{"id":"https://openalex.org/W3033816370","doi":"https://doi.org/10.4067/s0718-58392020000200142","title":"Additive intercropping of sunflower and soybean to improve yield and land use efficiency: Effect of thinning interval and nitrogen fertilization","display_name":"Additive intercropping of sunflower and soybean to improve yield and land use efficiency: Effect of thinning interval and nitrogen fertilization","publication_year":2020,"publication_date":"2020-06-01","ids":{"openalex":"https://openalex.org/W3033816370","doi":"https://doi.org/10.4067/s0718-58392020000200142","mag":"3033816370"},"language":"en","primary_location":{"id":"doi:10.4067/s0718-58392020000200142","doi":"https://doi.org/10.4067/s0718-58392020000200142","is_oa":true,"landing_page_url":"https://doi.org/10.4067/s0718-58392020000200142","pdf_url":"https://scielo.conicyt.cl/pdf/chiljar/v80n2/0718-5839-chiljar-80-02-142.pdf","source":{"id":"https://openalex.org/S9179619","display_name":"Chilean journal of agricultural research","issn_l":"0718-5820","issn":["0718-5820","0718-5839"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","latindex","poland-40","russia-white-list-2","scielo","vabb-shw"],"host_organization":"https://openalex.org/P4310315524","host_organization_name":"Instituto de Investigaciones Agropecuarias, INIA","host_organization_lineage":["https://openalex.org/P4310315524"],"host_organization_lineage_names":["Instituto de Investigaciones Agropecuarias, INIA"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chilean journal of agricultural research","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://scielo.conicyt.cl/pdf/chiljar/v80n2/0718-5839-chiljar-80-02-142.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5108622853","display_name":"Ali I. Nawar","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I84524832","display_name":"Alexandria University","ror":"https://ror.org/00mzz1w90","country_code":"EG","type":"education","lineage":["https://openalex.org/I84524832"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Ali I. Nawar","raw_affiliation_strings":["Alexandria University, Alexandria, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Alexandria University, Alexandria, Egypt","institution_ids":["https://openalex.org/I84524832"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074410091","display_name":"Heba Sabry Attia Salama","orcid":"https://orcid.org/0000-0003-2883-0148","observed_orcids":["https://orcid.org/0000-0003-2883-0148"]},"institutions":[{"id":"https://openalex.org/I84524832","display_name":"Alexandria University","ror":"https://ror.org/00mzz1w90","country_code":"EG","type":"education","lineage":["https://openalex.org/I84524832"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Heba S.A. Salama","raw_affiliation_strings":["Alexandria University, Alexandria, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Alexandria University, Alexandria, Egypt","institution_ids":["https://openalex.org/I84524832"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102352670","display_name":"Hassan E. Khalil","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210165448","display_name":"Agricultural Research Center","ror":"https://ror.org/05hcacp57","country_code":"EG","type":"facility","lineage":["https://openalex.org/I4210165448"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Hassan E. Khalil","raw_affiliation_strings":["Agricultural Research Center, Cairo, Egypt"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Agricultural Research Center, Cairo, Egypt","institution_ids":["https://openalex.org/I4210165448"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.2005,"has_fulltext":true,"cited_by_count":22,"citation_normalized_percentile":{"value":0.86421989,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":99},"biblio":{"volume":"80","issue":"2","first_page":"142","last_page":"152"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.9980000257492065,"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":0.9980000257492065,"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/T12742","display_name":"Sunflower and Safflower Cultivation","score":0.0017999999690800905,"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/T12294","display_name":"Agricultural Science and Fertilization","score":0.0,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/sunflower","display_name":"sunflower","score":0.8339999914169312},{"id":"https://openalex.org/keywords/soybean","display_name":"soybean","score":0.9990000128746033},{"id":"https://openalex.org/keywords/nitrogen-fertilization","display_name":"nitrogen fertilization","score":0.9940000176429749},{"id":"https://openalex.org/keywords/land-use-efficiency","display_name":"land use efficiency","score":0.8330000042915344},{"id":"https://openalex.org/keywords/land-equivalent-ratio","display_name":"land