J. F. Karn

574 total citations
36 papers, 438 citations indexed

About

J. F. Karn is a scholar working on Agronomy and Crop Science, Environmental Chemistry and Ecology. According to data from OpenAlex, J. F. Karn has authored 36 papers receiving a total of 438 indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Agronomy and Crop Science, 19 papers in Environmental Chemistry and 11 papers in Ecology. Recurrent topics in J. F. Karn's work include Ruminant Nutrition and Digestive Physiology (19 papers), Turfgrass Adaptation and Management (17 papers) and Rangeland and Wildlife Management (11 papers). J. F. Karn is often cited by papers focused on Ruminant Nutrition and Digestive Physiology (19 papers), Turfgrass Adaptation and Management (17 papers) and Rangeland and Wildlife Management (11 papers). J. F. Karn collaborates with scholars based in United States and Canada. J. F. Karn's co-authors include A. B. Frank, D. L. Tanaka, J. D. Berdahl, John Hendrickson, Mark A. Liebig, E. J. Scholljegerdes, Scott L. Kronberg, Brian J. Wienhold, L. Hofmann and R. E. Ries and has published in prestigious journals such as Journal of Animal Science, Crop Science and Agronomy Journal.

In The Last Decade

J. F. Karn

34 papers receiving 393 citations

Peers

Countries citing papers authored by J. F. Karn

Since Specialization

Citations

This map shows the geographic impact of J. F. Karn'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 J. F. Karn with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. F. Karn more than expected).

Fields of papers citing papers by J. F. Karn

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J. F. Karn. 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 J. F. Karn. The network helps show where J. F. Karn may publish in the future.

Co-authorship network of co-authors of J. F. Karn

This figure shows the co-authorship network connecting the top 25 collaborators of J. F. Karn. A scholar is included among the top collaborators of J. F. Karn 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 J. F. Karn. J. F. Karn is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Integrated crop/livestock systems research: Practical research considerations 2008 ·Renewable Agriculture and Food Systems ·D. L. Tanaka, J. F. Karn, E. J. Scholljegerdes	36
2	Nutritive Quality of Four Perennial Grasses as Affected by Species, Cultivar, Maturity, and Plant Tissue 2006 ·Agronomy Journal ·J. F. Karn, J. D. Berdahl, A. B. Frank	35
3	Shrub Effects on Carbon Dioxide and Water Vapor Fluxes Over Grasslands 2005 ·Rangeland Ecology & Management ·A. B. Frank, J. F. Karn	9
4	An integrated approach to crop/livestock systems: Forage and grain production for swath grazing 2005 ·Renewable Agriculture and Food Systems ·D. L. Tanaka, J. F. Karn, Mark A. Liebig, Scott L. Kronberg, Jon D. Hanson	34
5	Russian wildrye nutritive quality as affected by accession and environment 2005 ·Canadian Journal of Plant Science ·J. F. Karn, H. F. Mayland, J. D. Berdahl, K. H. Asay, P. G. Jefferson	2
6	Ploidy, water, and nitrogen effects on Russian wildrye chemical composition 2004 ·Rangeland Ecology & Management ·J. F. Karn, A. B. Frank, J. D. Berdahl, Woodrow W. Poland	2
7	Water, Nitrogen and Ploidy Effects on Russian Wildrye Mineral Concentrations 2003 ·Journal of Range Management ·J. F. Karn, A. B. Frank, J. D. Berdahl, Woodrow W. Poland	1
8	Free-Choice Grazing of Native Range and Cool-Season Grasses 2002 ·Journal of Range Management ·J. F. Karn, R. E. Ries	5
9	Registration of ND‐WWG931 and ND‐WWG932 Western Wheatgrass Germplasms 1995 ·Crop Science ·Randolph Barker, I. M. Ray, J. D. Berdahl, J. F. Karn, (unknown), (unknown)	1
10	Comparison of Seeded and Native Pastures Grazed from Mid-May through September 1993 ·Journal of Range Management ·L. Hofmann, R. E. Ries, J. F. Karn, A. B. Frank	18
11	Registration of ‘Reliant’ Intermediate Wheatgrass 1992 ·Crop Science ·J. D. Berdahl, Randolph Barker, J. F. Karn, J. M. Krupinsky, (unknown), (unknown), I. M. Ray	8
12	Forage Quality Analysis Using Near Infared Reflectance Spectroscopy (NIRS) Technology in North Dakota 1991 ·NDSU Repository (North Dakota State University) ·J. F. Karn, J. D. Berdahl, (unknown)	2
13	Comparison of the Copper and Molybdenum Status of Yearling Steers Grazing Reclaimed Mined-Land and Native Range 1990 ·Journal of Range Management ·J. F. Karn, L. Hofmann	4
14	Relationships between Pasture Forage Components and Fecal Chemical Composition 1990 ·Journal of Range Management ·J. F. Karn, L. Hofmann	6
15	Nutritive Quality of Foliar Disease Resistant and Susceptible Strains of Intermediate Wheatgrass 1989 ·Crop Science ·J. F. Karn, J. M. Krupinsky, (unknown)	2
16	Microwave-Oven Drying of Forage Samples Collected via Esophageal Fistula 1986 ·Journal of Animal Science ·J. F. Karn	7
17	NUTRITIONAL, MORPHOLOGICAL AND AGRONOMIC CHARACTERISTICS OF SELECTED INTERMEDIATE WHEATGRASS CLONES 1984 ·Canadian Journal of Plant Science ·J. F. Karn, J. D. Berdahl	3
18	Supplementation of Yearling Steers Grazing Fertilized and Unfertilized Northern Plains Rangeland 1983 ·Journal of Range Management ·J. F. Karn, Russell J. Lorenz	1
19	Chemical Composition of Intermediate Wheatgrass Affected by Foliar Diseases and Stem Smut 1983 ·Phytopathology ·J. F. Karn	4
20	Intake, Digestibility and Nitrogen Utilization of Steers Consuming Irrigated Pasture as Influenced by Limited Energy Supplementation 1974 ·Journal of Animal Science ·(unknown), D. C. Clanton, J. F. Karn	12

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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