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

D-Index & Metrics

Plant Science and Agronomy

D-Index
78
Citations
28449
World Ranking
456
National Ranking
9

Research.com Recognitions

  • 2026 - Research.com Plant Science and Agronomy in Canada Leader Award
  • 2025 - Research.com Plant Science and Agronomy in Canada Leader Award
  • 2007 - Fellow of the Soil Science Society of America (SSSA)

Overview

What is he best known for?

The fields of study he is best known for:

  • Agriculture
  • Ecology
  • Agronomy

His primary areas of investigation include Agronomy, Soil water, Greenhouse gas, Agriculture and Organic matter. His work in Agronomy addresses subjects such as Agroecosystem, which are connected to disciplines such as Environmental protection. His studies in Soil water integrate themes in fields like Cropping system and Manure.

His Greenhouse gas research includes elements of Climate change, Grazing and Land use, land-use change and forestry. His study in Organic matter is interdisciplinary in nature, drawing from both Soil organic matter, Nutrient, Nitrogen cycle and Mineralization. His Soil organic matter study incorporates themes from Carbon sequestration and Ecosystem.

His most cited work include:

  • Greenhouse gas mitigation in agriculture (1545 citations)
  • Land Use, Land-Use Change, and Forestry (1300 citations)
  • Agricultural soils as a sink to mitigate CO2 emissions (649 citations)

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

H. Henry Janzen mainly investigates Agronomy, Soil water, Soil carbon, Greenhouse gas and Fertilizer. His work deals with themes such as Soil organic matter and Nitrogen, which intersect with Agronomy. His Soil water research is multidisciplinary, incorporating perspectives in Community structure and Water content.

The Soil carbon study which covers Agroecosystem that intersects with Perennial plant. His biological study spans a wide range of topics, including Agroforestry, Agriculture, Climate change, Carbon sequestration and Agricultural engineering. In his research on the topic of Agriculture, Environmental resource management is strongly related with Sustainability.

He most often published in these fields:

  • Agronomy (59.22%)
  • Soil water (23.46%)
  • Soil carbon (22.35%)

What were the highlights of his more recent work (between 2013-2021)?

  • Agronomy (59.22%)
  • Soil carbon (22.35%)
  • Soil water (23.46%)

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

H. Henry Janzen spends much of his time researching Agronomy, Soil carbon, Soil water, Greenhouse gas and Soil organic matter. His Agronomy research incorporates elements of Soil quality and Nitrogen. He has included themes like Crop residue, Crop yield and Chernozem in his Soil carbon study.

The study incorporates disciplines such as Community structure and Water content in addition to Soil water. His research integrates issues of Agroforestry, Beef cattle, Carbon sequestration, Agricultural engineering and Grazing in his study of Greenhouse gas. His Soil organic matter study integrates concerns from other disciplines, such as Environmental chemistry, Organic matter, Litter and Plant litter.

Between 2013 and 2021, his most popular works were:

  • Root distribution by depth for temperate agricultural crops (158 citations)
  • Beyond carbon sequestration: soil as conduit of solar energy (39 citations)
  • Long-term microbial retention of residue C is site-specific and depends on residue placement (36 citations)

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

  • Agriculture
  • Ecology
  • Ecosystem

H. Henry Janzen mostly deals with Agronomy, Soil carbon, Greenhouse gas, Manure and Soil water. His Agronomy research integrates issues from Agroecosystem, Crop residue and Temperate climate. His Soil carbon study combines topics in areas such as Environmental chemistry, Agricultural engineering, Soil organic matter and Carbon sequestration.

The various areas that he examines in his Greenhouse gas study include Agroforestry, Beef cattle, Ecosystem, Tillage and Grazing. His Manure study combines topics from a wide range of disciplines, such as Fertilizer and Soil quality. He combines subjects such as Organic matter and Community structure with his study of Soil water.

