World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
72
Citations
19067
World Ranking
628
National Ranking
51

Peter J. Gregory publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Peter J. Gregory sits on this spectrum.

36–40 publications: 2 scientists 41–45 publications: 7 scientists 46–50 publications: 40 scientists 51–55 publications: 58 scientists 56–60 publications: 60 scientists 61–65 publications: 107 scientists 66–70 publications: 130 scientists 71–75 publications: 153 scientists 76–80 publications: 191 scientists 81–85 publications: 199 scientists 86–90 publications: 206 scientists 91–95 publications: 218 scientists 96–100 publications: 226 scientists 101–105 publications: 227 scientists 106–110 publications: 247 scientists 111–115 publications: 255 scientists 116–120 publications: 253 scientists 121–125 publications: 233 scientists 126–130 publications: 219 scientists 131–135 publications: 201 scientists 136–140 publications: 194 scientists 141–145 publications: 176 scientists 146–150 publications: 157 scientists 151–155 publications: 147 scientists 156–160 publications: 151 scientists 161–165 publications: 159 scientists 166–170 publications: 137 scientists 171–175 publications: 128 scientists 176–180 publications: 126 scientists 181–185 publications: 98 scientists 186–190 publications: 114 scientists 191–195 publications: 100 scientists 196–200 publications: 90 scientists 201–205 publications: 71 scientists 206–210 publications: 98 scientists 211–215 publications: 70 scientists 216–220 publications: 86 scientists 221–225 publications: 61 scientists 226–230 publications: 58 scientists 231–235 publications: 53 scientists 236–240 publications: 64 scientists 241–245 publications: 39 scientists 246–250 publications: 46 scientists 251–255 publications: 51 scientists 256–260 publications: 36 scientists 261–265 publications: 44 scientists 266–270 publications: 35 scientists 271–275 publications: 30 scientists 276–280 publications: 33 scientists 281–285 publications: 35 scientists 286–290 publications: 36 scientists 291–295 publications: 26 scientists 296–300 publications: 26 scientists 301–305 publications: 31 scientists 306–310 publications: 30 scientists 311–315 publications: 21 scientists 316–320 publications: 29 scientists 321–325 publications: 14 scientists 326–330 publications: 15 scientists 331–335 publications: 15 scientists 336–340 publications: 17 scientists 341–345 publications: 15 scientists 346–350 publications: 12 scientists 351–355 publications: 17 scientists 356–360 publications: 18 scientists 361–365 publications: 12 scientists 366–370 publications: 11 scientists 371–375 publications: 6 scientists 376–380 publications: 6 scientists 381–385 publications: 11 scientists 386–390 publications: 9 scientists 391–395 publications: 10 scientists 396–400 publications: 8 scientists 401–405 publications: 4 scientists 406–410 publications: 9 scientists 411–415 publications: 11 scientists 416–420 publications: 4 scientists 421–425 publications: 7 scientists 426–430 publications: 4 scientists 431–435 publications: 3 scientists 436–440 publications: 5 scientists 441–445 publications: 8 scientists 446–450 publications: 6 scientists 451–455 publications: 7 scientists 456–460 publications: 5 scientists 461–465 publications: 6 scientists 466 publications: 2 scientists 467+ publications: 99 scientists
36 publications 467+

This scientist: 268 publications — 89th percentile

89% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 467 publications or more.

Peter J. Gregory D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Peter J. Gregory sits on this spectrum.

