{"id":"https://openalex.org/W2014990671","doi":"https://doi.org/10.2134/jpa1994.0465","title":"Long Term Tillage Effects on Grain Yield and Soil Properties in a Soybean/Grain Sorghum Rotation","display_name":"Long Term Tillage Effects on Grain Yield and Soil Properties in a Soybean/Grain Sorghum Rotation","publication_year":1994,"publication_date":"1994-10-01","ids":{"openalex":"https://openalex.org/W2014990671","doi":"https://doi.org/10.2134/jpa1994.0465","mag":"2014990671"},"language":"en","primary_location":{"id":"doi:10.2134/jpa1994.0465","doi":"https://doi.org/10.2134/jpa1994.0465","is_oa":false,"landing_page_url":"https://doi.org/10.2134/jpa1994.0465","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/A5111881932","display_name":"Elbert C. Dickey","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I114395901","display_name":"University of Nebraska\u2013Lincoln","ror":"https://ror.org/043mer456","country_code":"US","type":"education","lineage":["https://openalex.org/I114395901"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Elbert C. Dickey","raw_affiliation_strings":["Biological Systems Engineering Dep., L.W. Chase Hall; University of Nebraska; Lincoln NE 68583-0726"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Biological Systems Engineering Dep., L.W. Chase Hall; University of Nebraska; Lincoln NE 68583-0726","institution_ids":["https://openalex.org/I114395901"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070056582","display_name":"Paul J. Jasa","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I114395901","display_name":"University of Nebraska\u2013Lincoln","ror":"https://ror.org/043mer456","country_code":"US","type":"education","lineage":["https://openalex.org/I114395901"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Paul J. Jasa","raw_affiliation_strings":["Biological Systems Engineering Dep., L.W. Chase Hall; University of Nebraska; Lincoln NE 68583-0726"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Biological Systems Engineering Dep., L.W. Chase Hall; University of Nebraska; Lincoln NE 68583-0726","institution_ids":["https://openalex.org/I114395901"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5072188463","display_name":"Robert D. Grisso","orcid":"https://orcid.org/0000-0002-6789-3558","observed_orcids":["https://orcid.org/0000-0002-6789-3558"]},"institutions":[{"id":"https://openalex.org/I114395901","display_name":"University of Nebraska\u2013Lincoln","ror":"https://ror.org/043mer456","country_code":"US","type":"education","lineage":["https://openalex.org/I114395901"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Robert D. Grisso","raw_affiliation_strings":["Biological Systems Engineering Dep., L.W. Chase Hall; University of Nebraska; Lincoln NE 68583-0726"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Biological Systems Engineering Dep., L.W. Chase Hall; University of Nebraska; Lincoln NE 68583-0726","institution_ids":["https://openalex.org/I114395901"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5072188463"],"corresponding_institution_ids":["https://openalex.org/I114395901"],"apc_list":null,"apc_paid":null,"fwci":3.3182,"has_fulltext":false,"cited_by_count":42,"citation_normalized_percentile":{"value":0.9067029,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"7","issue":"4","first_page":"465","last_page":"470"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12792","display_name":"Soil Management and Crop Yield","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T12792","display_name":"Soil Management and Crop Yield","score":1.0,"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"}},{"id":"https://openalex.org/T10889","display_name":"Soil erosion and sediment transport","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"}},{"id":"https://openalex.org/T12310","display_name":"Crop