World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
31
Citations
3491
World Ranking
6224
National Ranking
1501

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.

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: 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.

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.

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.

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

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