{"id":"https://openalex.org/W1985452700","doi":"https://doi.org/10.1002/jsfa.2740201005","title":"Effect of applying increasing levels of nitrogen to ryegrass: I.\u2014Composition of various nitrogenous fractions and free amino acids","display_name":"Effect of applying increasing levels of nitrogen to ryegrass: I.\u2014Composition of various nitrogenous fractions and free amino acids","publication_year":1969,"publication_date":"1969-10-01","ids":{"openalex":"https://openalex.org/W1985452700","doi":"https://doi.org/10.1002/jsfa.2740201005","mag":"1985452700"},"language":"en","primary_location":{"id":"doi:10.1002/jsfa.2740201005","doi":"https://doi.org/10.1002/jsfa.2740201005","is_oa":false,"landing_page_url":"https://doi.org/10.1002/jsfa.2740201005","pdf_url":null,"source":{"id":"https://openalex.org/S206298197","display_name":"Journal of the Science of Food and Agriculture","issn_l":"0022-5142","issn":["0022-5142","1097-0010"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","ki-jl-1","medline","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":"Journal of the Science of Food and 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":null,"display_name":"A. K. Goswami","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I130828816","display_name":"University of Leeds","ror":"https://ror.org/024mrxd33","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"A. K. Goswami","raw_affiliation_strings":["Department of Agriculture, University of Leeds"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agriculture, University of Leeds","institution_ids":["https://openalex.org/I130828816"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064967705","display_name":"James Stuart Willcox","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I130828816","display_name":"University of Leeds","ror":"https://ror.org/024mrxd33","country_code":"GB","type":"education","lineage":["https://openalex.org/I130828816"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"J. S. Willcox","raw_affiliation_strings":["Department of Agriculture, University of Leeds"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agriculture, University of Leeds","institution_ids":["https://openalex.org/I130828816"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I130828816"],"apc_list":{"value":4620,"currency":"USD","value_usd":4620},"apc_paid":null,"fwci":1.5593,"has_fulltext":false,"cited_by_count":33,"citation_normalized_percentile":{"value":0.78296639,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"20","issue":"10","first_page":"592","last_page":"595"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11247","display_name":"Plant nutrient uptake and metabolism","score":0.40380001068115234,"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/T11247","display_name":"Plant nutrient uptake and metabolism","score":0.40380001068115234,"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/T10098","display_name":"Ruminant Nutrition and Digestive Physiology","score":0.16140000522136688,"subfield":{"id":"https://openalex.org/subfields/1103","display_name":"Animal Science and Zoology"},"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":0.14980000257492065,"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/ryegrass","display_name":"ryegrass","score":0.8479999899864197},{"id":"https://openalex.org/keywords/nitrogen-fertilization","display_name":"nitrogen fertilization","score":0.8270000219345093},{"id":"https://openalex.org/keywords/nitrogen-fractions","display_name":"nitrogen fractions","score":0.6639999747276306},{"id":"https://openalex.org/keywords/free-amino-acids","display_name":"free amino acids","score":0.9269999861717224},{"id":"https://openalex.org/keywords/non-protein-nitrogen","display_name":"non-protein nitrogen","score":0.9449999928474426},{"id":"https://openalex.org/keywords/peptide-nitrogen","display_name":"peptide nitrogen","score":0.7379999756813049},{"id":"https://openalex.org/keywords/true-protein","display_name":"true protein","score":0.6000000238418579},{"id":"https://openalex.org/keywords/asparagine","display_name":"asparagine","score":0.9760000109672546},{"id":"https://openalex.org/keywords/glutamine","display_name":"glutamine","score":0.996999979019165},{"id":"https://openalex.org/keywords/dicarboxylic-amino-acids","display_name":"dicarboxylic amino acids","score":0.9729999899864197},{"id":"https://openalex.org/keywords/nitrate-nitrogen","display_name":"nitrate nitrogen","score":0.8489999771118164}],"concepts":[{"id":"https://openalex.org/C2775895851","wikidata":"https://www.wikidata.org/wiki/Q185906","display_name":"Asparagine","level":3,"score":0.9421704411506653},{"id":"https://openalex.org/C2779349466","wikidata":"https://www.wikidata.org/wiki/Q181619","display_name":"Glutamine","level":3,"score":0.7662181258201599},{"id":"https://openalex.org/C515207424","wikidata":"https://www.wikidata.org/wiki/Q8066","display_name":"Amino