Yield and Soil Fertility","score":0.0,"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/no-tillage","display_name":"no-tillage","score":0.8759999871253967},{"id":"https://openalex.org/keywords/conservation-tillage","display_name":"conservation tillage","score":0.9729999899864197},{"id":"https://openalex.org/keywords/soybean","display_name":"soybean","score":0.8949999809265137},{"id":"https://openalex.org/keywords/grain-sorghum","display_name":"grain sorghum","score":1.0},{"id":"https://openalex.org/keywords/crop-rotation","display_name":"crop rotation","score":0.8100000023841858},{"id":"https://openalex.org/keywords/grain-yield","display_name":"grain yield","score":0.8600000143051147},{"id":"https://openalex.org/keywords/soil-organic-matter","display_name":"soil organic matter","score":0.9810000061988831},{"id":"https://openalex.org/keywords/soil-penetration-resistance","display_name":"soil penetration resistance","score":0.8190000057220459},{"id":"https://openalex.org/keywords/crop-residue-cover","display_name":"crop residue cover","score":0.8529999852180481},{"id":"https://openalex.org/keywords/chisel-tillage","display_name":"chisel tillage","score":0.6930000185966492},{"id":"https://openalex.org/keywords/plow-tillage","display_name":"plow tillage","score":0.7200000286102295},{"id":"https://openalex.org/keywords/disk-tillage","display_name":"disc tillage","score":0.781000018119812},{"id":"https://openalex.org/keywords/planting-systems","display_name":"planting systems","score":0.5370000004768372},{"id":"https://openalex.org/keywords/long-term-tillage-effects","display_name":"long-term tillage effects","score":0.8220000267028809}],"concepts":[{"id":"https://openalex.org/C2778157034","wikidata":"https://www.wikidata.org/wiki/Q12111","display_name":"Sorghum","level":2,"score":0.8844934701919556},{"id":"https://openalex.org/C16397148","wikidata":"https://www.wikidata.org/wiki/Q878333","display_name":"Tillage","level":2,"score":0.7852003574371338},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.7187556028366089},{"id":"https://openalex.org/C175760724","wikidata":"https://www.wikidata.org/wiki/Q191258","display_name":"Crop rotation","level":3,"score":0.6289646029472351},{"id":"https://openalex.org/C2992211155","wikidata":"https://www.wikidata.org/wiki/Q889514","display_name":"Grain yield","level":2,"score":0.5796502232551575},{"id":"https://openalex.org/C61797465","wikidata":"https://www.wikidata.org/wiki/Q1188986","display_name":"Term (time)","level":2,"score":0.4950477182865143},{"id":"https://openalex.org/C116370137","wikidata":"https://www.wikidata.org/wiki/Q1227672","display_name":"No-till farming","level":4,"score":0.4323646128177643},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.36573517322540283},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.27455592155456543},{"id":"https://openalex.org/C38774213","wikidata":"https://www.wikidata.org/wiki/Q202080","display_name":"Soil fertility","level":3,"score":0.24162831902503967},{"id":"https://openalex.org/C159750122","wikidata":"https://www.wikidata.org/wiki/Q96621023","display_name":"Soil water","level":2,"score":0.1982596516609192},{"id":"https://openalex.org/C159390177","wikidata":"https://www.wikidata.org/wiki/Q9161265","display_name":"Soil science","level":1,"score":0.1684507131576538},{"id":"https://openalex.org/C137580998","wikidata":"https://www.wikidata.org/wiki/Q235352","display_name":"Crop","level":2,"score":0.12509718537330627},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1115942895412445},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.2134/jpa1994.0465","doi":"https://doi.org/10.2134/jpa1994.0465","is_oa":false,"landing_page_url":"https://doi.org/10.2134/jpa1994.0465","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"},{"id":"pmh:oai:digitalcommons.unl.edu:biosysengfacpub-1261","doi":null,"is_oa":false,"landing_page_url":"http://digitalcommons.unl.edu/biosysengfacpub/260","pdf_url":null,"source":{"id":"https://openalex.org/S4306400577","display_name":"Lincoln (University of Nebraska)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I114395901","host_organization_name":"University of Nebraska\u2013Lincoln","host_organization_lineage":["https://openalex.org/I114395901"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Department of Biological Systems Engineering: Papers and Publications","raw_type":"text"}],"best_oa_location":null,"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":0.7605999708175659,"display_name":"Life on land"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W121174887","https://openalex.org/W352650776","https://openalex.org/W1523606761","https://openalex.org/W1986262827","https://openalex.org/W1987273459","https://openalex.org/W1991337102","https://openalex.org/W2007306135","https://openalex.org/W2025750910","https://openalex.org/W2039998009","https://openalex.org/W2045484778","https://openalex.org/W2059115445","https://openalex.org/W2066189638","https://openalex.org/W2076103608","https://openalex.org/W2077598069","https://openalex.org/W2078839780","https://openalex.org/W2080927776","https://openalex.org/W2089504712","https://openalex.org/W2166765276","https://openalex.org/W3194169483"],"related_works":["https://openalex.org/W1999919606","https://openalex.org/W2094853744","https://openalex.org/W2009218799","https://openalex.org/W2056795230","https://openalex.org/W2011244352","https://openalex.org/W4205254121","https://openalex.org/W2616280343","https://openalex.org/W2038642803","https://openalex.org/W1990998051","https://openalex.org/W3021426472"],"abstract_inverted_index":{"In":[0,82,481,683],"Nebraska,":[1,482],"early":[2,18,335,497],"adopters":[3,379],"of":[4,86,120,133,170,193,288,294,297,343,362,380,414,442,549,611,679,778,781,805,1020,1026,1029,1122,1125],"conservation":[5,381,485,502],"tillage,":[6,382],"especially":[7,383],"those":[8,384],"using":[9,385],"no\u2010till":[10,72,158,171,206,308,325,349,386,581,807,827,855,881,883,899,910,940],"planting,":[11,387],"had":[12,217,277,388,809,951,1009],"some":[13],"concerns":[14,389,524],"regarding":[15,390],"planter":[16,391],"performance,":[17,392],"season":[19],"weed":[20,393],"control,":[21,394],"and":[22,28,44,54,64,80,145,208,246,255,267,300,322,337,350,368,395,401,418,424,434,456,467,477,487,507,516,543,554,568,574,588,619,630,670,698,705,712,714,751,757,763,785,839,867,882,921,942,976,985,997,1032,1039,1044,1131],"possible":[23,396],"yield":[24,134,141,154,164,179,191,314,397,651,792,824,852,896,1116],"reductions.":[25,398],"Selected":[26],"tillage":[27,63,144,254,266,299,374,400,415,466,486,490,503,527,551,567,629,697,750,784,984,996,1031,1038],"planting":[29,65,146,250,256,268,301,402,435,468,569,631,699,752,786,980,986,998,1005,1033,1040,1045],"systems":[30,66,257,269,333,403,436,491,570,700,753,987,999,1041],"were":[31,89,115,155,258,327,338,404,504,578,617,644,653,673,707,718,793,813,887,988],"used":[32,405,605,694,708,719,836,864],"long":[33,408],"term":[34,409],"to":[35,160,200,225,242,310,358,411,452,493,522,534,924,934,959,972],"evaluate":[36,412],"effects":[37,413],"on":[38,94,416,445,472,510,552,667,695,755],"soybean":[39,172,417,476,542,553,573,756,810,823],"[Glycine":[40],"max":[41],"(L.)":[42,49],"Merr.]":[43],"grain":[45,140,183,419,478,544,555,575,710,758,850,894],"sorghum":[46,420,479,556,576,711,759,851,895],"[Sorghum":[47],"bicolor":[48],"Moench]":[50],"yield,":[51,1128],"soil":[52,321,422,447,454,591,668,761],"properties,":[53,423,762],"residue":[55,271,280,289,352,425,444,672,764,1001,1012,1021],"cover":[56,272,426,441,765,1002],