{"id":"https://openalex.org/W2026227828","doi":"https://doi.org/10.2134/agronj1971.00021962006300020024x","title":"Nitrogen Fertilization of Semiarid Grasslands: Plant Growth and Soil Mineral N Levels1","display_name":"Nitrogen Fertilization of Semiarid Grasslands: Plant Growth and Soil Mineral N Levels1","publication_year":1971,"publication_date":"1971-03-01","ids":{"openalex":"https://openalex.org/W2026227828","doi":"https://doi.org/10.2134/agronj1971.00021962006300020024x","mag":"2026227828"},"language":"en","primary_location":{"id":"doi:10.2134/agronj1971.00021962006300020024x","doi":"https://doi.org/10.2134/agronj1971.00021962006300020024x","is_oa":false,"landing_page_url":"https://doi.org/10.2134/agronj1971.00021962006300020024x","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/A5109335515","display_name":"James F. Power","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"J. F. Power","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5000613853","display_name":"J. Alessi","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I1336096307","display_name":"United States Department of Agriculture","ror":"https://ror.org/01na82s61","country_code":"US","type":"government","lineage":["https://openalex.org/I1336096307"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"J. Alessi","raw_affiliation_strings":["Research Soil Scientists, USDA, Mandan, North Dakota 58554"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research Soil Scientists, USDA, Mandan, North Dakota 58554","institution_ids":["https://openalex.org/I1336096307"]}]}],"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":4.1935,"has_fulltext":false,"cited_by_count":42,"citation_normalized_percentile":{"value":0.91052255,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":87,"max":95},"biblio":{"volume":"63","issue":"2","first_page":"277","last_page":"280"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10004","display_name":"Soil Carbon and Nitrogen Dynamics","score":0.9154999852180481,"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/T10004","display_name":"Soil Carbon and Nitrogen Dynamics","score":0.9154999852180481,"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/T12294","display_name":"Agricultural Science and Fertilization","score":0.0754999965429306,"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/T13591","display_name":"Pasture and Agricultural Systems","score":0.00279999990016222,"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/nitrogen-fertilization","display_name":"nitrogen fertilization","score":0.9929999709129333},{"id":"https://openalex.org/keywords/semiarid-grassland","display_name":"semi-arid grassland","score":0.9520000219345093},{"id":"https://openalex.org/keywords/native-grassland","display_name":"natural grassland","score":0.7960000038146973},{"id":"https://openalex.org/keywords/residual-nitrogen-effect","display_name":"residual nitrogen effect","score":0.7440000176429749},{"id":"https://openalex.org/keywords/soil-mineral-nitrogen","display_name":"soil mineral nitrogen","score":0.8309999704360962},{"id":"https://openalex.org/keywords/ammonium","display_name":"ammonium","score":0.6320000290870667},{"id":"https://openalex.org/keywords/nitrate","display_name":"nitrate","score":0.9959999918937683},{"id":"https://openalex.org/keywords/nitrogen-immobilization","display_name":"nitrogen immobilization","score":0.906000018119812},{"id":"https://openalex.org/keywords/nitrogen-mineralization","display_name":"nitrogen mineralization","score":0.753000020980835},{"id":"https://openalex.org/keywords/fertilizer-timing","display_name":"fertilizer application timing","score":0.6370000243186951},{"id":"https://openalex.org/keywords/oat","display_name":"oat","score":0.6710000038146973},{"id":"https://openalex.org/keywords/nitrogen-availability","display_name":"nitrogen availability","score":0.35100001096725464},{"id":"https://openalex.org/keywords/north-dakota","display_name":"North Dakota","score":0.503000020980835}],"concepts":[{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.7310887575149536},{"id":"https://openalex.org/C2780560099","wikidata":"https://www.wikidata.org/wiki/Q83323","display_name":"Fertilizer","level":2,"score":0.7293027639389038},{"id":"https://openalex.org/C111696902","wikidata":"https://www.wikidata.org/wiki/Q6864413","display_name":"Mineralization (soil science)","level":3,"score":0.6511204838752747},{"id":"https://openalex.org/C159750122","wikidata":"https://www.wikidata.org/wiki/Q96621023","display_name":"Soil