{"id":"https://openalex.org/W2016608406","doi":"https://doi.org/10.2134/agronj1999.914650x","title":"Soil Nitrogen Amendment Effects on Nitrogen Uptake and Grain Yield of Maize","display_name":"Soil Nitrogen Amendment Effects on Nitrogen Uptake and Grain Yield of Maize","publication_year":1999,"publication_date":"1999-07-01","ids":{"openalex":"https://openalex.org/W2016608406","doi":"https://doi.org/10.2134/agronj1999.914650x","mag":"2016608406"},"language":"en","primary_location":{"id":"doi:10.2134/agronj1999.914650x","doi":"https://doi.org/10.2134/agronj1999.914650x","is_oa":false,"landing_page_url":"https://doi.org/10.2134/agronj1999.914650x","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/A5007972095","display_name":"B. L.","orcid":"https://orcid.org/0000-0002-8328-9481","observed_orcids":["https://orcid.org/0000-0002-8328-9481"]},"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"]},{"id":"https://openalex.org/I4390039273","display_name":"Ottawa Research and Development Centre","ror":"https://ror.org/03fx3ra47","country_code":"CA","type":"facility","lineage":["https://openalex.org/I1331897569","https://openalex.org/I2802286613","https://openalex.org/I4390039273"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"B. L. Ma","raw_affiliation_strings":["Eastern Cereal and Oilseed Res. Ctr. (ECORC) Agric. & Agri\u2010Food Canada, Research Branch Central Exp. Farm Ottawa ON Canada K1A 0C6"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Eastern Cereal and Oilseed Res. Ctr. (ECORC) Agric. & Agri\u2010Food Canada, Research Branch Central Exp. Farm Ottawa ON Canada K1A 0C6","institution_ids":["https://openalex.org/I1331897569","https://openalex.org/I4390039273"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006230364","display_name":"L. M. Dwyer","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"]},{"id":"https://openalex.org/I4390039273","display_name":"Ottawa Research and Development Centre","ror":"https://ror.org/03fx3ra47","country_code":"CA","type":"facility","lineage":["https://openalex.org/I1331897569","https://openalex.org/I2802286613","https://openalex.org/I4390039273"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Lianne M. Dwyer","raw_affiliation_strings":["Eastern Cereal and Oilseed Res. Ctr. (ECORC) Agric. & Agri\u2010Food Canada, Research Branch Central Exp. Farm Ottawa ON Canada K1A 0C6"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Eastern Cereal and Oilseed Res. Ctr. (ECORC) Agric. & Agri\u2010Food Canada, Research Branch Central Exp. Farm Ottawa ON Canada K1A 0C6","institution_ids":["https://openalex.org/I1331897569","https://openalex.org/I4390039273"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5066131954","display_name":"Edward G. Gregorich","orcid":"https://orcid.org/0000-0003-3652-2946","observed_orcids":["https://orcid.org/0000-0003-3652-2946"]},"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"]},{"id":"https://openalex.org/I4390039273","display_name":"Ottawa Research and Development Centre","ror":"https://ror.org/03fx3ra47","country_code":"CA","type":"facility","lineage":["https://openalex.org/I1331897569","https://openalex.org/I2802286613","https://openalex.org/I4390039273"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Edward G. Gregorich","raw_affiliation_strings":["Eastern Cereal and Oilseed Res. Ctr. (ECORC) Agric. & Agri\u2010Food Canada, Research Branch Central Exp. Farm Ottawa ON Canada K1A 0C6"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Eastern Cereal and Oilseed Res. Ctr. (ECORC) Agric. & Agri\u2010Food Canada, Research Branch Central Exp. Farm Ottawa ON Canada K1A 0C6","institution_ids":["https://openalex.org/I1331897569","https://openalex.org/I4390039273"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5007972095"],"corresponding_institution_ids":["https://openalex.org/I1331897569","https://openalex.org/I4390039273"],"apc_list":{"value":1800,"currency":"USD","value_usd":1800},"apc_paid":null,"fwci":6.7069,"has_fulltext":false,"cited_by_count":135,"citation_normalized_percentile":{"value":0.95907024,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":87,"max":99},"biblio":{"volume":"91","issue":"4","first_page":"650","last_page":"656"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12310","display_name":"Crop