"in":[57,139,153,176,188,251,406,427,484,495,530,558,571,635,646,664,768,772,790,919,981],"a":[58,95,407,428,439,559,572,594,684,769],"nonirrigated":[59,429,560,770],"rotation.":[60,430,480],"The":[61,214,261,590,820,847,948,991],"six":[62],"selected":[67,253,783,983],"for":[68,128,165,182,203,210,249,315,319,525,541,614,701,709,720,734,937,944,979,1036,1117],"evaluation":[69],"were:":[70],"no\u2010till,":[71,580],"with":[73,157,582,884,911,928],"row\u2010crop":[74,185,583],"cultivation,":[75,584],"disk,":[76,78,585],"double":[77],"chisel,":[79,587],"plow.":[81,589],"1981,":[83],"two":[84],"sets":[85,610],"field":[87,601,642],"plots":[88],"established":[90],"near":[91,676],"Lincoln,":[92],"NE,":[93],"Sharpsburg":[96,595],"silty":[97,596],"clay":[98,597],"loam":[99],"(fine,":[100],"montmorillonitic,":[101],"mesic":[102],"Typic":[103],"Argiudolls)":[104],"so":[105],"that":[106,437,812],"both":[107,166,316,804],"crops":[108],"could":[109],"be":[110,201,935],"evaluated":[111],"each":[112,615,624,628,702],"year.":[113],"Measurements":[114],"not":[116,174,259,888,989],"taken":[117,654],"until":[118],"completion":[119],"one":[121,613,802],"crop":[122,443,473,671,791],"rotation":[123,561,577,771],"cycle.":[124],"After":[125,148,775],"this":[126],"cycle,":[127],"the":[129,143,162,204,211,223,229,233,240,252,265,278,291,298,304,312,320,331,356,363,446,459,496,547,607,647,677,680,687,782,806,816,826,834,843,854,862,871,877,880,893,898,909,938,945,957,963,970,982,995,1010,1023,1030,1037,1118],"first":[130],"3":[131],"yr":[132,293,342,660,777,1025,1121],"measurements,":[135],"no":[136,285,1017],"differences":[137,152,789],"occurred":[138],"among":[142,264,458,994],"systems.":[147,302,1034],"five":[149],"additional":[150],"years,":[151,336],"measured,":[156],"tending":[159],"have":[161,311,355,449,470,754],"greatest":[163,202,313,936],"crops.":[167,317],"Row\u2010crop":[168],"cultivation":[169,186,885,912],"did":[173],"result":[175],"any":[177],"measurable":[178],"differences,":[180],"but":[181,282,1014],"sorghum,":[184],"resulted":[187],"an":[189],"average":[190],"decrease":[192],"6":[194,903],"bu/acre.":[195],"Soil":[196,930],"organic":[197,931],"matter":[198,932],"tended":[199,309,933],"continuous":[205,295,344,779,939,1027],"system":[207,216,235,632,838,866,941,950,965,1046],"lowest":[209,943],"plow":[212,215,818,845,873,946,949,1062,1066],"system.":[213,819,846,874,947],"slightly":[218,237,952,967],"less":[219,953],"penetration":[220,954],"resistance":[221,955],"within":[222,239,623,627,956,969],"4\u2010":[224,958],"8\u2010in.":[226,960],"depth":[227],"than":[228,741,815,833,842,861,870,908],"other":[230,332,351,488,740],"treatments,":[231],"whereas,":[232,962],"double\u2010disk":[234,837,865,964],"was":[236,270,284,520,539,562,593,604,693,726,743,829,857,916,922,966,1000,1016],"greater":[238,366,814,832,841,860,869,968],"2\u2010":[241,971],"6\u2010in.":[243],"depth.":[244,974],"Draft":[245,975],"power":[247,977],"requirements":[248,978],"different":[260],"major":[262,992],"difference":[263,915,993],"remaining":[273,1003],"after":[274,340,661,1004],"planting.":[275],"No\u2010till":[276,1008,1048,1049],"most":[279,1011],"cover,":[281,1013],"there":[283,1015],"appreciable":[286,1018],"accumulation":[287,1019],"over":[290,655,1022],"10":[292,659,681,1024],"use":[296,780,1028],"For":[303,875],"last":[305,1119],"5":[306,341,776,1120],"yr,":[307,657],"Thus,":[318,346],"conditions":[323],"evaluated,":[324],"yields":[326,367,811,878],"as":[328,330],"good":[329],"during":[334],"better":[339],"use.":[345],"producers":[347],"adopting":[348],"management":[353],"practices":[354],"opportunity":[357],"enhance":[359],"profitability":[360],"because":[361],"same":[364,688],"or":[365,716,729,803],"reduced":[369,489,526,550],"production":[370,474,511,529,557],"costs":[