{"id":"https://openalex.org/W2021817815","doi":"https://doi.org/10.2134/jpa1989.0273","title":"Tillage System Effects on Crop Growth and Production Costs for a Corn\u2010Soybean Rotation","display_name":"Tillage System Effects on Crop Growth and Production Costs for a Corn\u2010Soybean Rotation","publication_year":1989,"publication_date":"1989-07-01","ids":{"openalex":"https://openalex.org/W2021817815","doi":"https://doi.org/10.2134/jpa1989.0273","mag":"2021817815"},"language":"en","primary_location":{"id":"doi:10.2134/jpa1989.0273","doi":"https://doi.org/10.2134/jpa1989.0273","is_oa":false,"landing_page_url":"https://doi.org/10.2134/jpa1989.0273","pdf_url":null,"source":{"id":"https://openalex.org/S125600968","display_name":"jpa","issn_l":"0890-8524","issn":["0890-8524","2689-4114"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"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":"Journal of Production Agriculture","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/A5079296340","display_name":"Hugh J. Brown","orcid":"https://orcid.org/0000-0002-7820-5458","observed_orcids":["https://orcid.org/0000-0002-7820-5458"]},"institutions":[{"id":"https://openalex.org/I173911158","display_name":"Iowa State University","ror":"https://ror.org/04rswrd78","country_code":"US","type":"education","lineage":["https://openalex.org/I173911158"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"H. J. Brown","raw_affiliation_strings":["Dep. of Agronomy; Iowa State Univ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dep. of Agronomy; Iowa State Univ","institution_ids":["https://openalex.org/I173911158"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026914107","display_name":"Richard M. Cruse","orcid":"https://orcid.org/0000-0002-8995-3064","observed_orcids":["https://orcid.org/0000-0002-8995-3064"]},"institutions":[{"id":"https://openalex.org/I173911158","display_name":"Iowa State University","ror":"https://ror.org/04rswrd78","country_code":"US","type":"education","lineage":["https://openalex.org/I173911158"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"R. M. Cruse","raw_affiliation_strings":["Dep. of Agronomy; Iowa State Univ"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dep. of Agronomy; Iowa State Univ","institution_ids":["https://openalex.org/I173911158"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5113858991","display_name":"Tom S. Colvin","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1312222531","display_name":"Agricultural Research Service","ror":"https://ror.org/02d2m2044","country_code":"US","type":"government","lineage":["https://openalex.org/I1312222531","https://openalex.org/I1336096307"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"T. S. Colvin","raw_affiliation_strings":["USDA-ARS; Ames IA 50011"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"USDA-ARS; Ames IA 50011","institution_ids":["https://openalex.org/I1312222531"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5026914107"],"corresponding_institution_ids":["https://openalex.org/I173911158"],"apc_list":null,"apc_paid":null,"fwci":8.9471,"has_fulltext":false,"cited_by_count":62,"citation_normalized_percentile":{"value":0.97921892,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"2","issue":"3","first_page":"273","last_page":"279"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12792","display_name":"Soil Management and Crop Yield","score":0.9980000257492065,"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"}},"topics":[{"id":"https://openalex.org/T12792","display_name":"Soil Management and Crop Yield","score":0.9980000257492065,"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":0.0013000000035390258,"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/T12201","display_name":"Agricultural Engineering and Mechanization","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/tillage-systems","display_name":"tillage