World's Best Scientists 2026 revealed!
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Plant Science and Agronomy
USA
2026

D-Index & Metrics

Plant Science and Agronomy

D-Index
98
Citations
35010
World Ranking
179
National Ranking
63

Research.com Recognitions

  • 2026 - Research.com Plant Science and Agronomy in United States Leader Award
  • 2014 - Fellow of the Crop Science Society of America (CSSA)
  • 2008 - Fellow of the American Association for the Advancement of Science (AAAS)
  • 2004 - Fellow of the Soil Science Society of America (SSSA)
  • 2002 - 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

Jagdish K. Ladha mostly deals with Agronomy, Oryza sativa, Crop, Nitrogen fixation and Cropping system. His Agronomy study frequently draws connections to adjacent fields such as Soil fertility. His work carried out in the field of Oryza sativa brings together such families of science as Field experiment, Inoculation, Poaceae, Botany and Rhizobium leguminosarum.

The concepts of his Crop study are interwoven with issues in Yield, Cultivar and Crop yield. His research integrates issues of Agriculture, Sustainable agriculture, Agricultural engineering and Rhizobacteria in his study of Nitrogen fixation. Jagdish K. Ladha has researched Straw in several fields, including Soil organic matter and Soil water.

His most cited work include:

  • Efficiency of Fertilizer Nitrogen in Cereal Production: Retrospects and Prospects (648 citations)
  • Biological nitrogen fixation: An efficient source of nitrogen for sustainable agricultural production? (626 citations)
  • Weed Management in Direct‐Seeded Rice (451 citations)

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

Jagdish K. Ladha spends much of his time researching Agronomy, Oryza sativa, Nitrogen fixation, Fertilizer and Botany. His Agronomy research includes elements of Nutrient and Soil fertility. His Oryza sativa research integrates issues from Inoculation, Shoot, Rhizobium leguminosarum, Poaceae and Straw.

In his research on the topic of Nitrogen fixation, Sustainability and Productivity is strongly related with Agriculture. While the research belongs to areas of Fertilizer, Jagdish K. Ladha spends his time largely on the problem of Crop residue, intersecting his research to questions surrounding Crop rotation. Jagdish K. Ladha interconnects Colonization, Rhizobia, Rhizobium, Diazotroph and Root hair in the investigation of issues within Botany.

He most often published in these fields:

  • Agronomy (66.39%)
  • Oryza sativa (22.54%)
  • Nitrogen fixation (22.54%)

What were the highlights of his more recent work (between 2009-2021)?

  • Agronomy (66.39%)
  • Agriculture (12.70%)
  • Tillage (9.43%)

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

His scientific interests lie mostly in Agronomy, Agriculture, Tillage, Agroforestry and Productivity. His work carried out in the field of Agronomy brings together such families of science as No-till farming and Crop residue. His Agriculture study combines topics in areas such as Natural resource economics, Climate change, Sustainability and Field.

His Tillage research includes elements of Water use, Cropping system, Crop rotation and Conservation agriculture. The concepts of his Agroforestry study are interwoven with issues in Agricultural productivity, Food security and Weed. His Productivity research integrates issues from Resource, Weed control and Agricultural science.

Between 2009 and 2021, his most popular works were:

  • Direct Seeding of Rice: Recent Developments and Future Research Needs (331 citations)
  • Global nitrogen budgets in cereals: A 50-year assessment for maize, rice, and wheat production systems. (165 citations)
  • Effect of Tillage and Crop Establishment Methods on Physical Properties of a Medium-Textured Soil under a Seven-Year Rice−Wheat Rotation (160 citations)

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

  • Agriculture
  • Ecology
  • Bacteria

The scientist’s investigation covers issues in Agronomy, Tillage, Crop, Crop residue and Crop yield. Jagdish K. Ladha studies Manure, a branch of Agronomy. Fertilizer is closely connected to Land degradation in his research, which is encompassed under the umbrella topic of Manure.

His Tillage research is multidisciplinary, relying on both Transplanting, Cropping system, Crop rotation and Conservation agriculture. His work in Transplanting tackles topics such as Weed control which are related to areas like Cultivar and Nutrient. In his study, Oryza sativa and Agroforestry is inextricably linked to Water use, which falls within the broad field of Cropping system.

Best Publications

  • Efficiency of Fertilizer Nitrogen in Cereal Production: Retrospects and Prospects

    Jagdish K. Ladha;Himanshu Pathak;Timothy J. Krupnik;J. Six

  • Biological nitrogen fixation: An efficient source of nitrogen for sustainable agricultural production?

