{"id":"https://openalex.org/W7214945587","doi":"https://doi.org/10.5958/0974-8164.2026.00053.5","title":"Assessing the impact of nitrogen and weed management on weeds and productivity of dry direct-seeded rice in eastern India","display_name":"Assessing the impact of nitrogen and weed management on weeds and productivity of dry direct-seeded rice in eastern India","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7214945587","doi":"https://doi.org/10.5958/0974-8164.2026.00053.5"},"language":"en","primary_location":{"id":"doi:10.5958/0974-8164.2026.00053.5","doi":"https://doi.org/10.5958/0974-8164.2026.00053.5","is_oa":false,"landing_page_url":"https://doi.org/10.5958/0974-8164.2026.00053.5","pdf_url":null,"source":{"id":"https://openalex.org/S2764448922","display_name":"Indian Journal of Weed Science","issn_l":"0253-8040","issn":["0253-8040","0974-8164"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4324113251","host_organization_name":"Indian Society of Weed science","host_organization_lineage":["https://openalex.org/P4324113251"],"host_organization_lineage_names":["Indian Society of Weed science"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Indian Journal of Weed 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/A5153586401","display_name":"Sachin Singh","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405260039","display_name":"Janta Vedic College","ror":"https://ror.org/0341kh820","country_code":"IN","type":"education","lineage":["https://openalex.org/I4405260039"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Sachin Singh","raw_affiliation_strings":["Department of Agronomy, Janta Vedic College"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agronomy, Janta Vedic College","institution_ids":["https://openalex.org/I4405260039"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021434870","display_name":"Sanjay Singh Rathore","orcid":"https://orcid.org/0000-0001-6725-1478","observed_orcids":["https://orcid.org/0000-0001-6725-1478"]},"institutions":[{"id":"https://openalex.org/I179420787","display_name":"Indian Council of Agricultural Research","ror":"https://ror.org/04fw54a43","country_code":"IN","type":"government","lineage":["https://openalex.org/I179420787"]},{"id":"https://openalex.org/I4405260039","display_name":"Janta Vedic College","ror":"https://ror.org/0341kh820","country_code":"IN","type":"education","lineage":["https://openalex.org/I4405260039"]},{"id":"https://openalex.org/I45509622","display_name":"Indian Agricultural Research Institute","ror":"https://ror.org/01bzgdw81","country_code":"IN","type":"facility","lineage":["https://openalex.org/I179420787","https://openalex.org/I45509622"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Sanjay Singh Rathore","raw_affiliation_strings":["Department of Agronomy, Janta Vedic College","Division of Agronomy, ICAR-Indian Agricultural Research Institute"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agronomy, Janta Vedic College","institution_ids":["https://openalex.org/I4405260039"]},{"raw_affiliation_string":"Division of Agronomy, ICAR-Indian Agricultural Research Institute","institution_ids":["https://openalex.org/I179420787","https://openalex.org/I45509622"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110968262","display_name":"Jaibir Tomar","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405260039","display_name":"Janta Vedic College","ror":"https://ror.org/0341kh820","country_code":"IN","type":"education","lineage":["https://openalex.org/I4405260039"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Jaibir Tomar","raw_affiliation_strings":["Department of Agronomy, Janta Vedic College"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agronomy, Janta Vedic College","institution_ids":["https://openalex.org/I4405260039"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5098606302","display_name":"Subhas