30 D-Index: 200 scientists 31 D-Index: 236 scientists 32 D-Index: 253 scientists 33 D-Index: 283 scientists 34 D-Index: 288 scientists 35 D-Index: 240 scientists 36 D-Index: 246 scientists 37 D-Index: 243 scientists 38 D-Index: 247 scientists 39 D-Index: 229 scientists 40 D-Index: 232 scientists 41 D-Index: 230 scientists 42 D-Index: 228 scientists 43 D-Index: 219 scientists 44 D-Index: 193 scientists 45 D-Index: 164 scientists 46 D-Index: 158 scientists 47 D-Index: 143 scientists 48 D-Index: 131 scientists 49 D-Index: 127 scientists 50 D-Index: 122 scientists 51 D-Index: 122 scientists 52 D-Index: 110 scientists 53 D-Index: 102 scientists 54 D-Index: 98 scientists 55 D-Index: 79 scientists 56 D-Index: 85 scientists 57 D-Index: 88 scientists 58 D-Index: 91 scientists 59 D-Index: 62 scientists 60 D-Index: 61 scientists 61 D-Index: 59 scientists 62 D-Index: 54 scientists 63 D-Index: 61 scientists 64 D-Index: 59 scientists 65 D-Index: 58 scientists 66 D-Index: 41 scientists 67 D-Index: 49 scientists 68 D-Index: 39 scientists 69 D-Index: 32 scientists 70 D-Index: 40 scientists 71 D-Index: 47 scientists 72 D-Index: 38 scientists 73 D-Index: 28 scientists 74 D-Index: 29 scientists 75 D-Index: 28 scientists 76 D-Index: 22 scientists 77 D-Index: 21 scientists 78 D-Index: 25 scientists 79 D-Index: 26 scientists 80 D-Index: 19 scientists 81 D-Index: 16 scientists 82 D-Index: 12 scientists 83 D-Index: 16 scientists 84 D-Index: 14 scientists 85 D-Index: 11 scientists 86 D-Index: 17 scientists 87 D-Index: 13 scientists 88 D-Index: 10 scientists 89 D-Index: 12 scientists 90 D-Index: 18 scientists 91 D-Index: 16 scientists 92 D-Index: 16 scientists 93 D-Index: 17 scientists 94 D-Index: 12 scientists 95 D-Index: 8 scientists 96 D-Index: 9 scientists 97 D-Index: 9 scientists 98 D-Index: 11 scientists 99 D-Index: 12 scientists 100 D-Index: 5 scientists 101 D-Index: 8 scientists 102 D-Index: 4 scientists 103 D-Index: 11 scientists 104 D-Index: 5 scientists 105 D-Index: 9 scientists 106 D-Index: 7 scientists 107 D-Index: 4 scientists 108 D-Index: 8 scientists 109+ D-Index: 99 scientists
30 D-Index 109+

This scientist: 72 D-Index — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 109 D-Index or more.

Overview

What is he best known for?

The fields of study he is best known for:

  • Agriculture
  • Ecology
  • Botany

His primary scientific interests are in Food security, Agronomy, Soil water, Food processing and Ecology. His study in Food security is interdisciplinary in nature, drawing from both Agricultural land, Sustainability, Crop and Agricultural economics. His Agronomy research is multidisciplinary, incorporating elements of Leaching model and Dwarfing.

His studies in Soil water integrate themes in fields like Water use, Agriculture, Agroforestry and Water content. The various areas that Peter J. Gregory examines in his Food processing study include Natural resource economics, Biotechnology and Food systems. His work on Nutrient and Climate change as part of general Ecology study is frequently linked to Discretization and Field, bridging the gap between disciplines.

His most cited work include:

  • Climate change and food security (615 citations)
  • Rhizosphere geometry and heterogeneity arising from root‐mediated physical and chemical processes (401 citations)
  • Competition for land (348 citations)

What are the main themes of his work throughout his whole career to date?

The scientist’s investigation covers issues in Agronomy, Agroforestry, Agriculture, Root system and Soil water. His Agronomy research includes themes of Nutrient and Plant physiology. His Agroforestry research incorporates themes from Sustainable agriculture and Climate change.

His work on Food security as part of general Agriculture research is frequently linked to Social policy and Context, thereby connecting diverse disciplines of science. His Food security study integrates concerns from other disciplines, such as Sustainability and Environmental planning. The concepts of his Root system study are interwoven with issues in Anthesis, Water-use efficiency and Hordeum vulgare.

He most often published in these fields:

  • Agronomy (55.72%)
  • Agroforestry (17.41%)
  • Agriculture (18.41%)

What were the highlights of his more recent work (between 2013-2021)?

  • Agronomy (55.72%)
  • Climate change (13.93%)
  • Agroforestry (17.41%)

In recent papers he was focusing on the following fields of study:

His main research concerns Agronomy, Climate change, Agroforestry, Agriculture and Food security. His studies in Water-use efficiency, Shoot, Root system, Crop and Anthesis are all subfields of Agronomy research. His Climate change study combines topics in areas such as Cropping and Livestock.

His work carried out in the field of Agroforestry brings together such families of science as Crop quality, Crop yield, Crop production, Mixed farming and Greenhouse gas. His research in Food security intersects with topics in Biotechnology, Food processing, Soil fertility and Soil processes. Land use and Agricultural land is closely connected to Food industry in his research, which is encompassed under the umbrella topic of Food processing.

Between 2013 and 2021, his most popular works were:

  • Soil, food security and human health: a review (111 citations)
  • Soil, food security and human health: a review (111 citations)
  • Approaches to reduce zinc and iron deficits in food systems (51 citations)

In his most recent research, the most cited papers focused on:

  • Agriculture
  • Ecology
  • Botany

Peter J. Gregory mainly investigates Shoot, Water-use efficiency, Agronomy, Natural resource economics and Biotechnology. His studies deal with areas such as Canopy, Leaf area index, Root system and Drought tolerance as well as Shoot. His Water-use efficiency study combines topics from a wide range of disciplines, such as Tiller, Anthesis and Seedling.