    M. B. Peoples;D. F. Herridge;J. K. Ladha

  • Weed Management in Direct‐Seeded Rice

    A.N. Rao;D.E. Johnson;B. Sivaprasad;J.K. Ladha

  • Direct Seeding of Rice: Recent Developments and Future Research Needs

    Virender Kumar;Jagdish K. Ladha

  • Opportunities for increased nitrogen-use efficiency from improved resource management in irrigated rice systems

    Kenneth Cassman;S. Peng;D.C. Olk;J.K. Ladha

  • How extensive are yield declines in long-term rice-wheat experiments in Asia?

    J.K Ladha;D Dawe;H Pathak;A.T Padre

  • Rhizobia inoculation improves nutrient uptake and growth of lowland rice.

    J.C. Biswas;J.K. Ladha;F.B. Dazzo

  • Evaluation of plant growth promoting and colonization ability of endophytic diazotrophs from deep water rice

    Subhash C Verma;Jagdish K Ladha;Anil K Tripathi

  • Global nitrogen budgets in cereals: A 50-year assessment for maize, rice, and wheat production systems.

    J. K. Ladha;A. Tirol-Padre;C. K. Reddy;Kenneth Cassman

  • Natural endophytic association between Rhizobium leguminosarum bv. trifolii and rice roots and assessment of its potential to promote rice growth

    Youssef G. Yanni;R. Y. Rizk;V. Corich;A. Squartini

  • Infection and Colonization of Rice Seedlings by the Plant Growth-Promoting Bacterium Herbaspirillum seropedicae Z67

    Euan K. James;Prasad Gyaneshwar;Natarajan Mathan;Wilfredo L. Barraquio

  • Endophytic Colonization of Rice by a Diazotrophic Strain of Serratia marcescens

    Prasad Gyaneshwar;Euan K. James;Natarajan Mathan;Pallavolu M. Reddy

  • Saving of Water and Labor in a Rice–Wheat System with No-Tillage and Direct Seeding Technologies

    Lav Bhushan;Jagdish K. Ladha;Raj K. Gupta;S. Singh

  • Biological nitrogen fixation for sustainable agriculture: A perspective

    B. B. Bohlool;J. K. Ladha;D. P. Garrity;T. George

  • Evaluation of precision land leveling and double zero-till systems in the rice–wheat rotation: Water use, productivity, profitability and soil physical properties

    M.L. Jat;M.K. Gathala;J.K. Ladha;Y.S. Saharawat

  • Chlorophyll Meter– and Leaf Color Chart–Based Nitrogen Management for Rice and Wheat in Northwestern India

    Bijay Singh;Yadvinder Singh;Jagdish K. Ladha;Kevin F. Bronson;Kevin F. Bronson

  • Rhizobial Inoculation Influences Seedling Vigor and Yield of Rice

    Jatish C. Biswas;Jagdish K. Ladha;Frank B. Dazzo;Youssef G. Yanni

  • Effect of Tillage and Crop Establishment Methods on Physical Properties of a Medium-Textured Soil under a Seven-Year Rice−Wheat Rotation

    Mahesh K. Gathala;J. K. Ladha;Yashpal S. Saharawat;Virender Kumar

  • Long-term effects of organic inputs on yield and soil fertility in the rice-wheat rotation

    Yadvinder-Singh;Bijay-Singh;J. K. Ladha;C. S. Khind

  • Evaluation of alternative tillage and crop establishment methods in a rice-wheat rotation in North Western IGP

    Y.S. Saharawat;Bhagat Singh;R.K. Malik;Jagdish K. Ladha

  • Trends of climatic potential and on-farm yields of rice and wheat in the Indo-Gangetic Plains

    H Pathak;J.K Ladha;P.K Aggarwal;S Peng

Frequent Co-Authors

Mahesh K. Gathala
Mahesh K. Gathala International Maize and Wheat Improvement Center
Himanshu Pathak
Himanshu Pathak Indian Council of Agricultural Research
Agnes Tirol-Padre
Agnes Tirol-Padre International Rice Research Institute
Virender Kumar
Virender Kumar International Rice Research Institute
Mathias Becker
Mathias Becker University of Bonn
Y.S. Saharawat
Y.S. Saharawat International Center for Agricultural Research in the Dry Areas, Syria
Frank B. Dazzo
Frank B. Dazzo Michigan State University
Mangi Lal Jat
Mangi Lal Jat International Maize and Wheat Improvement Center
Mark B. Peoples
Mark B. Peoples Commonwealth Scientific and Industrial Research Organisation
Roland J. Buresh
Roland J. Buresh International Rice Research Institute

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