Babu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I179420787","display_name":"Indian Council of Agricultural Research","ror":"https://ror.org/04fw54a43","country_code":"IN","type":"government","lineage":["https://openalex.org/I179420787"]},{"id":"https://openalex.org/I4405260039","display_name":"Janta Vedic College","ror":"https://ror.org/0341kh820","country_code":"IN","type":"education","lineage":["https://openalex.org/I4405260039"]},{"id":"https://openalex.org/I45509622","display_name":"Indian Agricultural Research Institute","ror":"https://ror.org/01bzgdw81","country_code":"IN","type":"facility","lineage":["https://openalex.org/I179420787","https://openalex.org/I45509622"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Subhas Babu","raw_affiliation_strings":["Department of Agronomy, Janta Vedic College","Division of Agronomy, ICAR-Indian Agricultural Research Institute"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agronomy, Janta Vedic College","institution_ids":["https://openalex.org/I4405260039"]},{"raw_affiliation_string":"Division of Agronomy, ICAR-Indian Agricultural Research Institute","institution_ids":["https://openalex.org/I179420787","https://openalex.org/I45509622"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083104282","display_name":"Sasmita Tripathy","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I179420787","display_name":"Indian Council of Agricultural Research","ror":"https://ror.org/04fw54a43","country_code":"IN","type":"government","lineage":["https://openalex.org/I179420787"]},{"id":"https://openalex.org/I4405260039","display_name":"Janta Vedic College","ror":"https://ror.org/0341kh820","country_code":"IN","type":"education","lineage":["https://openalex.org/I4405260039"]},{"id":"https://openalex.org/I45509622","display_name":"Indian Agricultural Research Institute","ror":"https://ror.org/01bzgdw81","country_code":"IN","type":"facility","lineage":["https://openalex.org/I179420787","https://openalex.org/I45509622"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Sasmita Tripathy","raw_affiliation_strings":["Department of Agronomy, Janta Vedic College","Division of Agronomy, ICAR-Indian Agricultural Research Institute"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agronomy, Janta Vedic College","institution_ids":["https://openalex.org/I4405260039"]},{"raw_affiliation_string":"Division of Agronomy, ICAR-Indian Agricultural Research Institute","institution_ids":["https://openalex.org/I179420787","https://openalex.org/I45509622"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5153565053","display_name":"Shashank Patel","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I179420787","display_name":"Indian Council of Agricultural Research","ror":"https://ror.org/04fw54a43","country_code":"IN","type":"government","lineage":["https://openalex.org/I179420787"]},{"id":"https://openalex.org/I4405260039","display_name":"Janta Vedic College","ror":"https://ror.org/0341kh820","country_code":"IN","type":"education","lineage":["https://openalex.org/I4405260039"]},{"id":"https://openalex.org/I45509622","display_name":"Indian Agricultural Research Institute","ror":"https://ror.org/01bzgdw81","country_code":"IN","type":"facility","lineage":["https://openalex.org/I179420787","https://openalex.org/I45509622"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Shashank Patel","raw_affiliation_strings":["Department of Agronomy, Janta Vedic College","Division of Agronomy, ICAR-Indian Agricultural Research Institute"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Agronomy, Janta Vedic College","institution_ids":["https://openalex.org/I4405260039"]},{"raw_affiliation_string":"Division of Agronomy, ICAR-Indian Agricultural Research