systems","score":0.9739999771118164},{"id":"https://openalex.org/keywords/no-tillage","display_name":"no-tillage","score":0.9449999928474426},{"id":"https://openalex.org/keywords/reduced-tillage","display_name":"reduced tillage","score":0.9990000128746033},{"id":"https://openalex.org/keywords/conventional-tillage","display_name":"conventional tillage","score":0.996999979019165},{"id":"https://openalex.org/keywords/corn-soybean-rotation","display_name":"corn-soybean rotation","score":0.847000002861023},{"id":"https://openalex.org/keywords/crop-residue-cover","display_name":"crop residue cover","score":0.7289999723434448},{"id":"https://openalex.org/keywords/maize-yield","display_name":"maize yield","score":0.796999990940094},{"id":"https://openalex.org/keywords/soybean-yield","display_name":"soybean yield","score":1.0},{"id":"https://openalex.org/keywords/production-costs","display_name":"production costs","score":0.8529999852180481},{"id":"https://openalex.org/keywords/pesticide-costs","display_name":"pesticide costs","score":0.753000020980835},{"id":"https://openalex.org/keywords/machine-operation","display_name":"machine operation","score":0.6669999957084656},{"id":"https://openalex.org/keywords/conservation-tillage","display_name":"conservation tillage","score":0.515999972820282}],"concepts":[{"id":"https://openalex.org/C16397148","wikidata":"https://www.wikidata.org/wiki/Q878333","display_name":"Tillage","level":2,"score":0.8998852372169495},{"id":"https://openalex.org/C168741863","wikidata":"https://www.wikidata.org/wiki/Q777671","display_name":"Sowing","level":2,"score":0.7150403261184692},{"id":"https://openalex.org/C180429540","wikidata":"https://www.wikidata.org/wiki/Q11464","display_name":"Plough","level":2,"score":0.7085785865783691},{"id":"https://openalex.org/C48508581","wikidata":"https://www.wikidata.org/wiki/Q4675074","display_name":"Acre","level":2,"score":0.6736610531806946},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.6167029738426208},{"id":"https://openalex.org/C2780696901","wikidata":"https://www.wikidata.org/wiki/Q5166322","display_name":"Conventional tillage","level":3,"score":0.5922714471817017},{"id":"https://openalex.org/C175760724","wikidata":"https://www.wikidata.org/wiki/Q191258","display_name":"Crop rotation","level":3,"score":0.5636214017868042},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5059453845024109},{"id":"https://openalex.org/C116370137","wikidata":"https://www.wikidata.org/wiki/Q1227672","display_name":"No-till farming","level":4,"score":0.4720742702484131},{"id":"https://openalex.org/C137580998","wikidata":"https://www.wikidata.org/wiki/Q235352","display_name":"Crop","level":2,"score":0.4533131420612335},{"id":"https://openalex.org/C183889291","wikidata":"https://www.wikidata.org/wiki/Q5187955","display_name":"Crop residue","level":3,"score":0.44542989134788513},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.2662810683250427},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.1464373767375946},{"id":"https://openalex.org/C159750122","wikidata":"https://www.wikidata.org/wiki/Q96621023","display_name":"Soil water","level":2,"score":0.11099618673324585},{"id":"https://openalex.org/C38774213","wikidata":"https://www.wikidata.org/wiki/Q202080","display_name":"Soil fertility","level":3,"score":0.10356828570365906},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2134/jpa1989.0273","doi":"https://doi.org/10.2134/jpa1989.0273","is_oa":false,"landing_page_url":"https://doi.org/10.2134/jpa1989.0273","pdf_url":null,"source":{"id":"https://openalex.org/S125600968","display_name":"jpa","issn_l":"0890-8524","issn":["0890-8524","2689-4114"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"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":"Journal of Production