{"id":"https://openalex.org/W1991421334","doi":"https://doi.org/10.2478/v10032-009-0025-8","title":"Effect of Nitrogen Fertilization on the Yield and Quality of Field-grown Leaf Lettuce for Spring Harvest","display_name":"Effect of Nitrogen Fertilization on the Yield and Quality of Field-grown Leaf Lettuce for Spring Harvest","publication_year":2009,"publication_date":"2009-01-01","ids":{"openalex":"https://openalex.org/W1991421334","doi":"https://doi.org/10.2478/v10032-009-0025-8","mag":"1991421334"},"language":"en","primary_location":{"id":"doi:10.2478/v10032-009-0025-8","doi":"https://doi.org/10.2478/v10032-009-0025-8","is_oa":true,"landing_page_url":"https://doi.org/10.2478/v10032-009-0025-8","pdf_url":"https://www.sciendo.com/pdf/10.2478/v10032-009-0025-8","source":{"id":"https://openalex.org/S2764862703","display_name":"Journal of Fruit and Ornamental Plant Research","issn_l":"1231-0948","issn":["1231-0948","2300-8849"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310313990","host_organization_name":"De Gruyter","host_organization_lineage":["https://openalex.org/P4310313990"],"host_organization_lineage_names":["De Gruyter"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Fruit and Ornamental Plant Research","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://www.sciendo.com/pdf/10.2478/v10032-009-0025-8","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5014906591","display_name":"Piotr Chohura","orcid":"https://orcid.org/0000-0003-1400-5702","observed_orcids":["https://orcid.org/0000-0003-1400-5702"]},"institutions":[{"id":"https://openalex.org/I27912750","display_name":"Wroc\u0142aw University of Environmental and Life Sciences","ror":"https://ror.org/05cs8k179","country_code":"PL","type":"education","lineage":["https://openalex.org/I27912750"]}],"countries":["PL"],"is_corresponding":false,"raw_author_name":"Piotr Chohura","raw_affiliation_strings":["Wroc\u0142aw University of Life Sciences, Pl. Grunwaldzki 24a, 50-363 Wroc\u0142aw, Poland","Wroclaw University of Environmental and Life Sciences, pl.Grunwaldzki 24 a, 50-363 Wroclaw, Poland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Wroc\u0142aw University of Life Sciences, Pl. Grunwaldzki 24a, 50-363 Wroc\u0142aw, Poland","institution_ids":["https://openalex.org/I27912750"]},{"raw_affiliation_string":"Wroclaw University of Environmental and Life Sciences, pl.Grunwaldzki 24 a, 50-363 Wroclaw, Poland","institution_ids":["https://openalex.org/I27912750"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5042953047","display_name":"Eugeniusz Ko\u0142ota","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I27912750","display_name":"Wroc\u0142aw University of Environmental and Life Sciences","ror":"https://ror.org/05cs8k179","country_code":"PL","type":"education","lineage":["https://openalex.org/I27912750"]}],"countries":["PL"],"is_corresponding":false,"raw_author_name":"Eugeniusz Ko\u0142ota","raw_affiliation_strings":["Wroc\u0142aw University of Life Sciences, Pl. Grunwaldzki 24a, 50-363 Wroc\u0142aw, Poland","Wroclaw University of Environmental and Life Sciences, pl.Grunwaldzki 24 a, 50-363 Wroclaw, Poland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Wroc\u0142aw University of Life Sciences, Pl. Grunwaldzki 24a, 50-363 Wroc\u0142aw, Poland","institution_ids":["https://openalex.org/I27912750"]},{"raw_affiliation_string":"Wroclaw University of Environmental and Life Sciences, pl.Grunwaldzki 24 a, 50-363 Wroclaw, Poland","institution_ids":["https://openalex.org/I27912750"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I27912750"],"apc_list":null,"apc_paid":null,"fwci":1.0051,"has_fulltext":true,"cited_by_count":10,"citation_normalized_percentile":{"value":0.79518217,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":"71","issue":"1","first_page":"41","last_page":"49"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12754","display_name":"Plant Growth and Agriculture Techniques","score":0.5303000211715698,"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/T12754","display_name":"Plant Growth and Agriculture Techniques","score":0.5303000211715698,"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":0.39160001277923584,"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/T12113","display_name":"Growth and nutrition in plants","score":0.03240000084042549,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/leaf-lettuce","display_name":"leaf lettuce","score":0.9750000238418579},{"id":"https://openalex.org/keywords/nitrogen-fertilization","display_name":"nitrogen