{"id":"https://openalex.org/W2014427779","doi":"https://doi.org/10.2134/agronj1982.00021962007400050033x","title":"Sunflower Nutrient Uptake, Growth, and Yield as Affected by Nitrogen or Manure, and Plant Population1","display_name":"Sunflower Nutrient Uptake, Growth, and Yield as Affected by Nitrogen or Manure, and Plant Population1","publication_year":1982,"publication_date":"1982-09-01","ids":{"openalex":"https://openalex.org/W2014427779","doi":"https://doi.org/10.2134/agronj1982.00021962007400050033x","mag":"2014427779"},"language":"en","primary_location":{"id":"doi:10.2134/agronj1982.00021962007400050033x","doi":"https://doi.org/10.2134/agronj1982.00021962007400050033x","is_oa":false,"landing_page_url":"https://doi.org/10.2134/agronj1982.00021962007400050033x","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/A5067519289","display_name":"Aubra C. Mathers","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"A. C. Mathers","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5108107023","display_name":"Barbara Ann Stewart","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210160422","display_name":"Conservation and Production Research Laboratory","ror":"https://ror.org/05x4p3529","country_code":"US","type":"facility","lineage":["https://openalex.org/I1312222531","https://openalex.org/I1336096307","https://openalex.org/I4210145274","https://openalex.org/I4210160422"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"B. A. Stewart","raw_affiliation_strings":["Soil scientist and laboratory director, USDA-ARS, USDA Conservation and Production Research Laboratory, Bushland, TX 79012"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Soil scientist and laboratory director, USDA-ARS, USDA Conservation and Production Research Laboratory, Bushland, TX 79012","institution_ids":["https://openalex.org/I4210160422"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1800,"currency":"USD","value_usd":1800},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":34,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":95},"biblio":{"volume":"74","issue":"5","first_page":"911","last_page":"915"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12742","display_name":"Sunflower and Safflower Cultivation","score":0.9994999766349792,"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/T12742","display_name":"Sunflower and Safflower Cultivation","score":0.9994999766349792,"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":0.0003000000142492354,"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/T12310","display_name":"Crop Yield and Soil Fertility","score":9.999999747378752e-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"}}],"keywords":[{"id":"https://openalex.org/keywords/sunflower","display_name":"sunflower","score":1.0},{"id":"https://openalex.org/keywords/nitrogen-fertilization","display_name":"nitrogen fertilization","score":0.8619999885559082},{"id":"https://openalex.org/keywords/manure","display_name":"manure","score":0.9580000042915344},{"id":"https://openalex.org/keywords/plant-population","display_name":"plant population","score":0.9549999833106995},{"id":"https://openalex.org/keywords/row-spacing","display_name":"row spacing","score":0.9990000128746033},{"id":"https://openalex.org/keywords/nutrient-uptake","display_name":"nutrient uptake","score":0.7559999823570251},{"id":"https://openalex.org/keywords/seed-yield","display_name":"seed yield","score":0.7940000295639038},{"id":"https://openalex.org/keywords/oil-content","display_name":"oil content","score":0.7250000238418579},{"id":"https://openalex.org/keywords/dry-matter-yield","display_name":"dry matter yield","score":0.8809999823570251},{"id":"https://openalex.org/keywords/pullman-clay-loam","display_name":"Pullman clay loam","score":0.7519999742507935},{"id":"https://openalex.org/keywords/southern-high-plains","display_name":"Southern High Plains","score":0.8069999814033508}],"concepts":[{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.7181218266487122},{"id":"https://openalex.org/C113578266","wikidata":"https://www.wikidata.org/wiki/Q1131303","display_name":"Loam","level":3,"score":0.704208254814148},{"id":"https://openalex.org/C2779197568","wikidata":"https://www.wikidata.org/wiki/Q423986","display_name":"Sunflower","level":2,"score":0.7026428580284119},{"id":"https://openalex.org/C2780138947","wikidata":"https://www.wikidata.org/wiki/Q393855","display_name":"Dry matter","level":2,"score":0.674992024898529},{"id":"https://openalex.org/C168741863","wikidata":"https://www.wikidata.org/wiki/Q777671","display_name":"Sowing","level":2,"score":0.6723167896270752},{"id":"https://openalex.org/C2778181364","wikidata":"https://www.wikidata.org/wiki/Q171497","display_name":"Helianthus