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D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 39 4157 3886 275 258 103 5793

Murray Unkovich publications per year

The chart shows the history of publications by Murray Unkovich between 1980 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Murray Unkovich published across 46 years, from 1980 to 2025, averaging 2.5 papers a year. Output peaked at 16 publications in 2006. 4 of the 114 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1980 to 2025. Vertical axis: number of publications, 0 to 16. Peak 16 publications in 2006. 1980: 1 publication 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 0 publications 1986: 0 publications 1987: 0 publications 1988: 0 publications 1989: 0 publications 1990: 0 publications 1991: 1 publication 1992: 0 publications 1993: 4 publications 1994: 7 publications 1995: 4 publications 1996: 9 publications 1997: 2 publications 1998: 5 publications 1999: 2 publications 2000: 4 publications 2001: 3 publications 2002: 0 publications 2003: 6 publications 2004: 0 publications 2005: 0 publications 2006: 16 publications 2007: 1 publication 2008: 10 publications 2009: 3 publications 2010: 2 publications 2011: 5 publications 2012: 3 publications 2013: 1 publication 2014: 1 publication 2015: 4 publications 2016: 1 publication 2017: 0 publications 2018: 1 publication 2019: 0 publications 2020: 5 publications 2021: 2 publications 2022: 1 publication 2023: 6 publications 2024: 2 publications 2025: 2 publications
1980 2025

114 publications in total across all disciplines

View publications per year as a table
Murray Unkovich: publications per year, 1980 to 2025
Year Publications
1980 1
1981 0
1982 0
1983 0
1984 0
1985 0
1986 0
1987 0
1988 0
1989 0
1990 0
1991 1
1992 0
1993 4
1994 7
1995 4
1996 9
1997 2
1998 5
1999 2
2000 4
2001 3
2002 0
2003 6
2004 0
2005 0
2006 16
2007 1
2008 10
2009 3
2010 2
2011 5
2012 3
2013 1
2014 1
2015 4
2016 1
2017 0
2018 1
2019 0
2020 5
2021 2
2022 1
2023 6
2024 2
2025 2
Total 114
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Murray Unkovich 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 Murray Unkovich sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 88 bars. Horizontal axis: publications, 36–40 to 467+. Vertical axis: number of scientists, 0 to 255. Most scientists, 255, have 111–115 publications. The last bar groups every scientist with 467 publications or more. The highlighted bar, 101–105 publications, is where this scientist sits. 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
36–40 publications 467+

This scientist: 103 publications — 27th percentile

27% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Plant Science and Agronomy scientists by publication count, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
Publications Scientists This scientist
36–40 2
41–45 7
46–50 40
51–55 58
56–60 60
61–65 107
66–70 130
71–75 153
76–80 191
81–85 199
86–90 206
91–95 218
96–100 226
101–105 227 103
106–110 247
111–115 255
116–120 253
121–125 233
126–130 219
131–135 201
136–140 194
141–145 176
146–150 157
151–155 147
156–160 151
161–165 159
166–170 137
171–175 128
176–180 126
181–185 98
186–190 114
191–195 100
196–200 90
201–205 71
206–210 98
211–215 70
216–220 86
221–225 61
226–230 58
231–235 53
236–240 64
241–245 39
246–250 46
251–255 51
256–260 36
261–265 44
266–270 35
271–275 30
276–280 33
281–285 35
286–290 36
291–295 26
296–300 26
301–305 31
306–310 30
311–315 21
316–320 29
321–325 14
326–330 15
331–335 15
336–340 17
341–345 15
346–350 12
351–355 17
356–360 18
361–365 12
366–370 11
371–375 6
376–380 6
381–385 11
386–390 9
391–395 10
396–400 8
401–405 4
406–410 9
411–415 11
416–420 4
421–425 7
426–430 4
431–435 3
436–440 5
441–445 8
446–450 6
451–455 7
456–460 5
461–465 6
466 2
467+ 99
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Murray Unkovich 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 Murray Unkovich sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 80 bars. Horizontal axis: D-Index, 30 to 109+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 34 D-Index. The last bar groups every scientist with 109 D-Index or more. The highlighted bar, 39 D-Index, is where this scientist sits. 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: 39 D-Index — 38th percentile

38% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Plant Science and Agronomy scientists by D-index, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
D-Index Scientists This scientist
30 200
31 236
32 253
33 283
34 288
35 240
36 246
37 243
38 247
39 229 39
40 232
41 230
42 228
43 219
44 193
45 164
46 158
47 143
48 131
49 127
50 122
51 122
52 110
53 102
54 98
55 79
56 85
57 88
58 91
59 62
60 61
61 59
62 54
63 61
64 59
65 58
66 41
67 49
68 39
69 32
70 40
71 47
72 38
73 28
74 29
75 28
76 22
77 21
78 25
79 26
80 19
81 16
82 12
83 16
84 14
85 11
86 17
87 13
88 10
89 12
90 18
91 16
92 16
93 17
94 12
95 8
96 9
97 9
98 11
99 12
100 5
101 8
102 4
103 11
104 5
105 9
106 7
107 4
108 8
109+ 99
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Overview

What is he best known for?

The fields of study he is best known for:

  • Agriculture
  • Ecology
  • Ecosystem

Murray Unkovich spends much of his time researching Agronomy, Nitrogen fixation, Legume, Pasture and Agriculture. He regularly ties together related areas like Crop residue in his Agronomy studies. The concepts of his Nitrogen fixation study are interwoven with issues in Ecosystem, Nitrogen cycle, Botany and Nitrogen assimilation.

His research integrates issues of Lupinus angustifolius, Nitrogen deficiency and Plant roots in his study of Legume. His study in Pasture is interdisciplinary in nature, drawing from both Plant nutrition and Annual plant. His Agriculture research includes elements of Enzyme assay, Water use, Soil water, Carbon accounting and Nitrogenase.

His most cited work include:

  • An appraisal of recent field measurements of symbiotic N2 fixation by annual legumes (305 citations)
  • Measuring plant-associated nitrogen fixation in agricultural systems (279 citations)
  • Potential precision of the δ15N natural abundance method in field estimates of nitrogen fixation by crop and pasture legumes in south-west Australia (155 citations)

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

Agronomy, Nitrogen fixation, Crop, Pasture and Plant nutrition are his primary areas of study. His work carried out in the field of Agronomy brings together such families of science as Soil water and Crop residue. His study looks at the relationship between Nitrogen fixation and fields such as Botany, as well as how they intersect with chemical problems.

The Crop study combines topics in areas such as Fertilizer, Dry matter, Irrigation, Agriculture and Yield. His work deals with themes such as Grazing, Growing season and Annual plant, which intersect with Pasture. Murray Unkovich has researched Legume in several fields, including Field pea and Shoot.

He most often published in these fields:

  • Agronomy (60.78%)
  • Nitrogen fixation (21.57%)
  • Crop (19.61%)

What were the highlights of his more recent work (between 2010-2021)?

  • Agronomy (60.78%)
  • Crop (19.61%)
  • Cropping (8.82%)

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

His primary areas of study are Agronomy, Crop, Cropping, Agriculture and Nitrogen fixation. His work is dedicated to discovering how Agronomy, Plant nutrition are connected with Water use and other disciplines. In his study, which falls under the umbrella issue of Crop, Leaf area index is strongly linked to Yield.

His Agriculture research is multidisciplinary, incorporating perspectives in Agroforestry and Medicago sativa. The various areas that Murray Unkovich examines in his Nitrogen fixation study include Isotope fractionation, Botany and Soil nitrogen. His Dry matter study incorporates themes from Growing region, Nitrogen cycle, Shoot and Nitrate, Nitrate reductase.

Between 2010 and 2021, his most popular works were:

  • Methodologies for estimating nitrogen transfer between legumes and companion species in agro-ecosystems: A review of 15N-enriched techniques (56 citations)
  • Interactions between water and nitrogen in Australian cropping systems: physiological, agronomic, economic, breeding and modelling perspectives (54 citations)
  • Isotope discrimination provides new insight into biological nitrogen fixation (51 citations)

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

  • Agriculture
  • Ecology
  • Ecosystem

Murray Unkovich mainly focuses on Agronomy, Ecosystem, Legume, Nitrogen fixation and Water use. He combines subjects such as Abundance, 15n isotope, Fractionation and Pruning with his study of Ecosystem. Legume is closely attributed to Forage in his study.

His Nitrogen fixation study combines topics in areas such as Soil water, Isotope fractionation and Botany. His studies in Water use integrate themes in fields like Biomass, Plant nutrition and Yield gap. His Plant nutrition research is multidisciplinary, incorporating elements of Grazing, Soil pH and Pasture.