The Natural resource economics study combines topics in areas such as Food processing, Soil fertility, Soil processes and Food fortification. His Soil processes study incorporates themes from Agricultural land and Food security. His Biotechnology research includes elements of Micronutrient deficiency, Biofortification, Crop and Food systems.

Best Publications

  • Climate change and food security

    P.J. Gregory;J.S.I. Ingram;Michael Brklacich

  • Soil management in relation to sustainable agriculture and ecosystem services

    D S Powlson;P J Gregory;W R Whalley;J N Quinton

  • Integrating pests and pathogens into the climate change/food security debate

    Peter J. Gregory;Scott N. Johnson;Adrian C. Newton;John S. I. Ingram

  • Rhizosphere geometry and heterogeneity arising from root‐mediated physical and chemical processes

    Philippe Hinsinger;George R. Gobran;Peter J. Gregory;Walter W. Wenzel

  • Competition for land

    Pete Smith;Peter J. Gregory;Detlef van Vuuren;Michael Obersteiner

  • Roots, rhizosphere and soil: the route to a better understanding of soil science?

    P.J. Gregory

  • Improving water use efficiency of annual crops in the rainfed farming systems of West Asia and North Africa

    P. J. M. Cooper;P. J. Gregory;D. Tully;H. C. Harris

  • PERFORMANCE OF THE APSIM-WHEAT MODEL IN WESTERN AUSTRALIA

    S Asseng;B.A Keating;I.R.P Fillery;I.R.P Fillery;P.J Gregory

  • Climate change and sustainable food production.

    Pete Smith;Peter J. Gregory

  • Soil, food security and human health: a review

    Margaret A Oliver;Peter Gregory;Peter Gregory

  • Plant roots release phospholipid surfactants that modify the physical and chemical properties of soil

    D. B. Read;A. G. Bengough;P. J. Gregory;J. W. Crawford

  • Matching roots to their environment

    Philip J. White;Timothy S. George;Peter J. Gregory;Peter J. Gregory;A. Glyn Bengough;A. Glyn Bengough

  • Water relations of winter wheat: 1. Growth of the root system

    Unknown

  • Implications of climate change for diseases, crop yields and food security

    Adrian C. Newton;Scott N. Johnson;Peter J. Gregory

  • A vision for attaining food security

    Alison Misselhorn;Pramod Aggarwal;Polly Ericksen;Peter Gregory;Peter Gregory

  • Modelling Cereal Root Systems for Water and Nitrogen Capture: Towards an Economic Optimum

    John King;Roger Sylvester‐Bradley;Ian Bingham

  • Non-invasive imaging of roots with high resolution X-ray micro-tomography

    P. J. Gregory;D. J. Hutchison;D. B. Read;P. M. Jenneson

  • The fate of carbon in pulse-labelled crops of barley and wheat

    P. J. Gregory;B. J. Atwell

  • Phosphatase activity and organic acids in the rhizosphere of potential agroforestry species and maize

    T.S George;P.J Gregory;M Wood;D Read

  • Root phenomics of crops: opportunities and challenges

    Peter J. Gregory;A. Glyn Bengough;Dmitri V. Grinev;Sonja Schmidt

  • Effects of fertilizer, variety and location on barley production under rainfed conditions in Northern Syria 2. Soil water dynamics and crop water use

    P.J.M. Cooper;P.J. Gregory;J.D.H. Keatinge;S.C. Brown

  • Feeding nine billion: the challenge to sustainable crop production

    Peter J. Gregory;Timothy S. George

  • The effects of dwarfing genes on seedling root growth of wheat

    T. Wojciechowski;M.J. Gooding;L. Ramsay;P.J. Gregory

  • Contributions of roots and rootstocks to sustainable, intensified crop production

    Peter J. Gregory;Peter J. Gregory;Christopher J. Atkinson;Christopher J. Atkinson;A. Glynn Bengough;A. Glynn Bengough;Mark A. Else

  • Root growth models: towards a new generation of continuous approaches

    Lionel Dupuy;Peter J. Gregory;A. Glyn Bengough

Frequent Co-Authors

Scott N. Johnson
Scott N. Johnson Western Sydney University
Timothy S. George
Timothy S. George James Hutton Institute
Michael Gooding
Michael Gooding Aberystwyth University
John Ingram
John Ingram University of Oxford
Roland J. Buresh
Roland J. Buresh International Rice Research Institute
S. C. Jarvis
S. C. Jarvis Rothamsted Research
Iain M. Young
Iain M. Young King Abdullah University of Science and Technology
Philip J. White
Philip J. White James Hutton Institute
A. G. Bengough
A. G. Bengough University of Dundee
Paul Hadley
Paul Hadley University of Reading

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Best Scientists Citing Peter J. Gregory

Trending Scientists

Recently Published Articles