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Ian A. Merwin

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 31 6224 5824 1501 1336 92 3491

Ian A. Merwin publications per year

The chart shows the history of publications by Ian A. Merwin between 1989 and 2016, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Ian A. Merwin published across 28 years, from 1989 to 2016, averaging 3.3 papers a year. Output peaked at 10 publications in 1994. 2 of the 93 publications appeared in the last two years.

No. of publications
2 4 6 8 10
Bar chart. Horizontal axis: year, 1989 to 2016. Vertical axis: number of publications, 0 to 10. Peak 10 publications in 1994. 1989: 1 publication 1990: 1 publication 1991: 2 publications 1992: 2 publications 1993: 2 publications 1994: 10 publications 1995: 6 publications 1996: 3 publications 1997: 3 publications 1998: 3 publications 1999: 3 publications 2000: 5 publications 2001: 1 publication 2002: 0 publications 2003: 5 publications 2004: 8 publications 2005: 6 publications 2006: 7 publications 2007: 7 publications 2008: 3 publications 2009: 2 publications 2010: 4 publications 2011: 3 publications 2012: 1 publication 2013: 3 publications 2014: 0 publications 2015: 0 publications 2016: 2 publications
1989 2016

93 publications in total across all disciplines

View publications per year as a table
Ian A. Merwin: publications per year, 1989 to 2016
Year Publications
1989 1
1990 1
1991 2
1992 2
1993 2
1994 10
1995 6
1996 3
1997 3
1998 3
1999 3
2000 5
2001 1
2002 0
2003 5
2004 8
2005 6
2006 7
2007 7
2008 3
2009 2
2010 4
2011 3
2012 1
2013 3
2014 0
2015 0
2016 2
Total 93
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Ian A. Merwin 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 Ian A. Merwin 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, 91–95 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: 92 publications — 19th percentile

19% 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 92
96–100 226
101–105 227
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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Ian A. Merwin 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 Ian A. Merwin 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, 31 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: 31 D-Index — 7th percentile

7% 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 31
32 253
33 283
34 288
35 240
36 246
37 243
38 247
39 229
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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Best Publications

  • Orchard Groundcover Management Impacts on Apple Tree Growth and Yield, and Nutrient Availability and Uptake

    Ian A. Merwin;Warren C. Stiles

  • Orchard Groundcover Management Impacts on Soil Physical Properties

    Ian A. Merwin;Warren C. Stiles;Harold M. van Es

  • Orchard floor management practices that maintain vegetative or biomass groundcover stimulate soil microbial activity and alter soil microbial community composition

    Shengrui Yao;Ian A. Merwin;George W. Bird;George S. Abawi

  • Soil physical conditions in a New York orchard after eight years under different groundcover management systems

    Manuel T. Oliveira;Ian A. Merwin

  • Soil fumigation and compost amendment alter soil microbial community composition but do not improve tree growth or yield in an apple replant site

    Shengrui Yao;Ian A. Merwin;George S. Abawi;Janice E. Thies

  • Comparing Mulches, Herbicides, and Cultivation as Orchard Groundcover Management Systems

    I.A. Merwin;D.A. Rosenberger;C.A. Engle;D.L. Rist

  • Soil erosion, runoff and nutrient losses in an avocado (Persea americana Mill) hillside orchard under different groundcover management systems

    Amaya Atucha;Ian A. Merwin;Michael G. Brown;Francisco Gardiazabal

  • Microbial community development in the rhizosphere of apple trees at a replant disease site

    Angelika Rumberger;Ian A. Merwin;Janice E. Thies

  • Long-term orchard groundcover management systems affect soil microbial communities and apple replant disease severity

    Angelika St. Laurent;Ian A. Merwin;Janice E. Thies

  • Long-term Effects of Four Groundcover Management Systems in an Apple Orchard

    Amaya Atucha;Ian A. Merwin;Michael G. Brown

  • Rootstock genotype and orchard replant position rather than soil fumigation or compost amendment determine tree growth and rhizosphere bacterial community composition in an apple replant soil

    Angelika Rumberger;Shengrui Yao;Ian A. Merwin;Eric B. Nelson

  • Malus Germplasm Varies in Resistance or Tolerance to Apple Replant Disease in a Mixture of New York Orchard Soils

    Dorcas K. Isutsa;Ian A. Merwin

  • Rootstock Selection, Preplant Soil Treatments, and Tree Planting Positions as Factors in Managing Apple Replant Disease