fertilization","score":0.9900000095367432},{"id":"https://openalex.org/keywords/spring-harvest","display_name":"spring harvest","score":0.7289999723434448},{"id":"https://openalex.org/keywords/ammonium-nitrate","display_name":"ammonium nitrate","score":0.906000018119812},{"id":"https://openalex.org/keywords/calcium-nitrate","display_name":"calcium nitrate","score":0.9950000047683716},{"id":"https://openalex.org/keywords/ammonium-sulfate","display_name":"ammonium sulfate","score":1.0},{"id":"https://openalex.org/keywords/dmpp","display_name":"DMPP","score":0.5580000281333923},{"id":"https://openalex.org/keywords/lettuce-yield","display_name":"lettuce yield","score":0.7749999761581421},{"id":"https://openalex.org/keywords/lettuce-quality","display_name":"lettuce quality","score":0.8330000042915344},{"id":"https://openalex.org/keywords/nitrate-concentration","display_name":"nitrate content","score":0.7440000176429749},{"id":"https://openalex.org/keywords/reducing-sugars","display_name":"reducing sugars","score":0.7519999742507935},{"id":"https://openalex.org/keywords/dry-weight","display_name":"dry weight","score":0.5210000276565552}],"concepts":[{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.728417158126831},{"id":"https://openalex.org/C2779870022","wikidata":"https://www.wikidata.org/wiki/Q190901","display_name":"Ammonium","level":2,"score":0.7043535709381104},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.6809436678886414},{"id":"https://openalex.org/C2780499131","wikidata":"https://www.wikidata.org/wiki/Q407392","display_name":"Calcium nitrate","level":3,"score":0.6523169279098511},{"id":"https://openalex.org/C2776617377","wikidata":"https://www.wikidata.org/wiki/Q182329","display_name":"Ammonium nitrate","level":2,"score":0.6380215883255005},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.5709573030471802},{"id":"https://openalex.org/C2780560099","wikidata":"https://www.wikidata.org/wiki/Q83323","display_name":"Fertilizer","level":2,"score":0.5679826736450195},{"id":"https://openalex.org/C2776384668","wikidata":"https://www.wikidata.org/wiki/Q182168","display_name":"Nitrate","level":2,"score":0.5664919018745422},{"id":"https://openalex.org/C88972607","wikidata":"https://www.wikidata.org/wiki/Q2666904","display_name":"Human fertilization","level":2,"score":0.48541149497032166},{"id":"https://openalex.org/C168741863","wikidata":"https://www.wikidata.org/wiki/Q777671","display_name":"Sowing","level":2,"score":0.46985164284706116},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.45778146386146545},{"id":"https://openalex.org/C144027150","wikidata":"https://www.wikidata.org/wiki/Q48803","display_name":"Horticulture","level":1,"score":0.431984543800354},{"id":"https://openalex.org/C2780925461","wikidata":"https://www.wikidata.org/wiki/Q191831","display_name":"Ammonium sulfate","level":2,"score":0.4286526143550873},{"id":"https://openalex.org/C169222746","wikidata":"https://www.wikidata.org/wiki/Q4116558","display_name":"Factorial experiment","level":2,"score":0.41540804505348206},{"id":"https://openalex.org/C519063684","wikidata":"https://www.wikidata.org/wiki/Q706","display_name":"Calcium","level":2,"score":0.2826617956161499},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.12185752391815186},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.10401368141174316},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.2478/v10032-009-0025-8","doi":"https://doi.org/10.2478/v10032-009-0025-8","is_oa":true,"landing_page_url":"https://doi.org/10.2478/v10032-009-0025-8","pdf_url":"https://www.sciendo.com/pdf/10.2478/v10032-009-0025-8","source":{"id":"https://openalex.org/S2764862703","display_name":"Journal of Fruit and Ornamental Plant Research","issn_l":"1231-0948","issn":["1231-0948","2300-8849"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310313990","host_organization_name":"De Gruyter","host_organization_lineage":["https://openalex.org/P4310313990"],"host_organization_lineage_names":["De Gruyter"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Fruit and Ornamental Plant Research","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.2478/v10032-009-0025-8","doi":"https://doi.org/10.2478/v10032-009-0025-8","is_oa":true,"landing_page_url":"https://doi.org/10.2478/v10032-009-0025-8","pdf_url":"https://www.sciendo.com/pdf/10.2478/v10032-009-0025-8","source":{"id":"https://openalex.org/S2764862703","display_name":"Journal of Fruit and Ornamental Plant