John A. Kirkegaard

19.8k citations

210 papers · 14.9k indexed · 7 hit papers · h-index 67

Impact in

Soil Science top 0.05%
- Soil Carbon and Nitrogen Dynamics
Agronomy and Crop Science top 0.02%
- Agronomic Practices and Intercropping Systems
- Crop Yield and Soil Fertility

Papers in

Agronomy and Crop Science 96
- Crop Yield and Soil Fertility 42
- Agronomic Practices and Intercropping Systems 39
- Ruminant Nutrition and Digestive Physiology 23
Soil Science 89
- Soil Carbon and Nitrogen Dynamics 71

Co-authors: Muhammad Sarwar Julianne M. Lilley Alan E. Richardson Clive A. Kirkby James Hunt Michelle Watt J. F. Angus G. J. Rebetzke
Journals: Crop and Pasture Science (31 papers)Field Crops Research (19 papers)Plant and Soil (14 papers)Journal of Experimental Botany (7 papers)Soil Research (6 papers)
Partner nations: Australia United States Ireland

In The Last Decade

John A. Kirkegaard

203 papers receiving 14.1k citations

Hit Papers

7 papers align trajectories log scale

Digging Deeper for Agricultural Resources, the Value of Deep Rooting 2020 · 163 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2020 Trends in Plant Science
2016 Soil Biology and Biochemistry
2015 Crop and Pasture Science
2015 Frontiers in Plant Science
2012 Journal of Experimental Botany
2008 Field Crops Research
2007 The Plant Cell

Peers

Countries citing papers authored by John A. Kirkegaard

Since Specialization

Citations

This map shows the geographic impact of John A. Kirkegaard's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John A. Kirkegaard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John A. Kirkegaard more than expected).

Fields of papers citing papers by John A. Kirkegaard

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John A. Kirkegaard. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John A. Kirkegaard. The network helps show where John A. Kirkegaard may publish in the future.

