{"id":"https://openalex.org/W1998537487","doi":"https://doi.org/10.2134/agronj1974.00021962006600060027x","title":"Effects of Weed Control and N Fertilization at Establishment on the Growth and Nodulation of Alfalfa1","display_name":"Effects of Weed Control and N Fertilization at Establishment on the Growth and Nodulation of Alfalfa1","publication_year":1974,"publication_date":"1974-11-01","ids":{"openalex":"https://openalex.org/W1998537487","doi":"https://doi.org/10.2134/agronj1974.00021962006600060027x","mag":"1998537487"},"language":"en","primary_location":{"id":"doi:10.2134/agronj1974.00021962006600060027x","doi":"https://doi.org/10.2134/agronj1974.00021962006600060027x","is_oa":false,"landing_page_url":"https://doi.org/10.2134/agronj1974.00021962006600060027x","pdf_url":null,"source":{"id":"https://openalex.org/S139950591","display_name":"Agronomy Journal","issn_l":"0002-1962","issn":["0002-1962","1072-9623","1435-0645"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","ki-jl-1","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Agronomy Journal","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"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/A5091497076","display_name":"H. Tapani Kunelius","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1331897569","display_name":"Agriculture and Agri-Food Canada","ror":"https://ror.org/051dzs374","country_code":"CA","type":"government","lineage":["https://openalex.org/I1331897569","https://openalex.org/I2802286613"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"H. T. Kunelius","raw_affiliation_strings":["Research Scientist, Research Station, Agriculture Canada, P.O. Box 1210, Charlottetown, Prince Edward Island, Canada, CIA 7M8"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Scientist, Research Station, Agriculture Canada, P.O. Box 1210, Charlottetown, Prince Edward Island, Canada, CIA 7M8","institution_ids":["https://openalex.org/I1331897569"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5091497076"],"corresponding_institution_ids":["https://openalex.org/I1331897569"],"apc_list":{"value":1800,"currency":"USD","value_usd":1800},"apc_paid":null,"fwci":1.5397,"has_fulltext":false,"cited_by_count":25,"citation_normalized_percentile":{"value":0.78362573,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":95},"biblio":{"volume":"66","issue":"6","first_page":"806","last_page":"809"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10774","display_name":"Weed Control and Herbicide Applications","score":0.9570000171661377,"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"}},"topics":[{"id":"https://openalex.org/T10774","display_name":"Weed Control and Herbicide Applications","score":0.9570000171661377,"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/T13591","display_name":"Pasture and Agricultural Systems","score":0.008999999612569809,"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/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.007799999788403511,"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/alfalfa","display_name":"alfalfa","score":0.9800000190734863},{"id":"https://openalex.org/keywords/weed-control","display_name":"weed control","score":0.9950000047683716},{"id":"https://openalex.org/keywords/nitrogen-fertilization","display_name":"nitrogen fertilization","score":0.9380000233650208},{"id":"https://openalex.org/keywords/seedling-growth","display_name":"seedling growth","score":0.7160000205039978},{"id":"https://openalex.org/keywords/root-nodulation","display_name":"root nodulation","score":0.9490000009536743},{"id":"https://openalex.org/keywords/2-4-d","display_name":"2,4-D","score":0.7329999804496765},{"id":"https://openalex.org/keywords/dalapon","display_name":"dalapon","score":0.8700000047683716},{"id":"https://openalex.org/keywords/hand-weeding","display_name":"hand weeding","score":0.7710000276565552},{"id":"https://openalex.org/keywords/dry-matter-yield","display_name":"dry matter yield","score":0.8209999799728394},{"id":"https://openalex.org/keywords/nodule-size","display_name":"nodule size","score":0.6809999942779541},{"id":"https://openalex.org/keywords/tissue-nitrogen-content","display_name":"tissue nitrogen content","score":0.6570000052452087}],"concepts":[{"id":"https://openalex.org/C2779370140","wikidata":"https://www.wikidata.org/wiki/Q13377214","display_name":"Forage","level":2,"score":0.7461863160133362},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.7282865643501282},{"id":"https://openalex.org/C147273371","wikidata":"https://www.wikidata.org/wiki/Q2739141","display_name":"Weed control","level":2,"score":0.7037423253059387},{"id":"https://openalex.org/C2775891814","wikidata":"https://www.wikidata.org/wiki/Q101879","display_name":"Weed","level":2,"score":0.6959752440452576},{"id":"https://openalex.org/C2776632002","wikidata":"https://www.wikidata.org/wiki/Q145909","display_name":"Legume","level":2,"score":0.6854121685028076},{"id":"https://openalex.org/C2776096895","wikidata":"https://www.wikidata.org/wiki/Q1385709","display_name":"Seedling","level":2,"score":0.679206371307373},{"id":"https://openalex.org/C2992847057","wikidata":"https://www.wikidata.org/wiki/Q156106","display_name":"Medicago