{"id":"https://openalex.org/W2018927411","doi":"https://doi.org/10.1080/00288233.1978.10427463","title":"Response surfaces of semidwarf wheat for seeding rate, and levels and times of application of nitrogen fertiliser","display_name":"Response surfaces of semidwarf wheat for seeding rate, and levels and times of application of nitrogen fertiliser","publication_year":1978,"publication_date":"1978-11-01","ids":{"openalex":"https://openalex.org/W2018927411","doi":"https://doi.org/10.1080/00288233.1978.10427463","mag":"2018927411"},"language":"en","primary_location":{"id":"doi:10.1080/00288233.1978.10427463","doi":"https://doi.org/10.1080/00288233.1978.10427463","is_oa":true,"landing_page_url":"https://doi.org/10.1080/00288233.1978.10427463","pdf_url":"https://www.tandfonline.com/doi/pdf/10.1080/00288233.1978.10427463?needAccess=true&role=button","source":{"id":"https://openalex.org/S122949266","display_name":"New Zealand Journal of Agricultural Research","issn_l":"0028-8233","issn":["0028-8233","1175-8775"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"New Zealand Journal of Agricultural Research","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://www.tandfonline.com/doi/pdf/10.1080/00288233.1978.10427463?needAccess=true&role=button","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5110145512","display_name":"Charles T. Dougherty","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I143302722","display_name":"University of Kentucky","ror":"https://ror.org/02k3smh20","country_code":"US","type":"education","lineage":["https://openalex.org/I143302722"]},{"id":"https://openalex.org/I184746854","display_name":"Lincoln University","ror":"https://ror.org/04ps1r162","country_code":"NZ","type":"education","lineage":["https://openalex.org/I184746854"]}],"countries":["NZ","US"],"is_corresponding":false,"raw_author_name":"C. T. Dougherty","raw_affiliation_strings":["Department of Plant Science Lincoln College Canterbury New Zealand","Department of Agronomy , University of Kentucky , Lexington, Kentucky , U.S.A"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Plant Science Lincoln College Canterbury New Zealand","institution_ids":["https://openalex.org/I184746854"]},{"raw_affiliation_string":"Department of Agronomy , University of Kentucky , Lexington, Kentucky , U.S.A","institution_ids":["https://openalex.org/I143302722"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053259172","display_name":"B. G. Love","orcid":"https://orcid.org/0000-0001-5255-1400","observed_orcids":["https://orcid.org/0000-0001-5255-1400"]},"institutions":[{"id":"https://openalex.org/I184746854","display_name":"Lincoln University","ror":"https://ror.org/04ps1r162","country_code":"NZ","type":"education","lineage":["https://openalex.org/I184746854"]}],"countries":["NZ"],"is_corresponding":false,"raw_author_name":"B. G. Love","raw_affiliation_strings":["Department of Plant Science, Lincoln College Canterbury, New Zealand"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Plant Science, Lincoln College Canterbury, New Zealand","institution_ids":["https://openalex.org/I184746854"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5040649433","display_name":"N. S. Mountier","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I184746854","display_name":"Lincoln University","ror":"https://ror.org/04ps1r162","country_code":"NZ","type":"education","lineage":["https://openalex.org/I184746854"]}],"countries":["NZ"],"is_corresponding":false,"raw_author_name":"N. S. Mountier","raw_affiliation_strings":["Department of Plant Science, Lincoln College Canterbury, New Zealand"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Plant Science, Lincoln College Canterbury, New Zealand","institution_ids":["https://openalex.org/I184746854"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":6.7101,"has_fulltext":true,"cited_by_count":22,"citation_normalized_percentile":{"value":0.95990923,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":87,"max":92},"biblio":{"volume":"21","issue":"4","first_page":"655","last_page":"663"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12310","display_name":"Crop Yield and Soil Fertility","score":0.9520999789237976,"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":0.9520999789237976,"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":0.03779999911785126,"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/T10733","display_name":"Wheat