World's Best Scientists 2026 revealed!

D-Index & Metrics

Plant Science and Agronomy

D-Index
58
Citations
15205
World Ranking
1319
National Ranking
344

James S. Schepers 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 James S. Schepers 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: 151 publications — 58th percentile

58% of scientists in this discipline score the same or lower.

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

James S. Schepers 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 James S. Schepers 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: 58 D-Index — 80th percentile

80% 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

  • 1994 - Fellow of the Soil Science Society of America (SSSA)
  • 1990 - Fellow of the American Society of Agronomy (ASA)

Overview

What is he best known for?

The fields of study he is best known for:

  • Agronomy
  • Fertilizer
  • Botany

James S. Schepers spends much of his time researching Agronomy, Fertilizer, Chlorophyll, Crop and Canopy. His Agronomy study combines topics in areas such as Nitrogen deficiency and Reflectivity. His studies deal with areas such as Fertigation and Yield as well as Crop.

His work carried out in the field of Yield brings together such families of science as Chlorophyll meter and Normalized Difference Vegetation Index. His Canopy research is multidisciplinary, relying on both Radiation and Shortwave radiation. His Growing season research integrates issues from Nutrient management and Agricultural engineering.

His most cited work include:

  • In‐Season Prediction of Potential Grain Yield in Winter Wheat Using Canopy Reflectance (367 citations)
  • Comparison of corn leaf nitrogen concentration and chlorophyll meter readings (346 citations)
  • Use of a Chlorophyll Meter to Monitor Nitrogen Status and Schedule Fertigation for Corn (313 citations)

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

James S. Schepers mainly focuses on Agronomy, Fertilizer, Canopy, Crop and Growing season. While the research belongs to areas of Agronomy, he spends his time largely on the problem of Chlorophyll, intersecting his research to questions surrounding Red edge. The Fertilizer study combines topics in areas such as Soil water, Agricultural engineering and Irrigation.

His Canopy research is multidisciplinary, incorporating perspectives in Normalized Difference Vegetation Index, Remote sensing, Reflectivity and Horticulture. He has included themes like Nitrate test, N application and Stalk in his Crop study. His research integrates issues of Leaching, Nitrogen deficiency and Groundwater in his study of Growing season.

He most often published in these fields:

  • Agronomy (67.35%)
  • Fertilizer (32.65%)
  • Canopy (20.41%)

What were the highlights of his more recent work (between 2015-2020)?

  • Agronomy (67.35%)
  • Crop (19.39%)
  • Fertilizer (32.65%)

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

Agronomy, Crop, Fertilizer, Optical reflectance and Red edge are his primary areas of study. His Agronomy research incorporates elements of Canopy and Leaching. The study incorporates disciplines such as N application, Yield and Reflectivity in addition to Crop.

James S. Schepers combines subjects such as Soil organic matter and Grain yield with his study of Yield. His Fertilizer research incorporates themes from DNS root zone, Variable Rate Application, Lint and High spatial resolution. He has researched Optical reflectance in several fields, including Zea mays, Remote sensing and Sowing.

Between 2015 and 2020, his most popular works were:

  • Algorithms for In-Season Nutrient Management in Cereals (44 citations)
  • Efficiency of chlorophyll in gross primary productivity: A proof of concept and application in crops. (19 citations)
  • Nitrogen uptake and N-use efficiency of Mediterranean cotton under varied deficit irrigation and N fertilization (18 citations)

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

  • Agronomy
  • Botany
  • Fertilizer

James S. Schepers mainly investigates Agronomy, Fertilizer, Canopy, Cereal grain and Randomized block design. His work blends Agronomy and Primary production studies together. His study in Fertilizer is interdisciplinary in nature, drawing from both Cropping system, Crop yield, Topsoil and Lint.

His research in Canopy intersects with topics in Photosynthesis, Chlorophyll, Vegetation and Phenology. The concepts of his Cereal grain study are interwoven with issues in Growing degree-day, N management, Crop, Nutrient management and Cropping. His Randomized block design research is multidisciplinary, incorporating elements of Precision agriculture, Winter wheat, Leaching, High spatial resolution and Water balance.

