 scientists 87 D-Index: 19 scientists 88 D-Index: 12 scientists 89 D-Index: 7 scientists 90 D-Index: 19 scientists 91 D-Index: 20 scientists 92 D-Index: 13 scientists 93 D-Index: 9 scientists 94 D-Index: 13 scientists 95 D-Index: 8 scientists 96 D-Index: 7 scientists 97 D-Index: 6 scientists 98 D-Index: 6 scientists 99 D-Index: 6 scientists 100+ D-Index: 97 scientists
30 D-Index 100+

This scientist: 44 D-Index — 49th percentile

49% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 100 D-Index or more.

Overview

Ephraim Nkonya is affiliated with the International Food Policy Research Institute in the United States. Their research primarily spans the fields of Agricultural and Biological Sciences as well as Environmental Science.

The scientist's work is divided into subfields including General Agricultural and Biological Sciences, Sociology and Political Science, Ecology, Evolution, Behavior and Systematics, Soil Science, and Ecology. Their research topics cover Agricultural Innovations and Practices, Agriculture, Land Use, Rural Development, Agriculture Sustainability and Environmental Impact, Energy and Environment Impacts, Climate Change impacts on agriculture, Climate Change Adaptation and Migration, and Disaster Management and Resilience.

Frequent coauthors collaborating with Ephraim Nkonya include Edward Kato, Lívia Bíziková, Margitta Minah, Markus Hanisch, and Rama Mohana R. Turaga.

Among the venues where Ephraim Nkonya has published are Nature Food, Global Change Biology, Frontiers in Human Dynamics, International Journal of Agricultural Sustainability, and Green and Low-Carbon Economy.

Recent publications authored or co-authored by Ephraim Nkonya include:

  • A scoping review of the contributions of farmers' organizations to smallholder agriculture, 2020, Nature Food
  • The impact of interventions in the global land and agri-food sectors on Nature's Contributions to People and the UN Sustainable Development Goals, 2020, Global Change Biology
  • Flocking to fire: How climate and natural hazards shape human migration across the United States, 2022, Frontiers in Human Dynamics
  • Soil health and gender: why and how to identify the linkages, 2021, International Journal of Agricultural Sustainability
  • Impact of Farmer-Managed Natural Regeneration on Resilience and Welfare in Mali, 2023, Green and Low-Carbon Economy

Best Publications

  • Impact of Farmer Field Schools on Agricultural Productivity and Poverty in East Africa

    K. Davis;E. Nkonya;E. Kato;D.A. Mekonnen

  • Economics of Land Degradation and Improvement – A Global Assessment for Sustainable Development

    Ephraim Nkonya;Alisher Mirzabaev;Joachim von Braun

  • FACTORS AFFECTING ADOPTION OF IMPROVED MAIZE SEED AND FERTILISER IN NORTHERN TANZANIA

    Ephraim Nkonya;Ted Schroeder;David Norman

  • Understanding the complexities surrounding gender differences in agricultural productivity in Nigeria and Uganda

    Amber Peterman;Agnes Quisumbing;Julia Andrea Behrman;Ephraim Nkonya

  • From Best Practice to Best Fit: A Framework for Designing and Analyzing Pluralistic Agricultural Advisory Services Worldwide

    Regina Birner;Kristin E. Davis;John L. Pender;Ephraim M. Nkonya

  • Which practices co‐deliver food security, climate change mitigation and adaptation, and combat land degradation and desertification?

    Pete Smith;Katherine Calvin;Johnson Nkem;Donovan Campbell

  • Biomass Productivity-Based Mapping of Global Land Degradation Hotspots

    Quang Bao Le;Ephraim Nkonya;Alisher Mirzabaev

  • STRATEGIES TO INCREASE AGRICULTURAL PRODUCTIVITY AND REDUCE LAND DEGRADATION: EVIDENCE FROM UGANDA

    John L. Pender;Ephraim M. Nkonya;Pamela Jagger;Dick Sserunkuuma

  • Strategies For Sustainable Land Management And Poverty Reduction In Uganda

    Ephraim M. Nkonya;John L. Pender;Pamela Jagger;Dick Sserunkuuma

  • Development Pathways and Land Management in Uganda

    John Pender;Pamela Jagger;Ephraim M. Nkonya;Dick Sserunkuuma

  • A scoping review of the contributions of farmers’ organizations to smallholder agriculture

    Livia Bizikova;Ephraim Nkonya;Margitta Minah;Markus Hanisch

  • Yield and economic benefits of common bean (Phaseolus vulgaris) and soybean (Glycine max) inoculation in northern Tanzania

    Patrick Alois Ndakidemi;Felix D Dakora;E.M. Nkonya;D Ringo

  • Constraints to Increasing Agricultural Productivity in Nigeria: A Review

    Dayo Phillip;Ephraim Nkonya;John Pender;Omobowale Ayoola Oni

  • Global Cost of Land Degradation

    Ephraim Nkonya;Weston Anderson;Edward Kato;Jawoo Koo

  • Biological nitrogen fixation and socioeconomic factors for legume production in sub-Saharan Africa: a review

    Jonas. N. Chianu;E. M. Nkonya;F. S. Mairura;Justina. N. Chianu

  • Linkages between Land Management, Land Degradation, and Poverty in Sub-Saharan Africa: The Case of Uganda

    Ephraim M. Nkonya;John L. Pender;Kayuki C. Kaizzi;Edward Kato

  • Returns to spending on agricultural extension: the case of the National Agricultural Advisory Services (NAADS) program of Uganda†

    Samuel Benin;Ephraim Nkonya;Geresom Okecho;Joseé Randriamamonjy

  • Determinants of nutrient balances in a maize farming system in eastern Uganda

    Ephraim Nkonya;Crammer Kaizzi;John Pender

  • Assessing the Impact of the National Agricultural Advisory Services (NAADS) in the Uganda Rural Livelihoods

    Samuel Benin;Ephraim M. Nkonya;Geresom Okecho;John L. Pender

  • The Economics of Desertification, Land Degradation, and Drought Toward an Integrated Global Assessment

    Ephraim Nkonya;Nicolas Gerber;Philipp Baumgartner;Joachim von Braun

  • From "best practice" to "best fit": a framework for designing and analyzing pluralistic agricultural advisory services

    Regina Birner;Kristin Davis;John Pender;Ephraim Nkonya

Frequent Co-Authors

John Pender
John Pender United States Department of Agriculture
Joachim von Braun
Joachim von Braun University of Bonn
Pamela Jagger
Pamela Jagger University of Michigan–Ann Arbor
Ruth Meinzen-Dick
Ruth Meinzen-Dick International Food Policy Research Institute
Amber Peterman
Amber Peterman University of North Carolina at Chapel Hill
Raghavan Srinivasan
Raghavan Srinivasan Texas A&M University
Wei Xiong
Wei Xiong University of Pittsburgh
Giacomo Grassi
Giacomo Grassi Joint Research Centre
Nobuko Saigusa
Nobuko Saigusa National Institute for Environmental Studies
Jean-François Soussana
Jean-François Soussana INRAE : Institut national de recherche pour l'agriculture, l'alimentation et l'environnement

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