acid","level":2,"score":0.7560030817985535},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.7034652829170227},{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.6889599561691284},{"id":"https://openalex.org/C2779815552","wikidata":"https://www.wikidata.org/wiki/Q484583","display_name":"Proline","level":3,"score":0.6452386379241943},{"id":"https://openalex.org/C40231798","wikidata":"https://www.wikidata.org/wiki/Q1333743","display_name":"Composition (language)","level":2,"score":0.6353501677513123},{"id":"https://openalex.org/C2776384668","wikidata":"https://www.wikidata.org/wiki/Q182168","display_name":"Nitrate","level":2,"score":0.516130805015564},{"id":"https://openalex.org/C31903555","wikidata":"https://www.wikidata.org/wiki/Q1637030","display_name":"Food science","level":1,"score":0.4727381467819214},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.32000353932380676},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.23465970158576965},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1002/jsfa.2740201005","doi":"https://doi.org/10.1002/jsfa.2740201005","is_oa":false,"landing_page_url":"https://doi.org/10.1002/jsfa.2740201005","pdf_url":null,"source":{"id":"https://openalex.org/S206298197","display_name":"Journal of the Science of Food and Agriculture","issn_l":"0022-5142","issn":["0022-5142","1097-0010"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-1","ki-jl-1","medline","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":"Journal of the Science of Food and Agriculture","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.9208999872207642,"id":"https://metadata.un.org/sdg/2","display_name":"Zero hunger"}],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320320298","display_name":"University of Leeds","ror":"https://ror.org/024mrxd33"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W33814023","https://openalex.org/W109826420","https://openalex.org/W281394839","https://openalex.org/W1458871052","https://openalex.org/W1656077655","https://openalex.org/W1988083064","https://openalex.org/W1991198982","https://openalex.org/W1991916831","https://openalex.org/W1995032728","https://openalex.org/W2004545434","https://openalex.org/W2006566025","https://openalex.org/W2007496559","https://openalex.org/W2054570861","https://openalex.org/W2065377194","https://openalex.org/W2067338669","https://openalex.org/W2069467834","https://openalex.org/W2071754351","https://openalex.org/W2073564903","https://openalex.org/W2085764765","https://openalex.org/W2097829832","https://openalex.org/W2136701998","https://openalex.org/W2162041356","https://openalex.org/W2272191041","https://openalex.org/W2313156283","https://openalex.org/W2332002313","https://openalex.org/W2342151289"],"related_works":["https://openalex.org/W1974875568","https://openalex.org/W2068269960","https://openalex.org/W1981165620","https://openalex.org/W2001099339","https://openalex.org/W2069044615","https://openalex.org/W2145834230","https://openalex.org/W2295888914","https://openalex.org/W1902907025","https://openalex.org/W2019967549","https://openalex.org/W2081205440"],"abstract_inverted_index":{"Abstract":[0],"Heavy":[1,108],"application":[2],"of":[3,14,41,55,64,78,84,92,106,116,122,128,138],"fertiliser":[4],"N":[5,12,39,56,65,79,93,111],"caused":[6],"a":[7,21,70,89,103],"rise":[8,23],"in":[9,24,73],"the":[10,15,25,42,94,114,120,140],"non\u2010protein":[11],"content":[13,75,137],"plant":[16,43],"which":[17],"was":[18,44,49,69,86,102,131],"accompanied":[19,133],"by":[20,134],"sharp":[22],"free":[26],"amino":[27,96,141],"acid":[28],"N,":[29,82],"other":[30],"organic":[31],"nitrogenous":[32],"constituents":[33],"and":[34,57,99,118,130],"nitrate":[35],"N.":[36],"The":[37],"peptide":[38],"fraction":[40],"high":[45],"when":[46,61],"no":[47],"nitrogen":[48],"applied,":[50],"decreased":[51],"with":[52,76,110],"moderate":[53],"supply":[54,91],"rose":[58],"again":[59],"slightly":[60],"heavy":[62],"doses":[63],"were":[66],"applied.":[67],"There":[68],"steady":[71],"increase":[72,77,121],"true\u2010protein":[74],"application;":[80],"without":[81],"accumulation":[83],"asparagine":[85,117],"noted.":[87],"With":[88],"limited":[90],"dicarboxylic":[95],"acids":[97],"increased":[98,112,136],"also":[100,132],"there":[101],"considerable":[104],"reduction":[105],"asparagine.":[107],"fertilisation":[109],"considerably":[113],"contents":[115],"glutamine,":[119],"glutamine":[123],"being":[124],"greater":[125],"than":[126],"that":[127],"asparagine,":[129],"an":[135],"all":[139],"acids.":[142]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}