World's Best Scientists 2026 revealed!
Paul L. G. Vlek

Paul L. G. Vlek

D-Index & Metrics

Plant Science and Agronomy

D-Index
71
Citations
14490
World Ranking
691
National Ranking
57

Paul L. G. Vlek 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 Paul L. G. Vlek 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: 256 publications — 88th percentile

88% of scientists in this discipline score the same or lower.

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

Paul L. G. Vlek 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 Paul L. G. Vlek 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: 71 D-Index — 90th percentile

90% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2008 - Fellow of the Soil Science Society of America (SSSA)
  • 2004 - Fellow of the American Society of Agronomy (ASA)

Overview

What is he best known for?

The fields of study he is best known for:

  • Agriculture
  • Ecology
  • Agronomy

The scientist’s investigation covers issues in Agronomy, Soil water, Agriculture, Ammonia volatilization from urea and Fertilizer. He interconnects Ecology, Nutrient, Shifting cultivation and Soil retrogression and degradation in the investigation of issues within Agronomy. His Soil water research focuses on Animal science and how it relates to Nitrate.

When carried out as part of a general Agriculture research project, his work on Cropping, Summer fallow and Sustainable agriculture is frequently linked to work in Food processing, therefore connecting diverse disciplines of study. His research investigates the connection between Cropping and topics such as Tillage that intersect with issues in Agroforestry. His Ammonia volatilization from urea research is multidisciplinary, incorporating elements of Environmental chemistry, Denitrification, Tropics and Paddy field.

His most cited work include:

  • An appraisal of global wetland area and its organic carbon stock (325 citations)
  • Farmers’ perception and adaptation to climate change: a case study of Sekyedumase district in Ghana (207 citations)
  • Effect of environmental factors on ammonia volatilization from a urea-fertilized soil (173 citations)

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

Paul L. G. Vlek spends much of his time researching Agronomy, Hydrology, Agroforestry, Agriculture and Fertilizer. The Agronomy study combines topics in areas such as Soil water, Soil fertility and Nutrient. The study incorporates disciplines such as Soil science and Soil retrogression and degradation in addition to Hydrology.

Paul L. G. Vlek focuses mostly in the field of Agroforestry, narrowing it down to matters related to Land degradation and, in some cases, Normalized Difference Vegetation Index and Environmental resource management. His Agriculture study combines topics in areas such as Climate change, Socioeconomics and Land use. Paul L. G. Vlek works in the field of Fertilizer, focusing on Ammonia volatilization from urea in particular.

He most often published in these fields:

  • Agronomy (35.66%)
  • Hydrology (18.03%)
  • Agroforestry (15.57%)

What were the highlights of his more recent work (between 2011-2020)?

  • Agronomy (35.66%)
  • Agroforestry (15.57%)
  • Land degradation (8.20%)

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

His primary scientific interests are in Agronomy, Agroforestry, Land degradation, Hydrology and Agriculture. His Agronomy research incorporates elements of Soil carbon and Soil fertility. He combines subjects such as Sustainable agriculture, Environmental resource management, Normalized Difference Vegetation Index and Land management with his study of Land degradation.

Paul L. G. Vlek has included themes like Soil science, Soil water and Soil test in his Hydrology study. As part of one scientific family, he deals mainly with the area of Soil water, narrowing it down to issues related to the Nutrient, and often Vegetation and Ecosystem. His Agriculture study incorporates themes from Climate change, Socioeconomics and Fertilizer.

Between 2011 and 2020, his most popular works were:

  • Farmers’ perception and adaptation to climate change: a case study of Sekyedumase district in Ghana (207 citations)
  • Socio-economic and biophysical determinants of land degradation in Vietnam: An integrated causal analysis at the national level (68 citations)
  • Soil aggregation and total diversity of bacteria and fungi in various tillage systems of sub-humid and semi-arid Kenya (51 citations)

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

  • Agriculture
  • Ecology
  • Ecosystem

His primary areas of study are Agronomy, Land degradation, Tillage, Agriculture and Conventional tillage. His Agronomy research includes themes of Crop residue and Conservation agriculture. The concepts of his Land degradation study are interwoven with issues in Soil fertility, Primary production, Hydrology, Land management and Normalized Difference Vegetation Index.

Paul L. G. Vlek is involved in the study of Hydrology that focuses on Groundwater in particular. His biological study spans a wide range of topics, including Productivity, Cultivar, Yield and Fertilizer. In his study, which falls under the umbrella issue of Irrigation, Nutrient and Salinity is strongly linked to Leaching.