Best Publications

  • Greenhouse gas mitigation in agriculture

    Pete Smith;Daniel Martino;Zucong Cai;Daniel Gwary

  • Land Use, Land-Use Change, and Forestry

    I R Noble;Michael J Apps;Richard A Houghton;Daniel Lashof

  • Agricultural soils as a sink to mitigate CO2 emissions

    K Paustian;O Andren;H.H Janzen;R Lal

  • Light-fraction organic matter in soils from long-term crop rotations

    H. H. Janzen;C. A. Campbell;S. A. Brandt;G. P. Lafond

  • Carbon cycling in earth systems—a soil science perspective

    H.H. Janzen

  • Microbially Mediated Increases in Plant-Available Phosphorus

    R.M.N. Kucey;H.H. Janzen;M.E. Leggett

  • Policy and technological constraints to implementation of greenhouse gas mitigation options in agriculture

    Pete Smith;Daniel Martino;Zucong Cai;Daniel Gwary

  • An approach for estimating net primary productivity and annual carbon inputs to soil for common agricultural crops in Canada

    M.A. Bolinder;H.H. Janzen;E.G. Gregorich;D.A. Angers

  • Soil carbon dynamics and potential carbon sequestration by rangelands

    G.E Schuman;H.H Janzen;J.E Herrick

  • Carbon sequestration in soils

    James P. Bruce;Michele Frome;Eric Haites;Henry Janzen

  • The soil carbon dilemma: Shall we hoard it or use it?

    H.H. Janzen

  • Long-Term Agroecosystem Experiments: Assessing Agricultural Sustainability and Global Change

    Paul E. Rasmussen;Keith W. T. Goulding;James R. Brown;Peter R. Grace

  • Management effects on soil C storage on the Canadian prairies

    H.H Janzen;C.A Campbell;R.C Izaurralde;B.H Ellert

  • Root distribution by depth for temperate agricultural crops

    Jianling Fan;Brian McConkey;Hong Wang;Henry Janzen

  • Life cycle assessment of greenhouse gas emissions from beef production in western Canada: A case study

    Karen A. Beauchemin;H. Henry Janzen;Shannan M. Little;Tim A. McAllister

  • Labile soil organic matter as influenced by cropping practices in an arid environment.

    V.O. Biederbeck;H.H. Janzen;C.A. Campbell;R.P. Zentner

  • Differential response of weed species to added nitrogen

    Robert E. Blackshaw;Randall N. Brandt;H. Henry Janzen;Toby Entz

  • Towards a revised coefficient for estimating N₂O emissions from legumes.

    Philippe Rochette;Henry H. Janzen

  • Sensitivity of total, light fraction and mineralizable organic matter to management practices in a Lethbridge soil

    E. Bremer;H. H. Janzen;A. M. Johnston

  • Storage of Soil Carbon in the Light Fraction and Macroorganic Matter

    E.G. Gregorich;H.H. Janzen

  • The fate of nitrogen in agroecosystems: An illustration using Canadian estimates

    H.H. Janzen;K.A. Beauchemin;Y. Bruinsma;C.A. Campbell

  • Assessment of a Method to Measure Temporal Change in Soil Carbon Storage

    B. H. Ellert;H. H. Janzen;T. Entz

  • Nitrogen fertilizer timing and application method affect weed growth and competition with spring wheat

    Robert E. Blackshaw;Louis J. Molnar;H. Henry Janzen

  • Crop rotation studies on the Canadian prairies.

    C. A. Campbell;R. P. Zenter;H. H. Janzen;K. E. Bowren

Frequent Co-Authors

Edward G. Gregorich
Edward G. Gregorich Agriculture and Agriculture-Food Canada
Francis J. Larney
Francis J. Larney Agriculture and Agriculture-Food Canada
Karen A. Beauchemin
Karen A. Beauchemin Agriculture and Agriculture-Food Canada
C. A. Campbell
C. A. Campbell Agriculture and Agriculture-Food Canada
Tim A. McAllister
Tim A. McAllister Agriculture and Agriculture-Food Canada
Sean M. McGinn
Sean M. McGinn Agriculture and Agriculture-Food Canada
Peter Smith
Peter Smith University of Aberdeen
Brian McConkey
Brian McConkey Viresco Solutions Inc.
Reynald Lemke
Reynald Lemke Agriculture and Agriculture-Food Canada
Rattan Lal
Rattan Lal The Ohio State University

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