{"id":"https://openalex.org/W2133563778","doi":"https://doi.org/10.1017/s0021859600061803","title":"Relative effects of Azolla pinnata and its combination with chemical nitrogen fertilizer on growth, yield and N uptake of rice","display_name":"Relative effects of Azolla pinnata and its combination with chemical nitrogen fertilizer on growth, yield and N uptake of rice","publication_year":1986,"publication_date":"1986-02-01","ids":{"openalex":"https://openalex.org/W2133563778","doi":"https://doi.org/10.1017/s0021859600061803","mag":"2133563778"},"language":"en","primary_location":{"id":"doi:10.1017/s0021859600061803","doi":"https://doi.org/10.1017/s0021859600061803","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s0021859600061803","pdf_url":null,"source":{"id":"https://openalex.org/S12429487","display_name":"The Journal of Agricultural Science","issn_l":"0021-8596","issn":["0021-8596","1469-5146"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-2","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of Agricultural Science","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/A5064070682","display_name":"Dhirendra Pratap Singh","orcid":"https://orcid.org/0000-0002-9454-9752","observed_orcids":["https://orcid.org/0000-0002-9454-9752"]},"institutions":[{"id":"https://openalex.org/I77541275","display_name":"Central Rice Research Institute","ror":"https://ror.org/029zb5621","country_code":"IN","type":"facility","lineage":["https://openalex.org/I179420787","https://openalex.org/I77541275"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"D. P. Singh","raw_affiliation_strings":["Laboratory of Blue-green Algae, Central Rice Research Institute, Cuttack-753006, Orissa, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory of Blue-green Algae, Central Rice Research Institute, Cuttack-753006, Orissa, India","institution_ids":["https://openalex.org/I77541275"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100621918","display_name":"Pawan Kumar Singh","orcid":"https://orcid.org/0000-0003-4610-3120","observed_orcids":["https://orcid.org/0000-0003-4610-3120"]},"institutions":[{"id":"https://openalex.org/I77541275","display_name":"Central Rice Research Institute","ror":"https://ror.org/029zb5621","country_code":"IN","type":"facility","lineage":["https://openalex.org/I179420787","https://openalex.org/I77541275"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"P. K. Singh","raw_affiliation_strings":["Laboratory of Blue-green Algae, Central Rice Research Institute, Cuttack-753006, Orissa, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Laboratory of Blue-green Algae, Central Rice Research Institute, Cuttack-753006, Orissa, India","institution_ids":["https://openalex.org/I77541275"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I77541275"],"apc_list":{"value":3550,"currency":"USD","value_usd":3550},"apc_paid":null,"fwci":3.682,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.89844224,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":95},"biblio":{"volume":"106","issue":"1","first_page":"107","last_page":"112"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12294","display_name":"Agricultural Science and Fertilization","score":0.8008000254631042,"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/T12294","display_name":"Agricultural Science and Fertilization","score":0.8008000254631042,"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/T12045","display_name":"Rice Cultivation and Yield Improvement","score":0.12349999696016312,"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/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.06849999725818634,"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/azolla-pinnata","display_name":"Azolla pinnata","score":1.0},{"id":"https://openalex.org/keywords/rice","display_name":"rice","score":0.9580000042915344},{"id":"https://openalex.org/keywords/nitrogen-fertilization","display_name":"nitrogen fertilization","score":0.6840000152587891},{"id":"https://openalex.org/keywords/nitrogen-uptake","display_name":"nitrogen uptake","score":0.722000002861023},{"id":"https://openalex.org/keywords/intercropping","display_name":"intercropping","score":0.7329999804496765},{"id":"https://openalex.org/keywords/grain-yield","display_name":"grain yield","score":0.7509999871253967},{"id":"https://openalex.org/keywords/tillering","display_name":"tillering","score":0.7519999742507935},{"id":"https://openalex.org/keywords/leaf-area-index","display_name":"leaf area index","score":0.8479999899864197},{"id":"https://openalex.org/keywords/panicle-sterility","display_name":"panicle sterility","score":0.7089999914169312},{"id":"https://openalex.org/keywords/wet-and-dry-seasons","display_name":"dry and rainy