Agriculture","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2","score":1.0}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W614705265","https://openalex.org/W1763904405","https://openalex.org/W1884021732","https://openalex.org/W1900372983","https://openalex.org/W1981111199","https://openalex.org/W1994245915","https://openalex.org/W1998337450","https://openalex.org/W2037323715","https://openalex.org/W2047412953","https://openalex.org/W2063127693","https://openalex.org/W2066802438","https://openalex.org/W2070344090","https://openalex.org/W2076103608","https://openalex.org/W2080927776","https://openalex.org/W2307873470","https://openalex.org/W2329156321","https://openalex.org/W2336467436","https://openalex.org/W2385864473","https://openalex.org/W2917449194"],"related_works":["https://openalex.org/W1967545533","https://openalex.org/W2036747257","https://openalex.org/W2187235218","https://openalex.org/W2078839780","https://openalex.org/W2293294425","https://openalex.org/W2113268389","https://openalex.org/W2808351554","https://openalex.org/W1990998051","https://openalex.org/W6929527624","https://openalex.org/W2076103608"],"abstract_inverted_index":{"Corn":[0],"(":[1],"Zea":[2],"mays":[3],"L.)":[4],"and":[5,13,15,59,62,89,94,101,159,185,195,218,238,265],"soybean":[6,146,246],"[":[7],"Glycine":[8],"max":[9],"(L.)":[10],"Merr.]":[11],"growth":[12],"yields,":[14],"production":[16,213,230,247],"costs":[17,201],"were":[18,108,117,130,148],"evaluated":[19],"for":[20,57,91,106,120,126,136,183,188,216,220,261],"three":[21,36],"tillage":[22,37,51,64,111,277],"systems":[23,38],"on":[24],"a":[25],"432\u2010acre":[26],"site":[27],"in":[28,278],"southeast":[29],"Iowa":[30],"from":[31],"1980":[32],"to":[33,234,251],"1987.":[34],"The":[35,206,222,255],"were:":[39],"no\u2010till":[40],"(NT),":[41],"slot":[42],"planting":[43,85],"into":[44],"the":[45,77,79,155,173,210,226,239,243,262,268,279],"previous":[46],"year's":[47],"crop":[48,99],"residue;":[49],"reduced":[50],"(RT),":[52],"disking":[53],"and/or":[54],"field":[55],"cultivating":[56,71],"primary":[58,158],"secondary":[60,73,160],"tillage;":[61],"conventional":[63],"(CT),":[65],"fall":[66],"moldboard":[67],"plowing":[68],"with":[69,180,267],"disking/field":[70],"as":[72],"tillage.":[74,153],"Averaged":[75,171],"over":[76,172],"rotation,":[78,174],"percentage":[80],"residue":[81],"cover":[82],"remaining":[83],"after":[84],"was":[86],"72,":[87],"26,":[88],"3%":[90],"NT,":[92],"RT,":[93],"CT,":[95],"respectively.":[96],"Date":[97],"of":[98,103,157,258,276],"emergence":[100],"date":[102],"75%":[104],"silking":[105],"corn":[107,114,124,217,229],"similar":[109],"among":[110],"systems,":[112],"but":[113,198],"plant":[115],"densities":[116],"generally":[118],"lower":[119,131,192],"NT.":[121],"Eight\u2010year":[122,144],"average":[123,145],"yields":[125,147],"NT":[127,162,175,190,240],"(138":[128],"bu/acre)":[129,139],"(\u03b1":[132],"=":[133],"0.01)":[134],"than":[135,167,202],"RT":[137,168,184,203,207,263],"(146":[138],"or":[140,169,204],"CT":[141,223],"(144":[142],"bu/acre).":[143],"not":[149],"significantly":[150],"affected":[151],"by":[152],"With":[154],"elimination":[156],"tillage,":[161],"required":[163],"fewer":[164],"machine":[165,196,236],"operations":[166],"CT.":[170,189,205],"had":[176,191,209,225,242],"5.4":[177],"operations/year":[178,182,187],"compared":[179],"7.3":[181],"8.2":[186],"fuel,":[193],"labor,":[194],"costs,":[197,237],"higher":[199,252],"pesticide":[200,253],"system":[208,224,241,264],"lowest":[211],"annual":[212,228,245],"cost":[214,231,248],"($120.60/acre":[215],"$102.77/acre":[219],"soybeans).":[221],"highest":[227,244],"($132.32/acre)":[232],"due":[233,250],"greater":[235,259],"($111.67/acre)":[249],"costs.":[254],"combined":[256],"incentives":[257],"profitability":[260],"compliance":[266],"1985":[269],"Food":[270],"Security":[271],"Act":[272],"may":[273],"favor":[274],"reduction":[275],"future.":[280]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":5},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":2}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}