sativa","level":2,"score":0.6488938331604004},{"id":"https://openalex.org/C88972607","wikidata":"https://www.wikidata.org/wiki/Q2666904","display_name":"Human fertilization","level":2,"score":0.5563673377037048},{"id":"https://openalex.org/C2780138947","wikidata":"https://www.wikidata.org/wiki/Q393855","display_name":"Dry matter","level":2,"score":0.5489559173583984},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.5438419580459595},{"id":"https://openalex.org/C91306197","wikidata":"https://www.wikidata.org/wiki/Q45767","display_name":"Competition (biology)","level":2,"score":0.4211432933807373},{"id":"https://openalex.org/C2779843069","wikidata":"https://www.wikidata.org/wiki/Q193213","display_name":"Butyric acid","level":2,"score":0.4135042130947113},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2134/agronj1974.00021962006600060027x","doi":"https://doi.org/10.2134/agronj1974.00021962006600060027x","is_oa":false,"landing_page_url":"https://doi.org/10.2134/agronj1974.00021962006600060027x","pdf_url":null,"source":{"id":"https://openalex.org/S139950591","display_name":"Agronomy Journal","issn_l":"0002-1962","issn":["0002-1962","1072-9623","1435-0645"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","ki-jl-1","norway-1","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Agronomy Journal","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.9208999872207642,"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2"},{"score":0.7605999708175659,"display_name":"Life on land","id":"https://metadata.un.org/sdg/15"}],"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/W2776358220","https://openalex.org/W2119147725","https://openalex.org/W2017346610","https://openalex.org/W2043228855","https://openalex.org/W7164466617","https://openalex.org/W2087044932","https://openalex.org/W2036436216","https://openalex.org/W1569037956","https://openalex.org/W2019684505","https://openalex.org/W1997120228"],"abstract_inverted_index":{"Abstract":[0],"The":[1,28,261],"establishment":[2],"of":[3,24,30,38,53,89,97,109,120,133,147,161,163,175,183,205,213,225,237,253,265],"productive":[4],"alfalfa":[5,56,98,148,176,226,254],"(Medicago":[6],"sativa":[7],"L.)":[8],"stands":[9],"is":[10],"greatly":[11],"dependent":[12],"on":[13,20,48,59],"competition":[14],"by":[15,106,180,191,202,230],"other":[16],"plant":[17,216],"species":[18],"and":[19,51,65,142,157,165,207],"the":[21,25,36,90,100,115,130,134,144,150,170,181,211,234,241],"seedling":[22,49],"development":[23],"forage":[26,91],"legume.":[27,92],"objective":[29],"this":[31],"study":[32],"was":[33,57,188,200,217,228],"to":[34,111,155,159],"determine":[35],"effects":[37],"weed":[39,62,184,266],"control":[40,267],"methods":[41],"in":[42,99,117,149,194,219,233,248],"combination":[43],"with":[44,77,140,258],"N":[45,78,107,193,203,224,232,245,251,262],"fertilization":[46],"rate":[47,263],"growth":[50,187],"nodulation":[52],"alfalfa.":[54],"\u2018Saranac\u2019":[55],"established":[58],"check":[60,116,164],"(no":[61],"control),":[63],"handweeded,":[64],"herbicide":[66],"4\u2010(2,4\u2010":[67],"dichlorophenoxy)butyric":[68],"acid":[69,72],"+":[70],"2,2\u2010dichloropropionic":[71],"(2,4\u2010DB":[73],"\u2010f\u2010":[74],"dalapon)":[75],"plots":[76,138],"applied":[79,124,192,231],"at":[80,87,125],"0,":[81],"25,":[82],"50":[83,112,206],"or":[84],"100":[85,208],"kg/ha":[86,113],"emergence":[88],"Dry":[93],"matter":[94],"(DM)":[95],"yields":[96,132,146,174],"first":[101,151,235],"cutting":[102,152,236],"were":[103,153,177,272],"significantly":[104,189],"increased":[105,190,229],"applications":[108,204],"25":[110],"over":[114],"two":[118,238],"out":[119],"three":[121],"experiments.":[122,239],"Nitrogen":[123],"seeding":[126],"did":[127],"not":[128,178,273],"influence":[129],"DM":[131,145,173],"second":[135,171,242],"cutting.":[136],"On":[137],"treated":[139],"2,4\u2010DB":[141],"dalapon,":[143],"30":[154],"81%":[156],"11":[158],"78%":[160],"those":[162],"handweeded":[166],"plots,":[167],"respectively.":[168],"In":[169,240],"cutting,":[172,243],"affected":[179],"method":[182],"control.":[185],"Weed":[186],"one":[195,220],"experiment":[196],"only.":[197],"Nodule":[198],"size":[199],"reduced":[201],"kg/ha.":[209],"Similarly,":[210],"number":[212],"nodules":[214],"per":[215],"decreased":[218],"experiment.":[221],"Percent":[222],"total":[223],"tissue":[227,255],"high":[244],"rates":[246],"resulted":[247],"a":[249],"lower":[250],"content":[252],"which":[256],"coincided":[257],"poor":[259],"nodulation.":[260],"\u2715method":[264],"interactions":[268],"for":[269],"most":[270],"criteria":[271],"statistically":[274],"significant.":[275]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2023,"cited_by_count":1}],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}
