Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
Regenerative Agriculture: An agronomic perspective
2021304 citationsJames Sumberg et al.Outlook on Agricultureprofile →
Author Peers
Peers are selected by citation overlap in the author's most active subfields.
citations ·
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This map shows the geographic impact of James Sumberg'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 James Sumberg with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites James Sumberg more than expected).
This network shows the impact of papers produced by James Sumberg. 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 James Sumberg. The network helps show where James Sumberg may publish in the future.
Co-authorship network of co-authors of James Sumberg
This figure shows the co-authorship network connecting the top 25 collaborators of James Sumberg.
A scholar is included among the top collaborators of James Sumberg based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with James Sumberg. James Sumberg is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Sabates‐Wheeler, Rachel & James Sumberg. (2020). Understanding Children’s Harmful Work in African Agriculture: Points of Departure. OpenDocs (Institute of Development Studies).2 indexed citations
5.
Sumberg, James, Jordan Chamberlin, Justin Flynn, Dominic Glover, & Victoria Johnson. (2019). Landscapes of rural youth opportunities: Paper for IFAD's 2019 Rural Development Report.3 indexed citations
Sumberg, James, et al.. (1987). Economic analysis of alley farming with small ruminants. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).10 indexed citations
14.
Atta-Krah, A. N., et al.. (1986). Leguminous fodder trees in the farming system. An overview of research at the Humid Zone Programme of ILCA in southwestern Nigeria. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).4 indexed citations
15.
Sumberg, James. (1986). Alley farming with Gliricidia sepium: Germplasm evaluation and planting density trial. Tropical Agriculture. 63(3). 170–172.4 indexed citations
16.
Sumberg, James. (1985). Note on estimating the foliage yield of two tropical browse species. Tropical Agriculture. 62(1). 15–16.2 indexed citations
17.
Sumberg, James. (1985). Note on flowering and seed production in a young Gliricidia sepium seed orchard. 62(1). 17–19.4 indexed citations
18.
Sumberg, James. (1984). Alley farming in the humid zone: Linking crop and livestock production. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).1 indexed citations
19.
Sumberg, James. (1984). Small ruminant feed production in a farming systems context. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).8 indexed citations
20.
Sumberg, James. (1983). Leuca-fence: Living fence for sheep using Leucaena leucocephala. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research).1 indexed citations
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.