annuus","level":3,"score":0.6086578965187073},{"id":"https://openalex.org/C2908647359","wikidata":"https://www.wikidata.org/wiki/Q2625603","display_name":"Population","level":2,"score":0.5691479444503784},{"id":"https://openalex.org/C38304854","wikidata":"https://www.wikidata.org/wiki/Q185716","display_name":"Manure","level":2,"score":0.5443730354309082},{"id":"https://openalex.org/C142796444","wikidata":"https://www.wikidata.org/wiki/Q181394","display_name":"Nutrient","level":2,"score":0.5161250829696655},{"id":"https://openalex.org/C88862950","wikidata":"https://www.wikidata.org/wiki/Q11453","display_name":"Irrigation","level":2,"score":0.5001587867736816},{"id":"https://openalex.org/C2780560099","wikidata":"https://www.wikidata.org/wiki/Q83323","display_name":"Fertilizer","level":2,"score":0.4377075433731079},{"id":"https://openalex.org/C510538283","wikidata":"https://www.wikidata.org/wiki/Q674","display_name":"Phosphorus","level":2,"score":0.4144169092178345},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.29265040159225464},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.2556267976760864},{"id":"https://openalex.org/C159750122","wikidata":"https://www.wikidata.org/wiki/Q96621023","display_name":"Soil water","level":2,"score":0.17537784576416016},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C149923435","wikidata":"https://www.wikidata.org/wiki/Q37732","display_name":"Demography","level":1,"score":0.0},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2134/agronj1982.00021962007400050033x","doi":"https://doi.org/10.2134/agronj1982.00021962007400050033x","is_oa":false,"landing_page_url":"https://doi.org/10.2134/agronj1982.00021962007400050033x","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":[{"id":"https://metadata.un.org/sdg/2","score":0.991100013256073,"display_name":"Zero hunger"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7011923174","https://openalex.org/W2033706503","https://openalex.org/W2172090147","https://openalex.org/W30588836","https://openalex.org/W2221271845","https://openalex.org/W2276958884","https://openalex.org/W1992279924","https://openalex.org/W2992886124","https://openalex.org/W7026635070","https://openalex.org/W2129986336"],"abstract_inverted_index":{"Abstract":[0],"Sunflower":[1],"(Helianthus":[2],"annuus":[3],"L.)":[4],"is":[5,192],"a":[6,80,228],"new":[7],"crop":[8,104],"in":[9,23,79,84,187,190,202,212,221],"the":[10,29,140,144,166,178,198],"Southern":[11],"High":[12],"Plains.":[13],"It":[14],"was":[15,105,147,302],"grown":[16,78],"on":[17,38,143,165,177],"Pullman":[18],"clay":[19],"loam":[20],"(Torrertic":[21],"Paleustoll)":[22],"an":[24],"experiment":[25],"designed":[26],"to":[27,107,194,227,309],"determine":[28],"effects":[30,218],"of":[31,59,65,70,255],"N,":[32,261],"plant":[33,236],"population,":[34],"and":[35,41,49,53,61,73,89,127,131,168,175,207,235,241,271],"row":[36,86,233],"spacing":[37],"growth,":[39],"yield,":[40],"nutrient":[42,242],"uptake.":[43],"Fertility":[44],"treatments":[45,153,171,180],"were":[46,77,98,118,134,163,219,224],"0,":[47],"84,":[48],"168":[50],"kg":[51,260,263,266,269,273,277],"N/ha":[52,278],"residue":[54],"from":[55,307],"three":[56],"annual":[57],"applications":[58],"22":[60],"67":[62],"metric":[63,253],"tons":[64,254],"manure/ha":[66],"(wet":[67],"wt.).":[68],"Populations":[69],"37,":[71],"62,":[72],"99":[74,310],"thousand":[75],"plants/ha":[76],"bed\u2010furrow":[81],"irrigation":[82],"system":[83],"two":[85,90],"spacings":[87,234],"(one":[88],"rows":[91],"30":[92],"cm":[93],"apart)":[94],"per":[95],"bed.":[96],"Beds":[97],"spaced":[99],"1":[100],"m":[101],"apart.":[102],"The":[103,275],"irrigated":[106],"provide":[108],"adequate":[109],"water.":[110],"Beginning":[111],"about":[112,251],"7":[113],"weeks":[114],"after":[115],"planting,":[116],"samples":[117],"taken":[119,135],"at":[120,136],"2\u2010week":[121],"intervals":[122],"for":[123,283],"dry":[124,256],"matter":[125,240],"yields":[126,133,156,162,223],"chemical":[128],"analyses.":[129],"Seed":[130],"oil":[132,210],"maturity.":[137],"In":[138,160],"1975,":[139,222],"seed":[141,199],"yield":[142,186,243],"unfertilized":[145,167],"treatment":[146],"1,950":[148],"kg/ha,":[149],"whereas":[150],"all":[151],"other":[152],"produced":[154,250],"similar":[155,164,176],"averaging":[157],"2,850":[158],"kg/ha.":[159],"1976,":[161],"inorganic":[169,298],"N":[170,205,282],"(avg.":[172,181],"2,000":[173],"kg/ha)":[174],"manure":[179,208,288],"2,330":[182],"kg/ha).":[183],"Lower":[184],"sunflower":[185,249,285],"1976":[188],"than":[189],"1975":[191],"attributed":[193],"higher":[195],"temperatures":[196],"during":[197],"filling":[200],"period":[201],"1976.":[203],"Both":[204],"fertilizer":[206],"reduced":[209],"percentage":[211],"seed.":[213],"Even":[214],"though":[215],"statistically":[216],"significant":[217],"found":[220],"not":[225,295,303],"affected":[226],"large":[229],"degree":[230],"by":[231,297],"differential":[232],"population":[237],"treatments.":[238],"Dry":[239],"curves":[244],"showed":[245],"that":[246],"adequately":[247],"fertilized":[248],"10":[252],"matter/ha":[257],"containing":[258],"200":[259],"35":[262],"P,":[264],"450":[265],"K,":[267],"180":[268],"Ca,":[270],"45":[272],"Mg/ha.":[274],"84":[276],"rate":[279],"supplied":[280,289,296],"sufficient":[281],"maximum":[284],"yields.":[286,314],"Apparently,":[287],"some":[290],"needed":[291],"element":[292],"or":[293],"condition":[294],"N.":[299],"That":[300],"factor":[301],"identified.":[304],"Plant":[305],"populations":[306],"37":[308],"thousand/ha":[311],"gave":[312],"satisfactory":[313]},"counts_by_year":[{"year":2023,"cited_by_count":2},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}
