{"id":"https://openalex.org/W968175489","doi":null,"title":"Historical perspectives on multiple cropping.","display_name":"Historical perspectives on multiple cropping.","publication_year":1986,"publication_date":"1986-01-01","ids":{"openalex":"https://openalex.org/W968175489","mag":"968175489"},"language":"en","primary_location":{"id":"mag:968175489","doi":null,"is_oa":false,"landing_page_url":"https://www.cabdirect.org/cabdirect/abstract/19870797674?q=(do%3a%22Multiple+cropping+systems%22)","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5111426445","display_name":"Donald L. Plucknett","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Donald L. Plucknett","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101435596","display_name":"N. J. H. Smith","orcid":"https://orcid.org/0000-0001-5637-7964","observed_orcids":["https://orcid.org/0000-0001-5637-7964"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"N. J. H. Smith","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0001-5637-7964","affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5080855286","display_name":"Charles Andrew Francis","orcid":"https://orcid.org/0000-0002-8007-0329","observed_orcids":["https://orcid.org/0000-0002-8007-0329"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Charles Francis","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0002-8007-0329","affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.7592,"has_fulltext":false,"cited_by_count":24,"citation_normalized_percentile":{"value":0.85002622,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":87,"max":95},"biblio":{"volume":null,"issue":null,"first_page":"20","last_page":"39"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.8755000233650208,"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"}},"topics":[{"id":"https://openalex.org/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.8755000233650208,"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"}},{"id":"https://openalex.org/T13628","display_name":"Agricultural Productivity and Crop Improvement","score":0.02410000003874302,"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"}},{"id":"https://openalex.org/T10439","display_name":"Climate change impacts on agriculture","score":0.009499999694526196,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/multiple-cropping","display_name":"multiple cropping","score":1.0},{"id":"https://openalex.org/keywords/agricultural-history","display_name":"agricultural history","score":0.8420000076293945},{"id":"https://openalex.org/keywords/cropping-systems","display_name":"cropping systems","score":0.4230000078678131}],"concepts":[{"id":"https://openalex.org/C13558536","wikidata":"https://www.wikidata.org/wiki/Q785116","display_name":"Cropping","level":3,"score":0.6143906116485596},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.3340121805667877},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.24502962827682495},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.10328429937362671}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:968175489","doi":null,"is_oa":false,"landing_page_url":"https://www.cabdirect.org/cabdirect/abstract/19870797674?q=(do%3a%22Multiple+cropping+systems%22)","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.9208999872207642,"id":"https://metadata.un.org/sdg/2","display_name":"Zero hunger"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W217753280","https://openalex.org/W271909350","https://openalex.org/W632573752","https://openalex.org/W1133120523","https://openalex.org/W2243796748","https://openalex.org/W2237994404","https://openalex.org/W952201634","https://openalex.org/W3186442378","https://openalex.org/W6983592454","https://openalex.org/W1534853475"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2026-11-03T10:50:19.383937","created_date":"2016-06-24T00:00:00"}