Yield and Soil Fertility","score":0.6557999849319458,"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/T12310","display_name":"Crop Yield and Soil Fertility","score":0.6557999849319458,"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/T12294","display_name":"Agricultural Science and Fertilization","score":0.3384000062942505,"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/T10004","display_name":"Soil Carbon and Nitrogen Dynamics","score":0.002099999925121665,"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/maize","display_name":"maize","score":0.9620000123977661},{"id":"https://openalex.org/keywords/nitrogen-use-efficiency","display_name":"nitrogen use efficiency","score":0.777999997138977},{"id":"https://openalex.org/keywords/nitrogen-uptake","display_name":"nitrogen uptake","score":0.953000009059906},{"id":"https://openalex.org/keywords/grain-yield","display_name":"grain yield","score":0.9850000143051147},{"id":"https://openalex.org/keywords/dairy-manure","display_name":"dairy manure","score":0.949999988079071},{"id":"https://openalex.org/keywords/ammonium-nitrate-fertilizer","display_name":"ammonium nitrate fertilizer","score":0.906000018119812},{"id":"https://openalex.org/keywords/maize-hybrids","display_name":"maize hybrids","score":0.5889999866485596},{"id":"https://openalex.org/keywords/continuous-maize","display_name":"continuous maize","score":0.6729999780654907},{"id":"https://openalex.org/keywords/nitrogen-recovery","display_name":"nitrogen recovery","score":0.6299999952316284}],"concepts":[{"id":"https://openalex.org/C113578266","wikidata":"https://www.wikidata.org/wiki/Q1131303","display_name":"Loam","level":3,"score":0.782263457775116},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.7731117010116577},{"id":"https://openalex.org/C2779184190","wikidata":"https://www.wikidata.org/wiki/Q1269627","display_name":"Amendment","level":2,"score":0.7500097155570984},{"id":"https://openalex.org/C38304854","wikidata":"https://www.wikidata.org/wiki/Q185716","display_name":"Manure","level":2,"score":0.6697549223899841},{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.5246862769126892},{"id":"https://openalex.org/C21008047","wikidata":"https://www.wikidata.org/wiki/Q2485878","display_name":"Gleysol","level":3,"score":0.5207028985023499},{"id":"https://openalex.org/C2780560099","wikidata":"https://www.wikidata.org/wiki/Q83323","display_name":"Fertilizer","level":2,"score":0.5201200246810913},{"id":"https://openalex.org/C75639521","wikidata":"https://www.wikidata.org/wiki/Q1283519","display_name":"Field experiment","level":2,"score":0.43575379252433777},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.4219951331615448},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.4063631296157837},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.34263941645622253},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.326768696308136},{"id":"https://openalex.org/C140793950","wikidata":"https://www.wikidata.org/wiki/Q168091","display_name":"Animal science","level":1,"score":0.3258736729621887},{"id":"https://openalex.org/C159750122","wikidata":"https://www.wikidata.org/wiki/Q96621023","display_name":"Soil water","level":2,"score":0.30267462134361267},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.1780378222465515},{"id":"https://openalex.org/C159390177","wikidata":"https://www.wikidata.org/wiki/Q9161265","display_name":"Soil science","level":1,"score":0.06982976198196411},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.06003251671791077},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"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/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2134/agronj1999.914650x","doi":"https://doi.org/10.2134/agronj1999.914650x","is_oa":false,"landing_page_url":"https://doi.org/10.2134/agronj1999.914650x","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":[{"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2","score":0.991100013256073}],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320334595","display_name":"Agriculture