Institute","institution_ids":["https://openalex.org/I179420787","https://openalex.org/I45509622"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5153586401"],"corresponding_institution_ids":["https://openalex.org/I4405260039"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"58","issue":"3","first_page":"340","last_page":"344"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10774","display_name":"Weed Control and Herbicide Applications","score":0.9682999849319458,"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/T10774","display_name":"Weed Control and Herbicide Applications","score":0.9682999849319458,"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/T12045","display_name":"Rice Cultivation and Yield Improvement","score":0.025499999523162842,"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/T12294","display_name":"Agricultural Science and Fertilization","score":0.0038999998942017555,"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/dry-direct-seeded-rice","display_name":"dry-seeded rice","score":0.9829999804496765},{"id":"https://openalex.org/keywords/nitrogen-management","display_name":"nitrogen management","score":0.8550000190734863},{"id":"https://openalex.org/keywords/weed-control","display_name":"weed control","score":0.9890000224113464},{"id":"https://openalex.org/keywords/brown-manuring","display_name":"brown manuring","score":0.9120000004768372},{"id":"https://openalex.org/keywords/sesbania-aculeata","display_name":"Sesbania aculeata","score":0.9980000257492065},{"id":"https://openalex.org/keywords/farmyard-manure","display_name":"farmyard manure","score":0.6940000057220459},{"id":"https://openalex.org/keywords/leaf-color-chart","display_name":"leaf color chart","score":0.8040000200271606},{"id":"https://openalex.org/keywords/pendimethalin","display_name":"pendimethalin","score":0.8629999756813049},{"id":"https://openalex.org/keywords/bispyribac-sodium","display_name":"bispyribac-sodium","score":0.9520000219345093},{"id":"https://openalex.org/keywords/weed-density","display_name":"weed density","score":0.48399999737739563},{"id":"https://openalex.org/keywords/weed-dry-biomass","display_name":"weed dry biomass","score":0.9589999914169312},{"id":"https://openalex.org/keywords/weed-control-efficiency","display_name":"weed control efficiency","score":0.7419999837875366},{"id":"https://openalex.org/keywords/weed-control-index","display_name":"weed control index","score":0.7350000143051147},{"id":"https://openalex.org/keywords/weed-competition","display_name":"weed competition","score":0.46700000762939453},{"id":"https://openalex.org/keywords/grain-yield","display_name":"grain yield","score":0.6840000152587891},{"id":"https://openalex.org/keywords/eastern-india","display_name":"Eastern India","score":0.48399999737739563},{"id":"https://openalex.org/keywords/jharkhand","display_name":"Jharkhand","score":0.8410000205039978},{"id":"https://openalex.org/keywords/rainfed-upland-rice","display_name":"rainfed upland rice","score":0.843999981880188}],"concepts":[{"id":"https://openalex.org/C2777575642","wikidata":"https://www.wikidata.org/wiki/Q311305","display_name":"Sesbania","level":2,"score":0.9605000019073486},{"id":"https://openalex.org/C153136566","wikidata":"https://www.wikidata.org/wiki/Q3631460","display_name":"Kharif crop","level":3,"score":0.8439000248908997},{"id":"https://openalex.org/C2778302866","wikidata":"https://www.wikidata.org/wiki/Q423895","display_name":"Pendimethalin","level":3,"score":0.725600004196167},{"id":"https://openalex.org/C147273371","wikidata":"https://www.wikidata.org/wiki/Q2739141","display_name":"Weed