    Michelle M. Leinfelder;Ian A. Merwin

  • Rootstock genotype succession influences apple replant disease and root-zone microbial community composition in an orchard soil

    Angelika St. Laurent;Ian A. Merwin;Gennaro Fazio;Janice E. Thies

  • Characterization and the Effect of Maturity at Harvest on the Phenolic and Carotenoid Content of Northeast USA Apricot (Prunus armeniaca) Varieties

    Oluranti E. Campbell;Ian A. Merwin;Olga I. Padilla-Zakour

  • Root growth phenology, root longevity, and rhizosphere respiration of field grown 'Mutsu' apple trees on 'Malling 9' rootstock.

    Georgios Psarras;Ian A. Merwin;Alan N. Lakso;John A. Ray

  • Groundcover Management Systems Influence Fungicide and Nitrate-N Concentrations in Leachate and Runoff from a New York Apple Orchard

    Ian A. Merwin;John A. Ray;Tammo S. Steenhuis;Jan Boll

  • Persistence, phytotoxicity, and management of arsenic, lead and mercury residues in old orchard soils of New York State

    Unknown

  • Orchard-floor management systems.

    Unknown

  • DIAGNOSIS, ETIOLOGY AND MANAGEMENT OF REPLANT DISORDERS IN NEW YORK CHERRY AND APPLE ORCHARDS

    Unknown

  • Chemical Repellents and Plastic Netting for Reducing Bird Damage to Sweet Cherries, Blueberries, and Grapes

    Paul D. Curtis;Ian A. Merwin;Marvin P. Pritts;David V. Peterson

  • Nitrogen Fertilization, Midsummer Trunk Girdling, and AVG Treatments Affect Maturity and Quality of 'Jonagold' Apples

    James M. Wargo;Ian A. Merwin;Christopher B. Watkins

  • Soil properties change during the transition to integrated and organic apple production in a New York orchard

    Gregory M. Peck;Ian A. Merwin;Janice E. Thies;Robert R. Schindelbeck

  • APPLE ROOT GROWTH, TURNOVER, AND DISTRIBUTION UNDER DIFFERENT ORCHARD GROUNDCOVER MANAGEMENT SYSTEMS

    Shengrui Yao;Ian A. Merwin;Michael G. Brown

Frequent Co-Authors

Janice E. Thies
Janice E. Thies Cornell University
Christopher B. Watkins
Christopher B. Watkins Cornell University
Duane W. Greene
Duane W. Greene University of Massachusetts Amherst
Dennis D. Miller
Dennis D. Miller Cornell University
Tammo S. Steenhuis
Tammo S. Steenhuis Cornell University
Gennaro Fazio
Gennaro Fazio Agricultural Research Service
Alan N. Lakso
Alan N. Lakso Cornell University
Jan Boll
Jan Boll Washington State University
Eric B. Nelson
Eric B. Nelson Cornell University
Johannes Lehmann
Johannes Lehmann Cornell University

External Links

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Best Scientists Citing Ian A. Merwin

Tammo S. Steenhuis

Tammo S. Steenhuis

Cornell University

Publications: 27

Mark Mazzola

Mark Mazzola

Stellenbosch University

Publications: 17

Traud Winkelmann

Traud Winkelmann

University of Hannover

Publications: 15

Artemi Cerdà

Artemi Cerdà

University of Valencia

Publications: 13

Brian K. Richards

Brian K. Richards

Cornell University

Publications: 10

Murugesu Sivapalan

Murugesu Sivapalan

University of Illinois at Urbana-Champaign

Publications: 9

Jesús Rodrigo-Comino

Jesús Rodrigo-Comino

University of Granada

Publications: 9

Gennaro Fazio

Gennaro Fazio

Agricultural Research Service

Publications: 9

Saskia Keesstra

Saskia Keesstra

Wageningen University & Research

Publications: 7

David M. Eissenstat

David M. Eissenstat

Pennsylvania State University

Publications: 7

Heribert Insam

Heribert Insam

University of Innsbruck

Publications: 6

Eric C. Brevik

Eric C. Brevik

Southern Illinois University Carbondale

Publications: 6

Agata Novara

Agata Novara

University of Palermo

Publications: 5

Patrick O. Brown

Patrick O. Brown

Stanford University

Publications: 5

John P. Reganold

John P. Reganold

Washington State University

Publications: 5

Alan N. Lakso

Alan N. Lakso

Cornell University

Publications: 5

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