and Barley Genetics and Pathology","score":0.0038999998942017555,"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/semi-dwarf-wheat","display_name":"semi-dwarf wheat","score":0.9789999723434448},{"id":"https://openalex.org/keywords/seeding-rate","display_name":"seeding rate","score":0.8259999752044678},{"id":"https://openalex.org/keywords/nitrogen-fertiliser","display_name":"nitrogen fertiliser","score":0.9110000133514404},{"id":"https://openalex.org/keywords/tillering","display_name":"tillering","score":0.722000002861023},{"id":"https://openalex.org/keywords/grain-yield","display_name":"grain yield","score":0.6909999847412109},{"id":"https://openalex.org/keywords/yield-components","display_name":"yield components","score":0.9860000014305115},{"id":"https://openalex.org/keywords/spikelets-per-spike","display_name":"spikelets per spike","score":0.9070000052452087},{"id":"https://openalex.org/keywords/grain-nitrogen-concentration","display_name":"grain nitrogen content","score":0.9860000014305115}],"concepts":[{"id":"https://openalex.org/C36248471","wikidata":"https://www.wikidata.org/wiki/Q7445669","display_name":"Seeding","level":2,"score":0.9358317852020264},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.7130260467529297},{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.6770650148391724},{"id":"https://openalex.org/C188198153","wikidata":"https://www.wikidata.org/wiki/Q1613840","display_name":"Limiting","level":2,"score":0.6479654908180237},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.6312165260314941},{"id":"https://openalex.org/C2992211155","wikidata":"https://www.wikidata.org/wiki/Q889514","display_name":"Grain yield","level":2,"score":0.5869143605232239},{"id":"https://openalex.org/C46757340","wikidata":"https://www.wikidata.org/wiki/Q43238","display_name":"Poaceae","level":2,"score":0.4761340916156769},{"id":"https://openalex.org/C140793950","wikidata":"https://www.wikidata.org/wiki/Q168091","display_name":"Animal science","level":1,"score":0.45481929183006287},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.4456353187561035},{"id":"https://openalex.org/C2778312390","wikidata":"https://www.wikidata.org/wiki/Q4139973","display_name":"Growth rate","level":2,"score":0.43447136878967285},{"id":"https://openalex.org/C3020060512","wikidata":"https://www.wikidata.org/wiki/Q15645384","display_name":"Wheat grain","level":2,"score":0.41034039855003357},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3721044957637787},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.29204702377319336},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.11290758848190308},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"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/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1080/00288233.1978.10427463","doi":"https://doi.org/10.1080/00288233.1978.10427463","is_oa":true,"landing_page_url":"https://doi.org/10.1080/00288233.1978.10427463","pdf_url":"https://www.tandfonline.com/doi/pdf/10.1080/00288233.1978.10427463?needAccess=true&role=button","source":{"id":"https://openalex.org/S122949266","display_name":"New Zealand Journal of Agricultural Research","issn_l":"0028-8233","issn":["0028-8233","1175-8775"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"New Zealand Journal of Agricultural Research","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1080/00288233.1978.10427463","doi":"https://doi.org/10.1080/00288233.1978.10427463","is_oa":true,"landing_page_url":"https://doi.org/10.1080/00288233.1978.10427463","pdf_url":"https://www.tandfonline.com/doi/pdf/10.1080/00288233.1978.10427463?needAccess=true&role=button","source":{"id":"https://openalex.org/S122949266","display_name":"New Zealand Journal of Agricultural Research","issn_l":"0028-8233","issn":["0028-8233","1175-8775"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547","https://openalex.org/P4310320449"],"host_organization_lineage_names":["Taylor & Francis","Informa"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"New Zealand Journal of Agricultural