{"id":"https://openalex.org/A5113582872","orcid":null,"observed_orcids":[],"display_name":"A. V. Barker","raw_author_names":["A. V. Barker","A.V. Barker"],"full_name":"A. V. Barker","works_count":37,"cited_by_count":1341,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":18,"i10_index":27},"ids":{"openalex":"https://openalex.org/A5113582872","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I1312222531","ror":"https://ror.org/02d2m2044","display_name":"Agricultural Research Service","country_code":"US","type":"government","lineage":["https://openalex.org/I1312222531","https://openalex.org/I1336096307"]},"years":[1968]},{"institution":{"id":"https://openalex.org/I1336096307","ror":"https://ror.org/01na82s61","display_name":"United States Department of Agriculture","country_code":"US","type":"government","lineage":["https://openalex.org/I1336096307"]},"years":[1968]},{"institution":{"id":"https://openalex.org/I137902535","ror":"https://ror.org/04tj63d06","display_name":"North Carolina State University","country_code":"US","type":"education","lineage":["https://openalex.org/I137902535"]},"years":[1966]},{"institution":{"id":"https://openalex.org/I24603500","ror":"https://ror.org/0072zz521","display_name":"University of Massachusetts Amherst","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]},"years":[2017,2016,2015,2014,2003,1989,1988,1987,1986,1984,1983,1981,1980,1979,1978,1976,1972,1970,1967,1966]},{"institution":{"id":"https://openalex.org/I4405272483","ror":"https://ror.org/047v3j792","display_name":"Massachusetts Agricultural Experiment Station","country_code":"US","type":"facility","lineage":["https://openalex.org/I4405272483"]},"years":[1983,1982,1981]},{"institution":{"id":"https://openalex.org/I87216513","ror":"https://ror.org/05hs6h993","display_name":"Michigan State University","country_code":"US","type":"education","lineage":["https://openalex.org/I87216513"]},"years":[1968]}],"last_known_institutions":[{"id":"https://openalex.org/I24603500","ror":"https://ror.org/0072zz521","display_name":"University of Massachusetts Amherst","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"topics":[{"id":"https://openalex.org/T11247","display_name":"Plant nutrient uptake and metabolism","count":24,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12754","display_name":"Plant Growth and Agriculture Techniques","count":21,"subfield":{"id":"https://openalex.org/subfields/1111","display_name":"Soil Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12294","display_name":"Agricultural Science and Fertilization","count":15,"subfield":{"id":"https://openalex.org/subfields/1111","display_name":"Soil Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T10014","display_name":"Plant Stress Responses and Tolerance","count":6,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12113","display_name":"Growth and nutrition in plants","count":6,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11247","display_name":"Plant nutrient uptake and metabolism","value":0.0001344,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12754","display_name":"Plant Growth and Agriculture Techniques","value":3.13e-05,"subfield":{"id":"https://openalex.org/subfields/1111","display_name":"Soil Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12113","display_name":"Growth and nutrition in plants","value":2.94e-05,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T11470","display_name":"Legume Nitrogen Fixing Symbiosis","value":2.9e-05,"subfield":{"id":"https://openalex.org/subfields/1110","display_name":"Plant Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12566","display_name":"Nitrogen and Sulfur Effects on Brassica","value":2.76e-05,"subfield":{"id":"https://openalex.org/subfields/1102","display_name":"Agronomy and Crop Science"},"field":{"id":"https://openalex.org/fields/11","display_name":"Agricultural and Biological Sciences"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"x_concepts":[{"id":"185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","score":0.9815506935119629},{"id":"6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","score":0.845831036567688},{"id":"86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","score":0.6035740971565247},{"id":"144027150","wikidata":"https://www.wikidata.org/wiki/Q48803","display_name":"Horticulture","score":0.5450295805931091},{"id":"178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","score":0.28466707468032837}],"counts_by_year":[{"year":1964,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1965,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1966,"works_count":3,"oa_works_count":2,"cited_by_count":0},{"year":1967,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":1968,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1970,"works_count":3,"oa_works_count":0,"cited_by_count":0},{"year":1971,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1972,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1976,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1978,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1979,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":1980,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1981,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1982,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1983,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1984,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":1986,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1987,"works_count":2,"oa_works_count":1,"cited_by_count":0},{"year":1988,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1989,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":1997,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2003,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2004,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":0,"oa_works_count":0,"cited_by_count":34},{"year":2013,"works_count":0,"oa_works_count":0,"cited_by_count":18},{"year":2014,"works_count":1,"oa_works_count":0,"cited_by_count":21},{"year":2015,"works_count":1,"oa_works_count":0,"cited_by_count":24},{"year":2016,"works_count":2,"oa_works_count":0,"cited_by_count":27},{"year":2017,"works_count":1,"oa_works_count":0,"cited_by_count":29},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":31},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":43},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":60},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":59},{"year":2022,"works_count":0,"oa_works_count":0,"cited_by_count":44},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":44},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":38},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":40},{"year":2026,"works_count":0,"oa_works_count":0,"cited_by_count":40}],"display_name_alternatives":["A. V. Barker","A.V. Barker"],"block_key":"a barker","works_api_url":"https://api.openalex.org/works?filter=author.id:A5113582872","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5113582872","updated_date":"2026-11-11T13:02:13","created_date":"2016-06-24T00:00:00"}