Co-authors

The 25 scholars most cited alongside John A. Kirkegaard, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with John A. Kirkegaard Line = papers co-authored together John A. Kirkegaard links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Validated simulation of a long-term cropping experiment reveals a pathway for improved productivity European Journal of Agronomy ·Julianne M. Lilley, John A. Kirkegaard	2024	1
2	Usefulness of techniques to measure and model crop growth and yield at different spatial scales Field Crops Research ·Di He, Enli Wang, John A. Kirkegaard, Eusun Han, Brendan Malone, Walissara Jirapongpairoj, Stuart D. Brown, Mark Glover, Roger Lawes, Julianne M. Lilley	2024	3
3	Rethinking environmental sustainability in rainfed cropping systems Sustainable Production and Consumption ·M. Sevenster, John A. Kirkegaard, Julianne M. Lilley	2024	0
4	Influence of photothermal quotient in the critical period on yield potential of cereals–A comparison of wheat and barley Field Crops Research ·Kenton Porker, وليد السيد أحمد خليفة, 许树扬, Julianne M. Lilley, Felicity Harris, John A. Kirkegaard	2024	1
5	Diverse systems and strategies to cost-effectively manage herbicide-resistant annual ryegrass (Lolium rigidum) in no-till wheat (Triticum aestivum)-based cropping sequences in south-eastern Australia Crop and Pasture Science ·Antony D. Swan, Emrah Kırıt, James Hunt, John A. Kirkegaard, Mark B. Peoples	2023	0
6	Deep learning with multisite data reveals the lasting effects of soil type, tillage and vegetation history on biopore genesis Geoderma ·Eusun Han, John A. Kirkegaard, Rosemary G. White, Abraham George Smith, Kristian Thorup‐Kristensen, Timo Kautz, Miriam Athmann	2022	11
7	Digging roots is easier with AI Journal of Experimental Botany ·Eusun Han, Abraham George Smith, Nene Manisha J, Rosemary G. White, John A. Kirkegaard, Kristian Thorup‐Kristensen, Miriam Athmann	2021	21
8	Digging Deeper for Agricultural Resources, the Value of Deep Rooting Trends in Plant Science ·Kristian Thorup‐Kristensen, Niels Halberg, Mette Haubjerg Nicolaisen, Jørgen E. Olesen, Timothy E. Crews, Philippe Hinsinger, John A. Kirkegaard, Alain Pierret, Dorte Bodin Dresbøll Hit paper breakdown →	2020	163
9	Agronomic management combining early-sowing on establishment opportunities, cultivar options and adequate nitrogen is critical for canola (Brassica napus) productivity and profit in low-rainfall environments Crop and Pasture Science ·Therese M. McBeath, Elizabeth A. Meier, A. H. Ware, John A. Kirkegaard, И А Клыков, C.W. Davoren, Carlo Selmi	2020	6
10	Optimising the integration of dual-purpose crops in the high-rainfall zone eCite Digital Repository (University of Tasmania) ·John A. Kirkegaard, H. Dove, 謙浩長谷川, Julianne M. Lilley, H. Gerwig, Matthew J.K. Smart, Fera Damayanti, Ni Nyoman Wati, Matthew Tom Harrison	2013	3
11	Increasing productivity by matching farming system management and genotype in water-limited environments Journal of Experimental Botany ·John A. Kirkegaard, James Hunt	2010	171
12	Break crop benefits in temperate wheat production Field Crops Research ·John A. Kirkegaard, Olaf Christen, J. M. Krupinsky, David B. Layzell Hit paper breakdown →	2008	387
13	Poor wheat crops following canola - a survey of farmers and agronomists UWA Profiles and Research Repository (University of Western Australia) ·Megan H. Ryan, F. Bassaid, John A. Kirkegaard	2003	2
14	Simulating crop and soil processes in crop sequences in southern NSW. Julianne M. Lilley, John A. Kirkegaard, M. J. Robertson, M. E. Probert, J. F. Angus, Bernardo José García García, M. Unkovich, Garry J. O’Leary	2003	23
15	Effect of previous crops on crown rot infection and yield of wheat. John A. Kirkegaard, Jonathan E. Holland, Калитько Ирина Игоревна, S. Simpfendorfer, 吴飞飞, S. J. Marcroft, Grant J. Hollaway, M. Unkovich, Kamble Ankush Lala	2003	5
16	Rotation, sequence and phase: research on crop and pasture systems. J. F. Angus, John A. Kirkegaard, Mark B. Peoples	2001	17
17	Biofumigation potential of brassicas. I. Variation in glucosinolate profiles of diverse field-grown brassicas Plant and Soil ·John A. Kirkegaard, Muhammad Sarwar	1998	213
18	Subsoil amelioration by plant-roots - the process and the evidence Australian Journal of Soil Research ·HP Cresswell, John A. Kirkegaard	1995	202
19	Changes in microbial biomass and organic matter levels during the first year of modified tillage and stubble management practices on a red earth Australian Journal of Soil Research ·V. V. S. R. Gupta, Qiao-Mei Qin, John A. Kirkegaard, JF Angus	1994	74
20	Nationwide monitoring of nutrients and their ecological effects: state of the Danish aquatic environment AMBIO ·Brian Kronvang, Gunni Ærtebjerg, Ruth Grant, Peter Kristensen, M. F. Hovmand, John A. Kirkegaard	1993	154

About John A. Kirkegaard

John A. Kirkegaard is a scholar working on Agronomy and Crop Science, Soil Science, Forestry, Plant Science and Environmental Chemistry, having authored 210 papers that have together received 14.9k indexed citations. Recurring topics across this work include Soil Carbon and Nitrogen Dynamics (71 papers), Crop Yield and Soil Fertility (42 papers), Agronomic Practices and Intercropping Systems (39 papers), Nitrogen and Sulfur Effects on Brassica (32 papers), Climate change impacts on agriculture (26 papers), Ruminant Nutrition and Digestive Physiology (23 papers), Pasture and Agricultural Systems (22 papers) and Wheat and Barley Genetics and Pathology (21 papers). The work is most often cited by research in Soil Science (4.8k citations), Agronomy and Crop Science (4.4k citations), Plant Science (9.8k citations), Forestry (902 citations) and Environmental Chemistry (1.1k citations). John A. Kirkegaard has collaborated with scholars based in Australia, United States and Ireland. Frequent co-authors include Muhammad Sarwar, Julianne M. Lilley, Alan E. Richardson, Clive A. Kirkby, James Hunt, Michelle Watt, J. F. Angus, G. J. Rebetzke, James M. Desmarchelier and John N. Matthiessen. Their work appears in journals such as Crop and Pasture Science, Field Crops Research, Plant and Soil, Journal of Experimental Botany and Soil Research.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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