Research","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.991100013256073,"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2018927411.pdf","grobid_xml":"https://content.openalex.org/works/W2018927411.grobid-xml"},"referenced_works_count":39,"referenced_works":["https://openalex.org/W583219642","https://openalex.org/W1123563219","https://openalex.org/W1966017732","https://openalex.org/W1968470297","https://openalex.org/W1979523660","https://openalex.org/W1981766193","https://openalex.org/W1981869103","https://openalex.org/W1983137334","https://openalex.org/W1984471287","https://openalex.org/W1986987133","https://openalex.org/W1990532425","https://openalex.org/W2002587529","https://openalex.org/W2003051324","https://openalex.org/W2010641335","https://openalex.org/W2014048860","https://openalex.org/W2037834816","https://openalex.org/W2038850255","https://openalex.org/W2041211170","https://openalex.org/W2053090017","https://openalex.org/W2071000831","https://openalex.org/W2075983543","https://openalex.org/W2077297979","https://openalex.org/W2077419038","https://openalex.org/W2083060086","https://openalex.org/W2101349403","https://openalex.org/W2105739096","https://openalex.org/W2105853526","https://openalex.org/W2128465448","https://openalex.org/W2142750672","https://openalex.org/W2154043851","https://openalex.org/W2154470734","https://openalex.org/W2157399566","https://openalex.org/W2166323745","https://openalex.org/W2319283098","https://openalex.org/W2321045660","https://openalex.org/W2346817248","https://openalex.org/W2464203565","https://openalex.org/W2491678366","https://openalex.org/W2778080590"],"related_works":["https://openalex.org/W4236687470","https://openalex.org/W2366105683","https://openalex.org/W2014048860","https://openalex.org/W1969819857","https://openalex.org/W1552549806","https://openalex.org/W2072567440","https://openalex.org/W7217888245","https://openalex.org/W2043791729","https://openalex.org/W2112053250","https://openalex.org/W2063292813"],"abstract_inverted_index":{"Abstract":[0],"A":[1],"three":[2],"factor":[3],"central":[4],"composite":[5],"second":[6],"order":[7],"design":[8],"in":[9,87,102],"incomplete":[10],"blocks":[11],"was":[12,152],"used":[13],"to":[14,118,235,247,263],"quantify":[15],"the":[16,39,63,88,108,131,158,251],"responses":[17,101],"of":[18,36,41,66,85,93,107,133,160,169,194,217,226,253],"semidwarf":[19],"\u2018Karamu\u2019":[20],"wheat":[21],"established":[22],"at":[23,33,38,53,78,136,154,171,223,241,259],"five":[24,34],"seeding":[25,212,231,243,254],"rates":[26,35,92,165,232,244],"(170\u2013580":[27],"seeds/m":[28],"2":[29],"),":[30],"and":[31,45,62,122,145,156,178,256],"fertilised":[32],"N":[37,51,86,111,134,151,170,176,180,205,227,233,257],"onset":[40],"tillering":[42,54,155,172,260],"(0\u2013124":[43],"kg/ha)":[44],"during":[46,114],"spikelet":[47,115],"growth":[48,116],"(0\u201338":[49],"kg/ha).":[50],"applied":[52,113,135,153],"raised":[55],"grain":[56,74,82,147,175,179,187,201,204,238],"yields":[57],"by":[58],"increasing":[59],"spike":[60,120,144,220,268],"populations":[61,208],"mean":[64,73,146,215],"number":[65],"spikelets":[67,142,218],"per":[68,143,219],"spike,":[69],"but":[70,182,196,214],"generally":[71,173],"depressed":[72,141],"dry":[75],"weights":[76],"and,":[77],"low":[79,230],"rates,":[80],"reduced":[81],"content.":[83,206],"Persistence":[84],"soil":[89],"after":[90],"higher":[91,242],"application":[94],"may":[95],"have":[96],"accounted":[97],"for":[98],"its":[99,123],"linear":[100],"that":[103],"it":[104,140],"influenced":[105],"more":[106],"yield":[109,127,181,195,202],"components.":[110],"fertiliser":[112],"tended":[117],"reduce":[119],"populations,":[121],"effects":[124,252],"on":[125,130,186,200,267],"other":[126],"components":[128,162,193],"depended":[129],"level":[132],"early":[137],"tillering.":[138],"Thus":[139,250],"weight":[148],"when":[149,163],"no":[150],"increased":[157,174,209],"values":[159],"these":[161],"high":[164],"were":[166,261],"applied.":[167],"Applications":[168],"content":[177],"had":[183,197],"little":[184,198],"influence":[185],"yield.":[188],"Seeding":[189],"rate":[190,213,255],"increments":[191],"modified":[192],"effect":[199,266],"or":[203],"Spike":[207],"linearly":[210],"with":[211],"numbers":[216],"declined":[221],"especially":[222],"lower":[224],"levels":[225],"nutrition.":[228],"At":[229],"appeared":[234,246],"be":[236,248],"limiting":[237],"set":[239],"whereas":[240],"assimilates":[245],"limiting.":[249],"fertilisers":[258],"related":[262],"their":[264],"common":[265],"populations.":[269]},"counts_by_year":[{"year":2021,"cited_by_count":1}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}