Best Publications

  • Remote Sensing for Crop Management

    Paul J. Pinter;Jerry L. Hatfield;James S. Schepers;Edward M. Barnes

  • Application of Spectral Remote Sensing for Agronomic Decisions

    J. L. Hatfield;Anatoly A. Gitelson;James S. Schepers;C. L. Walthall

  • In-Season Prediction of Potential Grain Yield in Winter Wheat Using Canopy Reflectance

    William R. Raun;John B. Solie;Gordon V. Johnson;Marvin L. Stone

  • Use of Remote-Sensing Imagery to Estimate Corn Grain Yield

    John F. Shanahan;James S. Schepers;Dennis D. Francis;Gary E. Varvel

  • Comparison of corn leaf nitrogen concentration and chlorophyll meter readings

    J. S. Schepers;D. D. Francis;M. Vigil;F. E. Below

  • Use of a Chlorophyll Meter to Monitor Nitrogen Status and Schedule Fertigation for Corn

    T.M. Blackmer;J.S. Schepers

  • Remote estimation of nitrogen and chlorophyll contents in maize at leaf and canopy levels

    Michael Schlemmer;Anatoly A. Gitelson;James S. Schepers;Richard B. Ferguson

  • Light Reflectance Compared with Other Nitrogen Stress Measurements in Corn Leaves

    Tracy M. Blackmer;James S. Schepers;Gary E. Varvel

  • Optical Sensor‐Based Algorithm for Crop Nitrogen Fertilization

    W. R. Raun;J. B. Solie;M. L. Stone;K. L. Martin

  • Remotely measuring chlorophyll content in corn leaves with differing nitrogen levels and relative water content

    Michael R. Schlemmer;Dennis D. Francis;J.F. Shanahan;James S. Schepers

  • Ability for In‐Season Correction of Nitrogen Deficiency in Corn Using Chlorophyll Meters

    Gary E. Varvel;James S. Schepers;Dennis D. Francis

  • Responsive in-season nitrogen management for cereals

    J. F. Shanahan;N. R. Kitchen;W. R. Raun;J. S. Schepers

  • Nitrogen Deficiency Detection Using Reflected Shortwave Radiation from Irrigated Corn Canopies

    Tracy M. Blackmer;James S. Schepers;Gary E. Varvel;Elizabeth A. Walter-Shea

  • Appropriateness of management zones for characterizing spatial variability of soil properties and irrigated corn yields across years

    Aaron R. Schepers;John F. Shanahan;Mark A. Liebig;James S. Schepers

  • Monitoring Maize (Zea mays L.) Phenology with Remote Sensing

    Andrés Viña;Anatoly A. Gitelson;Donald C. Rundquist;Galina P. Keydan

  • Relationships between gross primary production, green LAI, and canopy chlorophyll content in maize: Implications for remote sensing of primary production

    Anatoly A. Gitelson;Yi Peng;Yi Peng;Timothy J. Arkebauer;James Schepers

  • Active Sensor Reflectance Measurements of Corn Nitrogen Status and Yield Potential

    Fernando Solari;John Shanahan;Richard B. Ferguson;James S. Schepers

  • Transmittance and Reflectance Measurements of CornLeaves from Plants with Different Nitrogen and Water Supply

    James S. Schepers;T. M. Blackmer;Wallace Wilhelm;M. Resende

  • Detection of Phosphorus and Nitrogen Deficiencies in Corn Using Spectral Radiance Measurements

    S. L. Osborne;S. L. Osborne;J. S. Schepers;D. D. Francis;M. R. Schlemmer

  • Use of Spectral Radiance to Estimate In-Season Biomass and Grain Yield in Nitrogen- and Water-Stressed Corn.

    S.L. Osborne;James S. Schepers;D.D. Francis;Michael R. Schlemmer

  • Agronomic Responses of Corn Hybrids from Different Eras to Deficit and Adequate Levels of Water and Nitrogen

    Patrick M. O’Neill;John F. Shanahan;James S. Schepers;Bob Caldwell

  • Techniques for monitoring crop nitrogen status in corn

    T. M. Blackmer;J. S. Schepers

  • Non-Destructive Determination of Maize Leaf and Canopy Chlorophyll Content

    Veronica Ciganda;Anatoly A. Gitelson;James S. Schepers

  • Derivation of a Variable Rate Nitrogen Application Model for In-Season Fertilization of Corn

    K. H. Holland;J. S. Schepers

  • Post-Anthesis Nitrogen Loss from Corn

    D. D. Francis;J. S. Schepers;M. F. Vigil

  • An Algorithm for Corn Nitrogen Recommendations Using a Chlorophyll Meter Based Sufficiency Index

    Gary E. Varvel;Wally Wilhelm;J. F. Shanahan;James S. Schepers

Frequent Co-Authors

Richard B. Ferguson
Richard B. Ferguson University of Nebraska–Lincoln
Anatoly A. Gitelson
Anatoly A. Gitelson University of Nebraska–Lincoln
William R. Raun
William R. Raun Oklahoma State University
Newell R. Kitchen
Newell R. Kitchen Agricultural Research Service
Gary E. Varvel
Gary E. Varvel University of Nebraska–Lincoln
John B. Solie
John B. Solie Oklahoma State University
John W. Doran
John W. Doran University of Nebraska–Lincoln
John E. Sawyer
John E. Sawyer Iowa State University
Charles A. Shapiro
Charles A. Shapiro University of Nebraska–Lincoln
Kent M. Eskridge
Kent M. Eskridge University of Nebraska–Lincoln

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