Scimago Journal & Country Rank

Journal of Nematologyopen access

Country United States  - SIR icon SIR Ranking of United States
H Index
Subject Area and CategoryAgricultural and Biological Sciences
Agronomy and Crop Science
Publisher Society of Nematologists
Publication typeJournals
Coverage1981, 1987-1989, 1993-2020
Scope Journal of Nematology is the official technical and scientific communication publication of the Society of Nematologists since 1969. The journal publishes original papers on all aspects of basic, applied, descriptive, theoretical or experimental nematology and adheres to strict peer-review policy. Other categories of papers include invited reviews, research notes, abstracts of papers presented at annual meetings, and special publications as appropriate.


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The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Agronomy and Crop Science1999Q2
Agronomy and Crop Science2000Q2
Agronomy and Crop Science2001Q2
Agronomy and Crop Science2002Q2
Agronomy and Crop Science2003Q2
Agronomy and Crop Science2004Q1
Agronomy and Crop Science2005Q2
Agronomy and Crop Science2006Q2
Agronomy and Crop Science2007Q2
Agronomy and Crop Science2008Q1
Agronomy and Crop Science2009Q2
Agronomy and Crop Science2010Q2
Agronomy and Crop Science2011Q2
Agronomy and Crop Science2012Q3
Agronomy and Crop Science2013Q2
Agronomy and Crop Science2014Q2
Agronomy and Crop Science2015Q2
Agronomy and Crop Science2016Q2
Agronomy and Crop Science2017Q2
Agronomy and Crop Science2018Q1
Agronomy and Crop Science2019Q2