Best Publications

  • Farmers’ perception and adaptation to climate change: a case study of Sekyedumase district in Ghana

    B.Y. Fosu-Mensah;Paul L.G. Vlek;Dilys S. MacCarthy

  • An appraisal of global wetland area and its organic carbon stock

    Sudip Mitra;Reiner Wassmann;Paul L. G. Vlek

  • Effect of environmental factors on ammonia volatilization from a urea-fertilized soil

    R. J. B. Bouwmeester;P. L. G. Vlek;J. M. Stumpe

  • Analysis of factors determining sediment yield variability in the highlands of northern Ethiopia

    L. Tamene;S.J. Park;R. Dikau;P.L.G. Vlek

  • Beneficial effects of blue-green algae and Azolla, excluding supplying nitrogen, on wetland rice fields: a review

    B. Mandal;P. L. G. Vlek;L. N. Mandal

  • Traits associated with improved P-uptake efficiency in CIMMYT's semidwarf spring bread wheat grown on an acid Andisol in Mexico.

    G.G.B. Manske;J.I. Ortiz-Monasterio;M. Van Ginkel;R.M. González

  • Effects of Solution Chemistry and Environmental Conditions on Ammonia Volatilization Losses From Aqueous Systems

    P.L.G. Vlek;J. M. Stumpe

  • 7. The efficacy and loss of fertilizer N in lowland rice

    Paul L G Vlek;Bernard H Byrnes

  • Catchment-scale spatial variability of soil properties and implications on site-specific soil management in northern Ethiopia

    Gebreyesus Brhane Tesfahunegn;Gebreyesus Brhane Tesfahunegn;Lulseged Tamene;Paul L.G. Vlek

  • Environmental correlation of three-dimensional soil spatial variability: a comparison of three adaptive techniques

    S.J Park;P.L.G Vlek

  • Importance of P uptake efficiency versus P utilization for wheat yield in acid and calcareous soils in Mexico

    G.G.B. Manske;J.I. Ortiz-Monasterio;M. van Ginkel;R.M. González

  • Fire-free alternatives to slash-and-burn for shifting cultivation in the eastern Amazon region: the role of fertilizers

    M.S.A Kato;O.R Kato;M Denich;P.L.G Vlek

  • Ammonia volatilization from flooded soils

    Paul Lg Vlek;Eric T Craswell

  • Groundwater table and salinity: Spatial and temporal distribution and influence on soil salinization in Khorezm region (Uzbekistan, Aral Sea Basin)

    M. Ibrakhimov;A. Khamzina;I. Forkutsa;G. Paluasheva

  • Soil microbiological parameters as indicators of soil quality under improved fallow management systems in south-western Nigeria

    Barbara Wick;Ronald F. Kühne;Paul L.G. Vlek

  • Socio-economic and biophysical determinants of land degradation in Vietnam: An integrated causal analysis at the national level

    Quyet Manh Vu;Quang Bao Le;Emmanuel Frossard;Paul L.G. Vlek

  • The role of fertilizers in sustaining agriculture in sub-Saharan Africa

    P. L. G. Vlek

  • Root Architecture—Wheat as a Model Plant

    Günther G. B. Manske;Paul L. G. Vlek

  • Comparison of adaptive techniques to predict crop yield response under varying soil and land management conditions

    S.J. Park;C.S. Hwang;P.L.G. Vlek

  • Carbon storage and root penetration in deep soils under small-farmer land-use systems in the Eastern Amazon region, Brazil.

    Rolf Sommer;Manfred Denich;Paul L.G. Vlek

  • Modeling irrigated cotton with shallow groundwater in the Aral Sea Basin of Uzbekistan: II. Soil salinity dynamics

    I. Forkutsa;Rolf Sommer;Rolf Sommer;Y. I. Shirokova;J. P. A. Lamers

Frequent Co-Authors

John P. A. Lamers
John P. A. Lamers University of Bonn
Christopher Martius
Christopher Martius Center for International Forestry Research, Germany
Manfred Denich
Manfred Denich University of Bonn
Nick van de Giesen
Nick van de Giesen Delft University of Technology
Jan M. H. Hendrickx
Jan M. H. Hendrickx New Mexico Institute of Mining and Technology
Stefan Dech
Stefan Dech German Aerospace Center
Mathias Becker
Mathias Becker University of Bonn
Reiner Wassmann
Reiner Wassmann International Atomic Energy Agency
Meine van Noordwijk
Meine van Noordwijk World Agroforestry Centre

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 Paul L. G. Vlek

Trending Scientists

Recently Published Articles