Research","issn_l":"1231-0948","issn":["1231-0948","2300-8849"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core"],"host_organization":"https://openalex.org/P4310313990","host_organization_name":"De Gruyter","host_organization_lineage":["https://openalex.org/P4310313990"],"host_organization_lineage_names":["De Gruyter"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Fruit and Ornamental Plant Research","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/2","score":1.0,"display_name":"Zero hunger"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W1991421334.pdf","grobid_xml":"https://content.openalex.org/works/W1991421334.grobid-xml"},"referenced_works_count":3,"referenced_works":["https://openalex.org/W1015652720","https://openalex.org/W1443560830","https://openalex.org/W2589961062"],"related_works":["https://openalex.org/W2002768469","https://openalex.org/W4301840271","https://openalex.org/W4390353232","https://openalex.org/W2361465522","https://openalex.org/W2382489120","https://openalex.org/W2528406508","https://openalex.org/W4400925118","https://openalex.org/W2358332374","https://openalex.org/W2460121171","https://openalex.org/W7115913763"],"abstract_inverted_index":{"Effect":[0],"of":[1,9,28,92,154,181,212,215,218,226,250,293,297,309,327],"Nitrogen":[2],"Fertilization":[3],"on":[4],"the":[5,57,62,67,69,105,161,171,184,188,216,219,224,229,247,281,287,324,330],"Yield":[6],"and":[7,41,74,137,168,192,201,306,311,322],"Quality":[8],"Field-grown":[10],"Leaf":[11],"Lettuce":[12],"for":[13,102,183,332],"Spring":[14],"Harvest":[15],"Two":[16,152],"field":[17],"experiments":[18],"with":[19,165,175,275],"leaf":[20,155,333],"lettuce":[21,156,185,273,315,334],"were":[22,53,88,157,187],"carried":[23],"out":[24],"in":[25,33,38,61,90,196,228,242,246,286,300,314,329],"2006-2008.":[26],"Each":[27],"them":[29],"was":[30,278],"set":[31],"up":[32],"a":[34,42,243,261,301],"random":[35],"sub-block":[36],"design":[37],"3":[39,113,119,127,143],"replications":[40],"two-factorial":[43],"system.":[44],"The":[45,80,178,272,291],"first":[46],"factor":[47,82],"represented":[48],"different":[49,89,99],"nitrogen":[50,100,182,227,298,328],"doses":[51,296],"that":[52,265],"used":[54],"to":[55,65,104,198,207,236,264,319],"obtain":[56,208],"required":[58],"N":[59],"level":[60,262],"soil":[63,230,331],"prior":[64],"planting":[66],"seedlings,":[68],"levels":[70,308],"being:":[71],"50,":[72],"100":[73,237,267,338],"150":[75,253],"mg":[76,233,238,254,268,339],"N\u00b7dm":[77,234,239,255,269,340],"-3":[78,235,240,256,270,341],".":[79,271,342],"second":[81],"incorporated":[83],"4":[84,111,125,135,141,145,149],"nitrogenous":[85,220],"fertilizers":[86,189],"which":[87,195],"terms":[91],"chemical":[93],"composition,":[94],"and,":[95],"more":[96],"importantly,":[97],"contained":[98],"forms":[101],"introduction":[103],"soil:":[106],"ammonium":[107,129,193,202,276],"nitrate":[108,116,200,284],"34%":[109],"N-[NH":[110,140],"NO":[112,126,142],"],":[114,128,136],"calcium":[115,199],"15.5%":[117],"N-[Ca(NO":[118],")":[120,146],"2":[121,123,133,147],"xH":[122],"O+NH":[124],"sulphate":[130,203,277],"20.0%":[131],"N-[(NH4)":[132],"SO":[134,148],"ENTEC":[138,190],"26%":[139],"+(NH":[144],"+0.8%":[150],"DMPP].":[151],"varieties":[153],"used:":[158],"Casabella":[159],"(of":[160,170],"type":[162,172],"Lollo":[163,173],"Bionda)":[164],"green":[166],"leaves,":[167],"Klausia":[169],"Rosa)":[174],"red":[176],"leaves.":[177,316],"best":[179],"sources":[180],"plants":[186],"26":[191],"nitrate,":[194],"contrast":[197],"made":[204],"it":[205],"possible":[206],"significantly":[209],"higher":[210,295],"yields":[211],"lettuce.":[213,251],"Irrespective":[214],"kind":[217],"fertilizer":[221],"used,":[222],"increasing":[223],"concentration":[225,326],"from":[231],"50":[232],"resulted":[241,299],"significant":[244],"increase":[245],"marketable":[248],"yield":[249,258,320],"At":[252],"this":[257],"remained":[259],"at":[260,266],"similar":[263],"fertilized":[274],"marked":[279],"by":[280],"lowest":[282],"mean":[283],"content":[285,305],"leaves":[288],"before":[289],"harvest.":[290],"use":[292],"gradually":[294],"reduced":[302],"dry":[303],"weight":[304],"lower":[307],"total":[310],"reducing":[312],"sugars":[313],"With":[317],"respect":[318],"size":[321],"quality,":[323],"recommended":[325],"should":[335],"not":[336],"exceed":[337]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2014,"cited_by_count":3},{"year":2012,"cited_by_count":2}],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}
