World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
50
Citations
6249
World Ranking
2204
National Ranking
564

Udo Blum 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 Udo Blum 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: 102 publications — 26th percentile

26% of scientists in this discipline score the same or lower.

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

Udo Blum 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 Udo Blum 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: 50 D-Index — 68th percentile

68% 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:

  • Botany
  • Ecology
  • Organic chemistry

Udo Blum spends much of his time researching Allelopathy, Botany, Soil water, Phenolic acid and Ferulic acid. His biological study spans a wide range of topics, including Environmental chemistry and Seedling. Food science is closely connected to Nutrient in his research, which is encompassed under the umbrella topic of Botany.

His work in the fields of Soil water, such as Root uptake, intersects with other areas such as Heuristic function, Experimental model and Field. Udo Blum integrates many fields in his works, including Phenolic acid, Bioassay, Vanillic acid, Phenols, Horticulture and Soil pH. Udo Blum focuses mostly in the field of Ferulic acid, narrowing it down to topics relating to Potassium and, in certain cases, Cucumis and Cucurbitaceae.

His most cited work include:

  • Evidence for Inhibitory Allelopathic Interactions Involving Phenolic Acids in Field Soils: Concepts vs. an Experimental Model (236 citations)
  • Microbial populations and phenolic acids in soil (181 citations)
  • Allelopathic Interactions Involving Phenolic Acids (167 citations)

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

Udo Blum mainly focuses on Allelopathy, Botany, Ferulic acid, Phenolic acid and Agronomy. The study incorporates disciplines such as Soil water, Crimson clover, Rhizosphere and Seedling in addition to Allelopathy. His Soil water research incorporates elements of Environmental chemistry and Chromatography.

His Botany study deals with Nutrient intersecting with Biomass. His study focuses on the intersection of Ferulic acid and fields such as Cucurbitaceae with connections in the field of Organic matter. His Agronomy study integrates concerns from other disciplines, such as Ozone and Water content.

He most often published in these fields:

  • Allelopathy (42.86%)
  • Botany (38.10%)
  • Ferulic acid (36.90%)

What were the highlights of his more recent work (between 2013-2019)?

  • Allelopathy (42.86%)
  • Simple (4.76%)
  • Cucumis (10.71%)

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

His scientific interests lie mostly in Allelopathy, Simple, Cucumis, Environmental chemistry and Seedling. His study with Allelopathy involves better knowledge in Botany. His work often combines Botany and Subject matter studies.

Udo Blum conducted interdisciplinary study in his works that combined Cucumis and Phenolic acid. The concepts of his Environmental chemistry study are interwoven with issues in Column and Soil water, Soil horizon. His Seedling research includes elements of Microorganism, Soil type and Ferulic acid.

Between 2013 and 2019, his most popular works were:

  • Plant-Plant Allelopathic Interactions (14 citations)
  • Reflections Regarding Plant-Plant Interactions, Communications and Allelopathic Interactions with an Emphasis on Allelopathic Interactions (2 citations)
  • Plant-Plant Allelopathic Interactions III: Partitioning and Seedling Effects of Phenolic Acids as Related to their Physicochemical and Conditional Properties (2 citations)

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

  • Botany
  • Ecology
  • Organic chemistry

His primary scientific interests are in Allelopathy, Botany, Seedling, Mathematics and Subject matter. Direct transfer, Biochemical engineering, Terminology and Computer science are fields of study that overlap with his Allelopathy research.

Best Publications

  • Evidence for Inhibitory Allelopathic Interactions Involving Phenolic Acids in Field Soils: Concepts vs. an Experimental Model

    Udo Blum;Steven R. Shafer;Mary E. Lehman

  • Effects of microbial utilization of phenolic acids and their phenolic acid breakdown products on allelopathic interactions

    Udo Blum

  • Allelopathic Interactions Involving Phenolic Acids

    U. Blum

  • Microbial populations and phenolic acids in soil

    Udo Blum;Steven R. Shafer

  • Allelopathic potential of legume debris and aqueous extracts

    Randall H. White;A. Douglas Worsham;Udo Blum

  • Phenolic acid content of soils from wheat-no till, wheat-conventional till, and fallow-conventional till soybean cropping systems

    U. Blum;T. R. Wentworth;K. Klein;A. D. Worsham

  • STRESS MODIFICATION OF ALLELOPATHY OF HELIANTHUS ANNUUS L. DEBRIS ON SEED GERMINATION

    Anthony B. Hall;Udo Blum;Roger C. Fites

  • Short-term Effects of Ferulic Acid on Ion Uptake and Water Relations in Cucumber Seedlings

    Fitzgerald L. Booker;Udo Blum;Edwin L. Fiscus

  • Induction and/or selection of phenolic acid-utilizing bulk-soil and rhizosphere bacteria and their influence on phenolic acid phytotoxicity.

    Udo Blum;Karen L. Staman;Laura J. Flint;Steven R. Shafer

  • Effects of ferulic acid, an allelopathic compound, on net P,K, and water uptake by cucumber seedlings in a split-root system

    Seung Won Lyu;Udo Blum

  • Effects of exogenously applied ferulic acid, a potential allelopathic compound, on leaf growth, water utilization, and endogenous abscisic acid levels of tomato, cucumber, and bean

    Lynn D. Holappa;Udo Blum

  • Relationships between Phenolic Acid Concentrations, Transpiration, Water Utilization, Leaf Area Expansion, and Uptake of Phenolic Acids: Nutrient Culture Studies

    Udo Blum;Thomas M. Gerig

  • Modification of allelopathic effects ofp-coumaric acid on morning-glory seedling biomass by glucose, methionine, and nitrate.

    Udo Blum;T. M. Gerig;A. D. Worsham;L. D. King

  • A study of the potential ways in which ozone could reduce root growth and nodulation of soybean

    Udo Blum;David T. Tingey

  • Allelopathic substances in ecosystems : Effectiveness of sterile soil components in altering recovery of ferulic acid.

    Barry R. Dalton;Udo Blum;Sterling B. Weed

  • Effects of various mixtures of ferulic acid and some of its microbial metabolic products on cucumber leaf expansion and dry matter in nutrient culture.

    Udo Blum;Barry R. Dalton;Jodi R. Shann

  • Effects of clover and small grain cover crops and tillage techniques on seedling emergence of some dicotyledonous weed species

    Udo Blum;Larry D. King;Tom M. Gerig;Mary E. Lehman

  • Inhibition of Symbiotic Nitrogen-Fixation by Gallic and Tannic Acid, and Possible Roles in Old-Field Succession

    Udo Blum;Elroy L. Rice

  • Plant-Plant Allelopathic Interactions

    Udo Blum

  • Effects of mixtures of four phenolic acids on leaf area expansion of cucumber seedlings grown in Portsmouth B1 soil materials.

    Thomas M. Gerig;Udo Blum

Frequent Co-Authors

Allen S. Heagle
Allen S. Heagle North Carolina State University
David T. Tingey
David T. Tingey Environmental Protection Agency
Fitzgerald L. Booker
Fitzgerald L. Booker North Carolina State University
Joseph C. Burns
Joseph C. Burns North Carolina State University
Edwin L. Fiscus
Edwin L. Fiscus North Carolina State University
Frank J. Louws
Frank J. Louws North Carolina State University

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 Udo Blum

Trending Scientists

Recently Published Articles