seasons","score":0.7390000224113464},{"id":"https://openalex.org/keywords/green-manure","display_name":"green manure","score":0.5979999899864197}],"concepts":[{"id":"https://openalex.org/C2781226114","wikidata":"https://www.wikidata.org/wiki/Q1128633","display_name":"Azolla","level":2,"score":0.9879851937294006},{"id":"https://openalex.org/C168741863","wikidata":"https://www.wikidata.org/wiki/Q777671","display_name":"Sowing","level":2,"score":0.7879407405853271},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.7357386350631714},{"id":"https://openalex.org/C2778543611","wikidata":"https://www.wikidata.org/wiki/Q161426","display_name":"Oryza sativa","level":3,"score":0.7239834666252136},{"id":"https://openalex.org/C75337361","wikidata":"https://www.wikidata.org/wiki/Q148600","display_name":"Panicle","level":2,"score":0.722154974937439},{"id":"https://openalex.org/C2780560099","wikidata":"https://www.wikidata.org/wiki/Q83323","display_name":"Fertilizer","level":2,"score":0.5334696173667908},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.49852609634399414},{"id":"https://openalex.org/C2780138947","wikidata":"https://www.wikidata.org/wiki/Q393855","display_name":"Dry matter","level":2,"score":0.43883076310157776},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1017/s0021859600061803","doi":"https://doi.org/10.1017/s0021859600061803","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s0021859600061803","pdf_url":null,"source":{"id":"https://openalex.org/S12429487","display_name":"The Journal of Agricultural Science","issn_l":"0021-8596","issn":["0021-8596","1469-5146"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-c","jufo-2","norway-1","poland-70","russia-white-list-1"],"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The Journal of Agricultural Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.991100013256073,"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":11,"referenced_works":["https://openalex.org/W655920447","https://openalex.org/W1512608287","https://openalex.org/W1551857351","https://openalex.org/W1691097873","https://openalex.org/W2002477041","https://openalex.org/W2035248813","https://openalex.org/W2043778673","https://openalex.org/W2049343941","https://openalex.org/W2749538595","https://openalex.org/W3007125419","https://openalex.org/W6633060347"],"related_works":["https://openalex.org/W2001191164","https://openalex.org/W2119426991","https://openalex.org/W1990164680","https://openalex.org/W3089171221","https://openalex.org/W1976593121","https://openalex.org/W201764675","https://openalex.org/W2317206141","https://openalex.org/W2056840771","https://openalex.org/W2141973974","https://openalex.org/W2109707488"],"abstract_inverted_index":{"SUMMARY":[0],"Field":[1],"experiments":[2],"conducted":[3],"during":[4,78,107,129,159,210],"wet":[5,109,131,212],"and":[6,11,45,115,156],"dry":[7],"seasons":[8],"with":[9,88,119,139,180,184],"Ratna":[10],"Jaya":[12,106],"varieties":[13,70],"of":[14,23,32,34,66,105,151,154,165,172,192,200],"rice":[15,69,89,120,140,167,181],"(Oryza":[16],"sativa":[17],"Linn.)":[18],"indicated":[19],"that":[20,191],"the":[21,68,79,97,108,130,149,166,170,193,198,211],"use":[22],"Azolla":[24,52,83,111,134,136,146,173,201],"pinnata":[25],"as":[26,85],"fertilizer":[27],"increased":[28,148],"growth":[29],"in":[30,48,56,102,169,182],"terms":[31],"number":[33,150,153],"tillers,":[35],"leaf":[36],"area":[37],"index,":[38],"dry-matter":[39],"production,":[40],"grain":[41,64,103,123,144],"yield,":[42],"N":[43,74,100,128,163],"uptake":[44,164],"its":[46],"accumulation":[47],"different":[49],"plant":[50],"parts.":[51],"incorporation":[53,112,174,202],"before":[54,113,175,203],"planting":[55,114,176,204],"addition":[57],"to":[58,96,190],"30":[59,91,185],"kg":[60,73,92,99,127,186,195],"N/ha":[61,93,187,196],"produced":[62,121,141],"higher":[63],"yields":[65],"both":[67,160],"than":[71,125],"60":[72,98,126,194],"/":[75],"h":[76],"a":[77],"two":[80],"seasons,":[81],"while":[82],"grown":[84],"an":[86],"intercrop":[87],"plus":[90,205],"was":[94,188,208],"superior":[95],"treatment":[101,199],"production":[104],"season.":[110,132],"also":[116],"once":[117,179,206],"intercropped":[118,138,178,207],"more":[122],"yield":[124],"Among":[133],"treatments,":[135],"twice":[137],"comparatively":[142],"lower":[143],"yield.":[145],"application":[147],"panicles/m2,":[152],"grains/panicle":[155],"reduced":[157],"sterility":[158],"seasons.":[161],"The":[162],"crop":[168],"treatments":[171],"or":[177],"combination":[183],"similar":[189,209],"whereas":[197],"season":[213],"only.":[214]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2022,"cited_by_count":1}],"updated_date":"2026-11-11T12:16:26.678958","created_date":"2016-06-24T00:00:00"}