equivalent ratio","score":0.9589999914169312},{"id":"https://openalex.org/keywords/seed-yield","display_name":"seed yield","score":0.9039999842643738},{"id":"https://openalex.org/keywords/seed-oil-content","display_name":"seed oil content","score":0.8790000081062317},{"id":"https://openalex.org/keywords/oilseed-crops","display_name":"oilseed crops","score":0.8309999704360962},{"id":"https://openalex.org/keywords/low-input-agriculture","display_name":"low-input agriculture","score":0.7789999842643738}],"concepts":[{"id":"https://openalex.org/C2781208722","wikidata":"https://www.wikidata.org/wiki/Q853859","display_name":"Intercropping","level":2,"score":0.9473342895507812},{"id":"https://openalex.org/C2779197568","wikidata":"https://www.wikidata.org/wiki/Q423986","display_name":"Sunflower","level":2,"score":0.8659071326255798},{"id":"https://openalex.org/C2781353100","wikidata":"https://www.wikidata.org/wiki/Q1266974","display_name":"Thinning","level":2,"score":0.8168371319770813},{"id":"https://openalex.org/C2778181364","wikidata":"https://www.wikidata.org/wiki/Q171497","display_name":"Helianthus annuus","level":3,"score":0.6876555681228638},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.6768662929534912},{"id":"https://openalex.org/C168741863","wikidata":"https://www.wikidata.org/wiki/Q777671","display_name":"Sowing","level":2,"score":0.6601670384407043},{"id":"https://openalex.org/C2780560099","wikidata":"https://www.wikidata.org/wiki/Q83323","display_name":"Fertilizer","level":2,"score":0.5047916173934937},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.4918489456176758},{"id":"https://openalex.org/C137580998","wikidata":"https://www.wikidata.org/wiki/Q235352","display_name":"Crop","level":2,"score":0.4383808374404907},{"id":"https://openalex.org/C88972607","wikidata":"https://www.wikidata.org/wiki/Q2666904","display_name":"Human fertilization","level":2,"score":0.42457693815231323},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.38810065388679504},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.38292309641838074},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","level":1,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.4067/s0718-58392020000200142","doi":"https://doi.org/10.4067/s0718-58392020000200142","is_oa":true,"landing_page_url":"https://doi.org/10.4067/s0718-58392020000200142","pdf_url":"https://scielo.conicyt.cl/pdf/chiljar/v80n2/0718-5839-chiljar-80-02-142.pdf","source":{"id":"https://openalex.org/S9179619","display_name":"Chilean journal of agricultural research","issn_l":"0718-5820","issn":["0718-5820","0718-5839"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","latindex","poland-40","russia-white-list-2","scielo","vabb-shw"],"host_organization":"https://openalex.org/P4310315524","host_organization_name":"Instituto de Investigaciones Agropecuarias, INIA","host_organization_lineage":["https://openalex.org/P4310315524"],"host_organization_lineage_names":["Instituto de Investigaciones Agropecuarias, INIA"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chilean journal of agricultural research","raw_type":"journal-article"},{"id":"pmh:oai:scielo:S0718-58392020000200142","doi":null,"is_oa":true,"landing_page_url":"http://www.scielo.cl/scielo.php?script=sci_arttext&amp;pid=S0718-58392020000200142","pdf_url":null,"source":{"id":"https://openalex.org/S4306402641","display_name":"LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Cient\u00edficas)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I4383465926","host_organization_name":"LA Referencia","host_organization_lineage":["https://openalex.org/I4383465926"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chilean journal of agricultural research v.80 n.2 2020","raw_type":"info:eu-repo/semantics/publishedVersion"},{"id":"pmh:oai:americanae.aecid.es:2861744","doi":null,"is_oa":true,"landing_page_url":"http://americanae.aecid.es/americanae/es/registros/registro.do?tipoRegistro=MTD&idBib=2861744","pdf_url":null,"source":{"id":"https://openalex.org/S4306400786","display_name":"Americanae (AECID Library)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Chilean journal of agricultural research v.80 n.2 2020","raw_type":"info:eu-repo/semantics/publishedVersion"}],"best_oa_location":{"id":"doi:10.4067/s0718-58392020000200142","doi":"https://doi.org/10.4067/s0718-58392020000200142","is_oa":true,"landing_page_url":"https://doi.org/10.4067/s0718-58392020000200142","pdf_url":"https://scielo.conicyt.cl/pdf/chiljar/v80n2/0718-5839-chiljar-80-02-142.pdf","source":{"id":"https://openalex.org/S9179619","display_name":"Chilean journal of agricultural research","issn_l":"0718-5820","issn":["0718-5820","0718-5839"],"is_oa":true,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","latindex","poland-40","russia-white-list-2","scielo","vabb-shw"],"host_organization":"https://openalex.org/P4310315524","host_organization_name":"Instituto