water","level":2,"score":0.6236202120780945},{"id":"https://openalex.org/C88972607","wikidata":"https://www.wikidata.org/wiki/Q2666904","display_name":"Human fertilization","level":2,"score":0.6120778322219849},{"id":"https://openalex.org/C2775835988","wikidata":"https://www.wikidata.org/wiki/Q1006733","display_name":"Grassland","level":2,"score":0.6039420962333679},{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.5345109701156616},{"id":"https://openalex.org/C110872660","wikidata":"https://www.wikidata.org/wiki/Q37813","display_name":"Ecosystem","level":2,"score":0.5163668394088745},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.42191487550735474},{"id":"https://openalex.org/C140793950","wikidata":"https://www.wikidata.org/wiki/Q168091","display_name":"Animal science","level":1,"score":0.3960545063018799},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.3562406301498413},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.23515969514846802},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.16489431262016296},{"id":"https://openalex.org/C159390177","wikidata":"https://www.wikidata.org/wiki/Q9161265","display_name":"Soil science","level":1,"score":0.09406813979148865},{"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/agronj1971.00021962006300020024x","doi":"https://doi.org/10.2134/agronj1971.00021962006300020024x","is_oa":false,"landing_page_url":"https://doi.org/10.2134/agronj1971.00021962006300020024x","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":0.9208999872207642},{"display_name":"Life on land","id":"https://metadata.un.org/sdg/15","score":0.8518999814987183}],"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/W1964425663","https://openalex.org/W2581908135","https://openalex.org/W2014275911","https://openalex.org/W2021883376","https://openalex.org/W7172185488","https://openalex.org/W7162916313","https://openalex.org/W2076438352","https://openalex.org/W7096544803","https://openalex.org/W2169916613","https://openalex.org/W2020781015"],"abstract_inverted_index":{"Abstract":[0],"To":[1],"evaluate":[2],"the":[3,55,110,164,171,188,192,201,204,225],"fate":[4],"of":[5,39,46,51,62,72,101,163,173,187,191,206],"mineral":[6,153,196,208],"N":[7,13,64,88,116,147,156,176,183,209,213],"in":[8,19,32,37,109,118,150,185,195],"a":[9,207,218],"grassland":[10,18],"ecosystem,":[11],"fertilizer":[12,73],"was":[14,67,148],"applied":[15,184],"to":[16,25,123,179],"native":[17],"North":[20],"Dakota":[21],"at":[22,82],"rates":[23],"up":[24],"540":[26],"kg":[27],"N/ha":[28],"either":[29],"(a)":[30],"all":[31,161],"1":[33],"year,":[34],"(b)":[35],"one\u2010third":[36],"each":[38,45],"3":[40],"years,":[41],"or":[42,89],"(c)":[43],"one\u2010sixth":[44],"6":[47,56,96],"years.":[48],"Cumulative":[49],"production":[50,223],"grass":[52,168],"tops":[53],"for":[54,132,142],"years":[57,97],"increased":[58,60],"with":[59],"amounts":[61],"total":[63],"applied,":[65],"but":[66],"not":[68],"affected":[69],"by":[70,160,200],"timing":[71],"application.":[74],"With":[75],"continued":[76],"annual":[77],"fertilization,":[78],"responses":[79],"were":[80,93,138],"measureda":[81],"progressively":[83],"lower":[84],"rates.":[85],"At":[86],"270\u2010kg":[87],"more,":[90],"residual":[91,125,136,146,180],"effects":[92,137],"still":[94],"significant":[95],"later.":[98],"Dry":[99],"weights":[100],"three":[102],"oats":[103],"crops":[104],"grown":[105],"on":[106],"these":[107,124],"soils":[108,120],"growth":[111],"chamber":[112],"indicated":[113],"that":[114,212],"greater":[115],"availability":[117],"fertilized":[119],"contributed":[121],"appreciably":[122],"effects.":[126,181],"Soil":[127],"NH4+\u2010":[128],"and":[129,170,221],"NO3\u2010\u2010N":[130],"levels":[131],"many":[133],"treatments":[134],"exhibiting":[135],"no":[139],"higher":[140],"than":[141,152],"unfertilized":[143],"plots,":[144],"indicating":[145],"present":[149],"other":[151],"forms.":[154],"Fertilizer":[155,182],"is":[157,228],"probably":[158],"immobilized":[159,175],"components":[162],"soil\u2010grass":[165],"ecosystem":[166,193],"(especially":[167],"roots)":[169],"mineralization":[172],"this":[174],"may":[177],"contribute":[178],"excess":[186],"immobilizing":[189],"capacity":[190],"remains":[194],"form":[197],"until":[198],"required":[199],"grass.":[202],"Consequently,":[203],"presence":[205],"pool":[210],"indicates":[211],"has":[214],"been":[215],"eliminated":[216],"as":[217],"growthlimiting":[219],"factor":[220],"maximum":[222],"from":[224],"available":[226],"water":[227],"being":[229],"achieved.":[230]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}