371],"by":[372],"eliminating":[373],"operations.":[375],"Research":[376,499],"Question":[377,746],"Early":[378],"Six":[399,566],"study":[410,517],"yields,":[421,760],"Literature":[431],"Summary":[432],"Tillage":[433,1043,1130],"leave":[438],"protective":[440],"surface":[448],"been":[450],"shown":[451],"reduce":[453],"losses,":[455],"are":[457,633],"least":[460],"costly":[461],"erosion":[462],"control":[463],"practices.":[464],"Few":[465],"studies":[469],"reported":[471],"from":[475,825,853,879,897],"interest":[483],"began":[492],"increase":[494],"1980s.":[498],"results":[500],"concerning":[501],"often":[505],"conflicting":[506],"varied":[508],"depending":[509],"management,":[512],"rainfall,":[513],"geographic":[514],"location,":[515],"duration.":[518],"Information":[519],"available":[521,540],"address":[523],"corn":[528],"semi\u2010humid":[531],"areas":[532],"similar":[533],"Nebraska.":[535],"However,":[536,890],"limited":[537],"information":[538],"sorghum.":[545],"Therefore,":[546],"effect":[548,748],"evaluated.":[563,1042],"Study":[564],"Description":[565],"evaluated:":[579],"double\u2010disk,":[586],"type":[592],"loam.":[598],"Full":[599],"sized":[600],"equipment":[602],"(6\u2010row)":[603],"throughout":[606],"project.":[608],"Two":[609],"plots,":[612],"crop,":[616],"randomized":[618],"replicated":[620],"three":[621],"times":[622],"set.":[625],"Operations":[626,1035,1047],"listed":[634],"Table":[636],".":[637],"Unless":[638],"otherwise":[639],"noted,":[640],"all":[641,696],"operations":[643],"performed":[645],"spring.":[648],"This":[649,914],"study's":[650],"observations":[652],"8":[656],"ending":[658],"plot":[662],"establishment":[663],"1981.":[665],"Observations":[666],"properties":[669],"made":[674],"once":[675],"end":[678],"yr.":[682],"given":[685],"year,":[686],"preplant":[689],"applied":[690],"herbicide":[691,723,1078,1101],"program":[692],"crop.":[703],"Atrazine":[704],"Dual":[706,715],"Sencor":[713],"Prowl":[717],"soybean.":[721],"Total":[722],"application":[724],"rate":[725],"usually":[727],"at":[728],"below":[730],"suggested":[731],"label":[732],"rates":[733],"tilled":[735],"soils.":[736],"No":[737],"burndown":[738],"herbicide,":[739],"2,4\u2010D,":[742],"used.":[744],"Applied":[745],"What":[747],"do":[749],"when":[766],"grown":[767],"southeast":[773],"Nebraska?":[774],"systems,":[787],"several":[788],"measured":[794],"(Table":[795,1006],").":[796,1007],"From":[797],"1986":[798],"through":[799],"1990,":[800],"either":[801],"treatments":[808,886],"traditional":[817,844,872],"5\u2010yr":[821,848],"mean":[822,849,1127],"treatment":[828,856,900],"about":[830,858],"6%":[831,859],"commonly":[835,863],"11%":[840],"9%":[868],"soybean,":[876],"different.":[889,990],"since":[891],"1986,":[892],"has":[901],"averaged":[902],"bu/acre":[904],"higher":[905],"(about":[906],"4%)":[907],"treatment.":[913],"also":[917],"observed":[918],"1983":[920],"attributed":[923],"moisture":[925],"stress":[926],"associated":[927],"cultivation.":[929],"depth,":[961],"4\u2010in.":[973],"w/cultivation":[1050],"Disk":[1051,1085,1088],"Double\u2010Disk":[1052],"Chisel":[1053],"Plow":[1054],"Shred":[1055],"stalks":[1056],"(fall)":[1057],"X":[1058,1059,1063,1067,1071,1072,1073,1074,1075,1076,1079,1080,1081,1082,1083,1084,1086,1087,1089,1090,1091,1092,1094,1095,1096,1097,1098,1099,1102,1103,1104,1105,1106,1107,1110,1111,1112,1113,1114],"Fall":[1060,1064],"moldboard":[1061],"chisel":[1065],"Knife":[1068],"apply":[1069],"NH3":[1070],"Apply":[1077,1100],"Plant":[1093],"Crop":[1108],"cultivate":[1109],"Grain":[1115],"measurement.":[1123],"Percentage":[1124],"annual":[1126],"%":[1129],"<jats":[1132]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":3},{"year":2015,"cited_by_count":4},{"year":2013,"cited_by_count":1}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}