de Investigaciones Agropecuarias, INIA","host_organization_lineage":["https://openalex.org/P4310315524"],"host_organization_lineage_names":["Instituto de Investigaciones Agropecuarias, INIA"],"type":"journal"},"license":"cc-by-nc","license_id":"https://openalex.org/licenses/cc-by-nc","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Chilean journal of agricultural research","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/2","score":1.0,"display_name":"Zero hunger"},{"id":"https://metadata.un.org/sdg/15","score":0.4390000104904175,"display_name":"Life on land"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3033816370.pdf","grobid_xml":"https://content.openalex.org/works/W3033816370.grobid-xml"},"referenced_works_count":21,"referenced_works":["https://openalex.org/W1543900861","https://openalex.org/W1809985043","https://openalex.org/W1966764076","https://openalex.org/W1989750273","https://openalex.org/W1994408625","https://openalex.org/W2033157994","https://openalex.org/W2034601884","https://openalex.org/W2053614447","https://openalex.org/W2144682465","https://openalex.org/W2167889574","https://openalex.org/W2318956524","https://openalex.org/W2563255530","https://openalex.org/W2591268771","https://openalex.org/W2605767643","https://openalex.org/W2725102736","https://openalex.org/W2778121571","https://openalex.org/W3025485128","https://openalex.org/W3033609815","https://openalex.org/W3153891477","https://openalex.org/W4229688879","https://openalex.org/W4295332220"],"related_works":["https://openalex.org/W3010347232","https://openalex.org/W2605767643","https://openalex.org/W2399146753","https://openalex.org/W2938334073","https://openalex.org/W4290030078","https://openalex.org/W2009369803","https://openalex.org/W2950036607","https://openalex.org/W2187164052","https://openalex.org/W3184988110","https://openalex.org/W3113157429"],"abstract_inverted_index":{"An":[0],"additive":[1,219],"intercropping":[2,190,212],"model":[3],"was":[4,36,156,163],"adopted":[5],"to":[6,208],"improve":[7],"land":[8,54,182],"use":[9,55],"efficiency":[10,56],"and":[11,27,46,53,69,76,83,91,94,110,113,126,129,136,144,146,169,174,178,192,221,246],"productivity":[12],"of":[13,44,57,80,153,160,189,211],"two":[14],"prominent":[15],"oil":[16,158],"crops":[17,162,248],"grown":[18],"in":[19,38,103,122,176,217,231,257],"Egypt,":[20],"that":[21],"is,":[22],"sunflower":[23,90,108,135,177,191,245],"(Helianthus":[24],"annuus":[25],"L.)":[26],"soybean":[28,193,247],"(Glycine":[29],"max":[30],"[L.]":[31],"Merr.)A":[32],"2-yr":[33],"field":[34],"trial":[35],"conducted":[37],"Northern":[39],"Egypt":[40],"during":[41],"the":[42,58,123,151,167,181,187,197,209],"summers":[43],"2017":[45],"2018.The":[47],"effects":[48],"on":[49],"yield,":[50],"crop":[51],"components,":[52],"system":[59],"were":[60],"tested":[61],"with":[62,214],"three":[63,77],"N":[64,72,154,227],"fertilizer":[65,228],"rates":[66,155,229],"(70,":[67],"105,":[68],"140":[70],"kg":[71],"ha":[73,132],"-1":[74,133],")":[75],"thinning":[78,99,139,223,239],"intervals":[79,224],"15,":[81],"30,":[82,92],"45":[84],"d":[85],"after":[86],"sowing":[87],"(DAS)":[88],"for":[89,97,134,251],"45,":[93],"65":[95],"DAS":[96],"soybean.Late":[98],"increased":[100],"plant":[101],"height":[102],"both":[104,161],"crops,":[105],"but":[106],"reduced":[107,240],"stem":[109],"head":[111],"diameters":[112],"seed":[114,119,142],"weight":[115],"per":[116],"head.The":[117],"maximum":[118],"yield":[120,143,232,241],"occurred":[121],"pure":[124],"stands":[125],"reached":[127],"4.00":[128],"1.61":[130],"t":[131],"soybean,":[137,179],"respectively.Early":[138],"positively":[140],"affected":[141,165],"fresh":[145],"dry":[147],"biological":[148],"yields,":[149],"while":[150,237],"effect":[152,210],"limited.Seed":[157],"content":[159],"slightly":[164],"by":[166],"treatments":[168],"generally":[170],"averaged":[171],"approximately":[172],"50%":[173],"20%":[175],"respectively.While":[180],"equivalent":[183,199],"ratio":[184,200],"(LER)":[185],"indicated":[186],"advantage":[188],"(LER":[194],">":[195,235],"1),":[196,236],"DM":[198],"(DMER)":[201],"provided":[202],"a":[203],"more":[204],"realistic":[205],"estimate":[206],"as":[207],"compared":[213],"sole":[215],"cropping":[216],"an":[218],"model.Early":[220],"intermediate":[222],"across":[225],"all":[226],"resulted":[230],"gain":[233],"(DMER":[234,242],"late":[238],"<":[243],"1).Intercropping":[244],"is":[249],"recommended":[250],"low":[252],"input":[253],"farming":[254],"systems,":[255],"particularly":[256],"developing":[258],"countries.":[259]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":8},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2}],"updated_date":"2026-10-16T09:59:22.235173","created_date":"2020-06-12T00:00:00"}