control","level":2,"score":0.7250999808311462},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.6822999715805054},{"id":"https://openalex.org/C2775891814","wikidata":"https://www.wikidata.org/wiki/Q101879","display_name":"Weed","level":2,"score":0.6682000160217285},{"id":"https://openalex.org/C75337361","wikidata":"https://www.wikidata.org/wiki/Q148600","display_name":"Panicle","level":2,"score":0.5972999930381775},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.46309998631477356},{"id":"https://openalex.org/C140505726","wikidata":"https://www.wikidata.org/wiki/Q495304","display_name":"Forensic science","level":2,"score":0.44780001044273376},{"id":"https://openalex.org/C204983608","wikidata":"https://www.wikidata.org/wiki/Q2111958","display_name":"Productivity","level":2,"score":0.4235000014305115},{"id":"https://openalex.org/C190638079","wikidata":"https://www.wikidata.org/wiki/Q954381","display_name":"Green manure","level":2,"score":0.38909998536109924},{"id":"https://openalex.org/C2779014827","wikidata":"https://www.wikidata.org/wiki/Q1024207","display_name":"Non-invasive ventilation","level":3,"score":0.35339999198913574},{"id":"https://openalex.org/C510538283","wikidata":"https://www.wikidata.org/wiki/Q674","display_name":"Phosphorus","level":2,"score":0.34150001406669617},{"id":"https://openalex.org/C126343540","wikidata":"https://www.wikidata.org/wiki/Q889514","display_name":"Crop yield","level":2,"score":0.3327000141143799},{"id":"https://openalex.org/C55347375","wikidata":"https://www.wikidata.org/wiki/Q3267963","display_name":"Cultural control","level":3,"score":0.3133000135421753},{"id":"https://openalex.org/C2778956855","wikidata":"https://www.wikidata.org/wiki/Q1391422","display_name":"Cyperus rotundus","level":2,"score":0.31310001015663147},{"id":"https://openalex.org/C12534583","wikidata":"https://www.wikidata.org/wiki/Q10564271","display_name":"Potash","level":3,"score":0.3050000071525574},{"id":"https://openalex.org/C42972112","wikidata":"https://www.wikidata.org/wiki/Q170201","display_name":"Veterinary medicine","level":1,"score":0.30149999260902405},{"id":"https://openalex.org/C115540264","wikidata":"https://www.wikidata.org/wiki/Q2945560","display_name":"Biomass (ecology)","level":2,"score":0.295199990272522},{"id":"https://openalex.org/C2778543611","wikidata":"https://www.wikidata.org/wiki/Q161426","display_name":"Oryza sativa","level":3,"score":0.2840999960899353},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.2777000069618225},{"id":"https://openalex.org/C2779357833","wikidata":"https://www.wikidata.org/wiki/Q163965","display_name":"Echinochloa","level":3,"score":0.26759999990463257},{"id":"https://openalex.org/C2776096895","wikidata":"https://www.wikidata.org/wiki/Q1385709","display_name":"Seedling","level":2,"score":0.26269999146461487},{"id":"https://openalex.org/C38304854","wikidata":"https://www.wikidata.org/wiki/Q185716","display_name":"Manure","level":2,"score":0.25369998812675476}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.5958/0974-8164.2026.00053.5","doi":"https://doi.org/10.5958/0974-8164.2026.00053.5","is_oa":false,"landing_page_url":"https://doi.org/10.5958/0974-8164.2026.00053.5","pdf_url":null,"source":{"id":"https://openalex.org/S2764448922","display_name":"Indian Journal of Weed Science","issn_l":"0253-8040","issn":["0253-8040","0974-8164"],"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4324113251","host_organization_name":"Indian Society of Weed science","host_organization_lineage":["https://openalex.org/P4324113251"],"host_organization_lineage_names":["Indian Society of Weed science"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Indian Journal of