Best Publications

  • Measuring plant-associated nitrogen fixation in agricultural systems

    M. Unkovich;D. Herridge;M. Peoples;G. Cadisch

  • An appraisal of recent field measurements of symbiotic N2 fixation by annual legumes

    Murray J. Unkovich;John S. Pate

  • Variability in harvest index of grain crops and potential significance for carbon accounting: examples from Australian agriculture

    Murray Unkovich;Jeff Baldock;Matthew Forbes

  • Prospects and problems of simple linear models for estimating symbiotic N2 fixation by crop and pasture legumes

    M. J. Unkovich;J. Baldock;M. B. Peoples

  • Potential precision of the δ15N natural abundance method in field estimates of nitrogen fixation by crop and pasture legumes in south-west Australia

    M.J. Unkovich;John Pate;P. Sanford;E.L. Armstrong

  • Net nitrogen balances for cool-season grain legume crops and contributions to wheat nitrogen uptake: a review

    J. Evans;A. M. McNeill;M. J. Unkovich;N. A. Fettell

  • Nitrogen fixation by annual legumes in Australian Mediterranean agriculture

    Murray J. Unkovich;John S. Pate;Paul Sanford

  • Productivity and sustainability of a spring wheat-field pea rotation in a semi-arid environment under conventional and conservation tillage systems

    Gaobao Huang;Renzhi Zhang;Guangdi Li;Lingling Li

  • 15N natural abundance of plant and soil components of a Banksia woodland ecosystem in relation to nitrate utilization, life form, mycorrhizal status and N2-fixing abilities of component species.

    John Pate;G.R. Stewart;M. Unkovich

  • Interactions between water and nitrogen in Australian cropping systems: physiological, agronomic, economic, breeding and modelling perspectives

    V. O. Sadras;P. T. Hayman;D. Rodriguez;M. Monjardino

  • Isotope discrimination provides new insight into biological nitrogen fixation

    Murray Unkovich

  • Factors affecting soil acidification under legumes. III. Acid production by N2-fixing legumes as influenced by nitrate supply

    C. Tang;M. J. Unkovich;J. W. Bowden

  • Methodologies for estimating nitrogen transfer between legumes and companion species in agro-ecosystems: A review of 15N-enriched techniques

    Phillip M. Chalk;Mark B. Peoples;Ann M. McNeill;Robert M. Boddey

  • The Nitrogen Cycle in Terrestrial Ecosystems

    Ann McNeill;Murray Unkovich

  • Characteristics of inorganic nitrogen assimilation of plants in fire-prone Mediterranean-type vegetation

    G.R. Stewart;John Pate;M. Unkovich

  • Farming systems of the Loess Plateau, Gansu Province, China

    Sharna Nolan;Murray Unkovich;Shen Yuying;Li Lingling

  • Can differences in 15N natural abundance be used to quantify the transfer of nitrogen from legumes to neighbouring non-legume plant species?

    Mark B. Peoples;Phillip M. Chalk;Murray J. Unkovich;Robert M. Boddey

  • Selection of reference plants for 15N natural abundance assessment of N2 fixation by crop and pasture legumes in south-west Australia

    John Pate;M.J. Unkovich;E.L. Armstrong;P. Sanford

  • Stable isotope techniques in the study of biological processes and functioning of ecosystems.

    M. Unkovich;John Pate;A. Mcneil;D.J. Gibbs

  • Nitrogen benefits of lupins, field pea, and chickpea to wheat production in south-eastern Australia

    E.L. Armstrong;D.P. Heenan;John Pate;M.J. Unkovich

  • Measurement of asymbiotic N2 fixation in Australian agriculture

    Murray Unkovich;Jeff Baldock

  • Nitrogen Balance of Field Pea Crops in South Western Australia, Studied Using the 15N Natural Abundance Technique

    E.L. Armstrong;John Pate;M.J. Unkovich

Frequent Co-Authors

John S. Pate
John S. Pate University of Western Australia
Ann McNeill
Ann McNeill University of Adelaide
Mark B. Peoples
Mark B. Peoples Commonwealth Scientific and Industrial Research Organisation
Jeff Baldock
Jeff Baldock Commonwealth Scientific and Industrial Research Organisation
David F. Herridge
David F. Herridge University of New England
Zhibiao Nan
Zhibiao Nan Lanzhou University
Robert M. Boddey
Robert M. Boddey Brazilian Agricultural Research Corporation
Ken E. Giller
Ken E. Giller Wageningen University & Research
M. J. Robertson
M. J. Robertson Commonwealth Scientific and Industrial Research Organisation
Andrew Thompson
Andrew Thompson Murdoch University

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