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19990.979
Cites / Doc. (4 years)20000.888
Cites / Doc. (4 years)20010.827
Cites / Doc. (4 years)20020.833
Cites / Doc. (4 years)20030.976
Cites / Doc. (4 years)20041.118
Cites / Doc. (4 years)20051.138
Cites / Doc. (4 years)20060.996
Cites / Doc. (4 years)20071.052
Cites / Doc. (4 years)20081.326
Cites / Doc. (4 years)20091.134
Cites / Doc. (4 years)20101.163
Cites / Doc. (4 years)20111.111
Cites / Doc. (4 years)20120.905
Cites / Doc. (4 years)20130.830
Cites / Doc. (4 years)20141.042
Cites / Doc. (4 years)20151.669
Cites / Doc. (4 years)20161.545
Cites / Doc. (4 years)20171.417
Cites / Doc. (4 years)20181.478
Cites / Doc. (4 years)20191.599
Cites / Doc. (3 years)19990.979
Cites / Doc. (3 years)20000.801
Cites / Doc. (3 years)20010.765
Cites / Doc. (3 years)20020.719
Cites / Doc. (3 years)20030.916
Cites / Doc. (3 years)20041.177
Cites / Doc. (3 years)20051.022
Cites / Doc. (3 years)20060.824
Cites / Doc. (3 years)20070.954
Cites / Doc. (3 years)20081.205
Cites / Doc. (3 years)20091.157
Cites / Doc. (3 years)20100.975
Cites / Doc. (3 years)20110.775
Cites / Doc. (3 years)20120.645
Cites / Doc. (3 years)20130.817
Cites / Doc. (3 years)20141.049
Cites / Doc. (3 years)20151.781
Cites / Doc. (3 years)20161.072
Cites / Doc. (3 years)20171.346
Cites / Doc. (3 years)20181.383
Cites / Doc. (3 years)20191.465
Cites / Doc. (2 years)19991.065
Cites / Doc. (2 years)20000.698
Cites / Doc. (2 years)20010.612
Cites / Doc. (2 years)20020.589
Cites / Doc. (2 years)20031.067
Cites / Doc. (2 years)20041.079
Cites / Doc. (2 years)20050.886
Cites / Doc. (2 years)20060.707
Cites / Doc. (2 years)20070.773
Cites / Doc. (2 years)20081.263
Cites / Doc. (2 years)20090.771
Cites / Doc. (2 years)20100.519
Cites / Doc. (2 years)20110.494
Cites / Doc. (2 years)20120.623
Cites / Doc. (2 years)20130.757
Cites / Doc. (2 years)20141.081
Cites / Doc. (2 years)20151.458
Cites / Doc. (2 years)20161.000
Cites / Doc. (2 years)20171.329
Cites / Doc. (2 years)20181.300
Cites / Doc. (2 years)20191.422
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites199959
Self Cites200052
Self Cites200132
Self Cites200231
Self Cites200339
Self Cites200442
Self Cites200536
Self Cites200635
Self Cites200726
Self Cites200834
Self Cites200913
Self Cites201015
Self Cites201110
Self Cites201214
Self Cites201312
Self Cites201421
Self Cites201517
Self Cites20168
Self Cites20178
Self Cites201831
Self Cites201930
Total Cites1999234
Total Cites2000181
Total Cites2001163
Total Cites2002133
Total Cites2003163
Total Cites2004193
Total Cites2005184
Total Cites2006145
Total Cites2007165
Total Cites2008194
Total Cites2009162
Total Cites2010118
Total Cites201193
Total Cites201269
Total Cites201394
Total Cites2014107
Total Cites2015187
Total Cites2016104
Total Cites2017140
Total Cites2018177
Total Cites2019211
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document19990.732
External Cites per document20000.571
External Cites per document20010.615
External Cites per document20020.551
External Cites per document20030.697
External Cites per document20040.921
External Cites per document20050.822
External Cites per document20060.625
External Cites per document20070.803
External Cites per document20080.994
External Cites per document20091.064
External Cites per document20100.851
External Cites per document20110.692
External Cites per document20120.514
External Cites per document20130.713
External Cites per document20140.843
External Cites per document20151.619
External Cites per document20160.990
External Cites per document20171.269
External Cites per document20181.141
External Cites per document20191.257
Cites per document19990.979
Cites per document20000.801
Cites per document20010.765
Cites per document20020.719
Cites per document20030.916
Cites per document20041.177
Cites per document20051.022
Cites per document20060.824
Cites per document20070.954
Cites per document20081.205
Cites per document20091.157
Cites per document20100.975
Cites per document20110.775
Cites per document20120.645
Cites per document20130.817
Cites per document20141.049
Cites per document20151.781
Cites per document20161.072
Cites per document20171.346
Cites per document20181.383
Cites per document20191.465
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents19991
Non-citable documents20001
Non-citable documents20010
Non-citable documents20020
Non-citable documents20032
Non-citable documents20042
Non-citable documents20052
Non-citable documents20060
Non-citable documents20070
Non-citable documents20082
Non-citable documents20098
Non-citable documents20108
Non-citable documents20116
Non-citable documents20120
Non-citable documents20130
Non-citable documents20141
Non-citable documents20151
Non-citable documents20161
Non-citable documents20170
Non-citable documents20181
Non-citable documents20191
Citable documents1999239
Citable documents2000226
Citable documents2001213
Citable documents2002185
Citable documents2003178
Citable documents2004164
Citable documents2005180
Citable documents2006176
Citable documents2007173
Citable documents2008161
Citable documents2009140
Citable documents2010121
Citable documents2011120
Citable documents2012107
Citable documents2013115
Citable documents2014102
Citable documents2015105
Citable documents201697
Citable documents2017104
Citable documents2018128
Citable documents2019144
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents1999122
Uncited documents2000136
Uncited documents2001126
Uncited documents2002104
Uncited documents200393
Uncited documents200480
Uncited documents200584
Uncited documents200699
Uncited documents200787
Uncited documents200874
Uncited documents200979
Uncited documents201076
Uncited documents201178
Uncited documents201267
Uncited documents201364
Uncited documents201446
Uncited documents201538
Uncited documents201645
Uncited documents201735
Uncited documents201856
Uncited documents201947
Cited documents1999118
Cited documents200091
Cited documents200187
Cited documents200281
Cited documents200387
Cited documents200486
Cited documents200598
Cited documents200677
Cited documents200786
Cited documents200889
Cited documents200969
Cited documents201053
Cited documents201148
Cited documents201240
Cited documents201351
Cited documents201457
Cited documents201568
Cited documents201653
Cited documents201769
Cited documents201873
Cited documents201998
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