Weed Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":1.0,"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":10,"referenced_works":["https://openalex.org/W1984676982","https://openalex.org/W1993273184","https://openalex.org/W2061142167","https://openalex.org/W2070421458","https://openalex.org/W2089733927","https://openalex.org/W2156085609","https://openalex.org/W2766281028","https://openalex.org/W4313437573","https://openalex.org/W4385352679","https://openalex.org/W4388850116"],"related_works":["https://openalex.org/W4385352679","https://openalex.org/W2952925552","https://openalex.org/W3157276775","https://openalex.org/W4388850116","https://openalex.org/W2790409640","https://openalex.org/W3203233358","https://openalex.org/W1525309786","https://openalex.org/W2061370600","https://openalex.org/W4387454973","https://openalex.org/W4408990865"],"abstract_inverted_index":{"The":[0,49,192],"objective":[1],"of":[2,20,67,77,154,244,251],"this":[3],"study":[4,25],"was":[5,26,47],"to":[6,14,123,142,303],"identify":[7],"effective":[8],"nitrogen":[9,54],"and":[10,17,70,79,214,216,222,227,231,253,272,277,281,285,288,292],"weed":[11,138,199,209,217,266,268],"management":[12,139,200,246,257],"options":[13],"manage":[15],"weeds":[16,194],"improve":[18],"productivity":[19],"dry":[21,218,269],"direct-seeded":[22],"rice.":[23],"This":[24],"conducted":[27],"during":[28],"kharif":[29],"2020":[30],"at":[31,97,100,170,189,225,279,290],"Central":[32],"Rainfed":[33],"Upland":[34],"Rice":[35],"Research":[36],"Station":[37],"(CRURRS),":[38],"Hazaribagh,":[39],"Jharkhand.":[40],"A":[41],"split":[42],"plot":[43],"design":[44],"replicated":[45],"thrice":[46],"used.":[48],"tested":[50],"treatments":[51,140],"include:":[52,144],"three":[53],"(N)":[55],"doses":[56],"in":[57,90,265,309],"main":[58],"plots,":[59],"viz.":[60],"No":[61],"N,":[62],"with":[63,87,163,176,204,262,296],"recommended":[64],"dose":[65],"(RDF)":[66],"phosphorus":[68],"(P)":[69],"potash":[71],"(K)":[72],"only":[73],"[No":[74],"N":[75,88,108,116,245,256],"(RDF":[76],"P":[78],"K)];":[80],"RDF:":[81],"80":[82],"N:17":[83],"P:33":[84],"K":[85],"kg/ha":[86,157,182],"applied":[89],"3":[91],"splits":[92],"i.e.":[93],"50%":[94,107,115],"basal":[95],"+25%":[96,99],"tillering":[98],"panicle":[101,124],"initiation":[102,125],"stage":[103],"[RDF":[104],"(N:P:K=80:17:33":[105],"kg/ha)];":[106],"using":[109,127],"farm":[110],"yard":[111],"manure":[112],"(FYM)":[113],"+":[114,134],"as":[117],"need":[118],"based":[119,255],"top":[120],"dressing":[121],"up":[122],"stage,":[126],"leaf":[128],"colour":[129],"chart":[130],"(LCC)":[131],"[50%":[132],"FYM":[133,252],"RTNM":[135],"(LCC)].":[136],"Four":[137],"assigned":[141],"sub-plots":[143],"un-weeded":[145,240],"control":[146,149],"(UWC),":[147],"weed-free":[148],"(WFC),":[150],"pre-emergence":[151],"application":[152],"(PE)":[153],"pendimethalin":[155,180],"1.5":[156,181],"followed":[158],"by":[159,211,220,236],"(fb)":[160],"brown":[161,202],"manuring":[162,203],"Sesbania":[164,169,205],"aculeata":[165,206],"(by":[166],"knocking":[167],"down":[168],"25":[171,178,187,190],"days":[172],"after":[173],"seeding":[174],"(DAS)":[175],"bispyribac-Na":[177],"g/ha),":[179],"PE":[183],"fb":[184],"bispyribac":[185],"-Na":[186],"g/ha":[188],"DAS.":[191],"grassy":[193],"were":[195],"most":[196,306],"dominant.":[197],"Amongst":[198],"treatments,":[201],"significantly":[207],"reduced":[208],"density":[210],"79.6":[212],"%":[213,224,238,276],"88.8%":[215],"biomass":[219],"90.6%,":[221],"96.6":[223],"40":[226,280,291],"70":[228,282,293],"DAS,":[229,283,294],"respectively":[230],"increased":[232],"rice":[233],"grain":[234,260],"yield":[235,261],"31.06":[237],"over":[239],"control.":[241],"In":[242],"case":[243],"practices,":[247],"the":[248,305,310],"combined":[249],"use":[250],"LCC":[254],"produced":[258],"highest":[259,297],"reater":[263],"reduction":[264],"density,":[267],"biomass,":[270],"WI":[271],"increasing":[273],"WCE":[274],"(64.1":[275],"76.4%":[278],"respectively)":[284,295],"WCI":[286],"(70.5%":[287],"72.9%":[289],"overall":[298],"B:C":[299],"ratio":[300],"(2.65),":[301],"proving":[302],"be":[304],"profitable":[307],"combination":[308],"study.":[311]},"counts_by_year":[],"updated_date":"2026-10-14T16:39:01.820549","created_date":"2026-10-01T00:00:00"}