and Agri-Food Canada","ror":"https://ror.org/051dzs374"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W172624418","https://openalex.org/W174102977","https://openalex.org/W1991718252","https://openalex.org/W1995998198","https://openalex.org/W2015962842","https://openalex.org/W2026125218","https://openalex.org/W2037954787","https://openalex.org/W2042827723","https://openalex.org/W2054274328","https://openalex.org/W2063767905","https://openalex.org/W2080804660","https://openalex.org/W2081234473","https://openalex.org/W2340014748","https://openalex.org/W2797801359","https://openalex.org/W3137251136"],"related_works":["https://openalex.org/W4400335372","https://openalex.org/W2951538910","https://openalex.org/W1995998198","https://openalex.org/W2184148538","https://openalex.org/W2078188787","https://openalex.org/W2000350326","https://openalex.org/W2118051952","https://openalex.org/W174102977","https://openalex.org/W2617995578","https://openalex.org/W2108343098"],"abstract_inverted_index":{"Efficient":[0],"use":[1,93],"of":[2,49,56,116,123,125,134,155,163,169,199,224,258],"soil":[3,22,36],"N":[4,51,62,72,92,99,103,107,148,166,187,194,214,253,266,279],"amendments":[5,63,108],"in":[6,91,185,202],"maize":[7,58],"(Zea":[8],"mays":[9],"L.)":[10],"production":[11],"is":[12],"necessary":[13],"to":[14,20,88,146,190,240],"maximize":[15],"producer's":[16],"economic":[17],"returns":[18],"and":[19,23,53,69,74,76,82,96,102,118,167,176,204,222,255],"maintain":[21],"water":[24],"quality.":[25],"A":[26],"5\u2010year":[27],"field":[28],"experiment":[29],"was":[30,144,272],"conducted":[31],"on":[32,263],"a":[33,126],"Brandon":[34],"loam":[35],"(fine":[37],"loamy,":[38],"mixed,":[39],"mesic":[40],"Typic":[41],"Endoaquoll)":[42],"(Orthic":[43],"Humic":[44],"Gleysol)":[45],"with":[46,174,227],"the":[47,110,153,156,170,191,211,218,225,246,276],"objective":[48],"measuring":[50],"uptake":[52,100,188,254],"grain":[54,111,237,256],"yield":[55,112,257],"two":[57],"hybrids":[59],"under":[60,230],"different":[61],"[no":[64],"amendment,":[65],"NH4NO3":[66],"at":[67,80],"100":[68,83],"200":[70,192,212,277],"kg":[71,193,213,278],"ha\u22121,":[73],"stockpiled":[75],"rotted":[77],"dairy":[78],"manure":[79,171,200,234,250,270],"50":[81],"Mg":[84],"ha\u22121":[85,195,215,280],"(wet":[86],"wt.)]":[87],"determine":[89],"differences":[90],"efficiency":[94,101],"(NUE)":[95],"its":[97],"components,":[98],"utilization":[104],"efficiency.":[105],"The":[106,140,260],"increased":[109,252],"(by":[113,120],"an":[114,121,135],"average":[115,122],"20%)":[117],"NUE":[119],"17.5%)":[124],"modern":[127],"hybrid":[128,137],"(Pioneer":[129],"\u20183902\u2019)":[130],"more":[131],"than":[132,210,245,274],"that":[133,143],"old":[136],"(\u2018Pride":[138],"5\u2019).":[139],"difference":[141],"method":[142],"used":[145],"estimate":[147],"recovery":[149],"indicated":[150],"that,":[151],"over":[152],"course":[154],"study,":[157],"Pioneer":[158],"3902":[159],"took":[160],"up":[161],"48%":[162],"inorganic":[164],"fertilizer":[165,247],"20%":[168],"N,":[172],"compared":[173],"42":[175],"16%,":[177],"respectively,":[178],"for":[179,268,275],"Pride":[180],"5.":[181],"Manure":[182],"application":[183,229,251],"resulted":[184],"total":[186],"comparable":[189],"treatment.":[196,216,248,281],"Grain":[197],"yields":[198,238],"treatments":[201,235,271],"1993":[203],"1994":[205],"were":[206],"generally":[207],"lower":[208],"(5\u201315%)":[209],"During":[217],"latter":[219],"periods":[220],"(1995":[221],"1996)":[223],"study":[226],"repeated":[228],"continuous":[231],"maize,":[232],"all":[233,269],"produced":[236],"equal":[239],"or":[241],"slightly":[242],"greater":[243,273],"(6\u201313%)":[244],"Dairy":[249],"maize.":[259],"NUE,":[261],"based":[262],"added":[264],"mineral":[265],"levels,":[267]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":6},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":6},{"year":2014,"cited_by_count":11},{"year":2013,"cited_by_count":6},{"year":2012,"cited_by_count":12}],"updated_date":"2026-11-10T11:39:43.021295","created_date":"2016-06-24T00:00:00"}
