{"id":"https://openalex.org/W2015368688","doi":"https://doi.org/10.4314/jagst.v4i1.31669","title":"Influence of Organic and Inorganic Sources of Fertilizer on Growth and Leaf Yield of Kale (Brassica oleraceae Var. Acephala D.C.)","display_name":"Influence of Organic and Inorganic Sources of Fertilizer on Growth and Leaf Yield of Kale (Brassica oleraceae Var. Acephala D.C.)","publication_year":2005,"publication_date":"2005-05-19","ids":{"openalex":"https://openalex.org/W2015368688","doi":"https://doi.org/10.4314/jagst.v4i1.31669","mag":"2015368688"},"language":"en","primary_location":{"id":"doi:10.4314/jagst.v4i1.31669","doi":"https://doi.org/10.4314/jagst.v4i1.31669","is_oa":true,"landing_page_url":"https://doi.org/10.4314/jagst.v4i1.31669","pdf_url":"https://www.ajol.info/index.php/jagst/article/download/31669/23505","source":{"id":"https://openalex.org/S4210219248","display_name":"Journal of Agriculture Science and Technology","issn_l":"1561-7645","issn":["1561-7645"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310321518","host_organization_name":"African Journals OnLine","host_organization_lineage":["https://openalex.org/P4310321518"],"host_organization_lineage_names":["African Journals OnLine"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Agriculture, Science and Technology","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://www.ajol.info/index.php/jagst/article/download/31669/23505","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5023145142","display_name":"Mary O. Abukutsa-Onyango","orcid":"https://orcid.org/0000-0002-4693-3637","observed_orcids":["https://orcid.org/0000-0002-4693-3637"]},"institutions":[{"id":"https://openalex.org/I195610458","display_name":"Maseno University","ror":"https://ror.org/023pskh72","country_code":"KE","type":"education","lineage":["https://openalex.org/I195610458"]}],"countries":["KE"],"is_corresponding":false,"raw_author_name":"MO Abukutsa Onyango","raw_affiliation_strings":["Department of Horticulture, Maseno University, Private Bag, MASENO, Kenya"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Horticulture, Maseno University, Private Bag, MASENO, Kenya","institution_ids":["https://openalex.org/I195610458"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111579304","display_name":"JC Onyango","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I195610458","display_name":"Maseno University","ror":"https://ror.org/023pskh72","country_code":"KE","type":"education","lineage":["https://openalex.org/I195610458"]}],"countries":["KE"],"is_corresponding":false,"raw_author_name":"JC Onyango","raw_affiliation_strings":["Department of Botany, Maseno University,  Private bag,  Maseno, KENYA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Botany, Maseno University,  Private bag,  Maseno, KENYA","institution_ids":["https://openalex.org/I195610458"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I195610458"],"apc_list":null,"apc_paid":null,"fwci":0.5265,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.72025278,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":94},"biblio":{"volume":"4","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12294","display_name":"Agricultural Science and Fertilization","score":0.9911999702453613,"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":0.9911999702453613,"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/T12754","display_name":"Plant Growth and Agriculture Techniques","score":0.006099999882280827,"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/T13246","display_name":"Agriculture, Plant Science, Crop Management","score":0.0019000000320374966,"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/kale","display_name":"kale","score":0.9990000128746033},{"id":"https://openalex.org/keywords/tithonia-diversifolia","display_name":"Tithonia diversifolia","score":0.9459999799728394},{"id":"https://openalex.org/keywords/farmyard-manure","display_name":"farmyard manure","score":0.875},{"id":"https://openalex.org/keywords/diammonium-phosphate","display_name":"diammonium phosphate","score":0.8740000128746033},{"id":"https://openalex.org/keywords/calcium-ammonium-nitrate","display_name":"calcium ammonium nitrate","score":1.0},{"id":"https://openalex.org/keywords/organic-fertilizer","display_name":"organic fertilizer","score":0.7250000238418579},{"id":"https://openalex.org/keywords/chemical-fertilizers","display_name":"mineral fertilizers","score":0.8809999823570251},{"id":"https://openalex.org/keywords/leaf-yield","display_name":"leaf yield","score":0.8289999961853027},{"id":"https://openalex.org/keywords/nitrogen-deficiency","display_name":"nitrogen deficiency","score":0.4880000054836273},{"id":"https://openalex.org/keywords/soil-fertility","display_name":"soil fertility","score":0.7910000085830688},{"id":"https://openalex.org/keywords/smallholder-farmers","display_name":"smallholder farmers","score":0.5429999828338623},{"id":"https://openalex.org/keywords/western-kenya","display_name":"Western Kenya","score":0.39899998903274536}],"concepts":[{"id":"https://openalex.org/C2777538795","wikidata":"https://www.wikidata.org/wiki/Q136941","display_name":"Tithonia","level":2,"score":0.9455232620239258},{"id":"https://openalex.org/C2776899970","wikidata":"https://www.wikidata.org/wiki/Q418889","display_name":"Diammonium phosphate","level":3,"score":0.8629215359687805},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.6486083269119263},{"id":"https://openalex.org/C2780560099","wikidata":"https://www.wikidata.org/wiki/Q83323","display_name":"Fertilizer","level":2,"score":0.5747369527816772},{"id":"https://openalex.org/C202050865","wikidata":"https://www.wikidata.org/wiki/Q35852","display_name":"Hectare","level":3,"score":0.5407531261444092},{"id":"https://openalex.org/C2780138947","wikidata":"https://www.wikidata.org/wiki/Q393855","display_name":"Dry matter","level":2,"score":0.5014865398406982},{"id":"https://openalex.org/C38774213","wikidata":"https://www.wikidata.org/wiki/Q202080","display_name":"Soil fertility","level":3,"score":0.4844486713409424},{"id":"https://openalex.org/C2780739461","wikidata":"https://www.wikidata.org/wiki/Q212254","display_name":"Compost","level":2,"score":0.4282878041267395},{"id":"https://openalex.org/C190638079","wikidata":"https://www.wikidata.org/wiki/Q954381","display_name":"Green manure","level":2,"score":0.41469329595565796},{"id":"https://openalex.org/C38304854","wikidata":"https://www.wikidata.org/wiki/Q185716","display_name":"Manure","level":2,"score":0.41312819719314575},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.38087567687034607},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.211012601852417},{"id":"https://openalex.org/C159750122","wikidata":"https://www.wikidata.org/wiki/Q96621023","display_name":"Soil water","level":2,"score":0.1437338888645172},{"id":"https://openalex.org/C118518473","wikidata":"https://www.wikidata.org/wiki/Q11451","display_name":"Agriculture","level":2,"score":0.10090199112892151},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.4314/jagst.v4i1.31669","doi":"https://doi.org/10.4314/jagst.v4i1.31669","is_oa":true,"landing_page_url":"https://doi.org/10.4314/jagst.v4i1.31669","pdf_url":"https://www.ajol.info/index.php/jagst/article/download/31669/23505","source":{"id":"https://openalex.org/S4210219248","display_name":"Journal of Agriculture Science and Technology","issn_l":"1561-7645","issn":["1561-7645"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310321518","host_organization_name":"African Journals OnLine","host_organization_lineage":["https://openalex.org/P4310321518"],"host_organization_lineage_names":["African Journals OnLine"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Agriculture, Science and Technology","raw_type":"journal-article"},{"id":"pmh:oai:ajol.info:article/31669","doi":null,"is_oa":true,"landing_page_url":"https://www.ajol.info/index.php/jagst/article/view/31669","pdf_url":null,"source":{"id":"https://openalex.org/S4210219248","display_name":"Journal of Agriculture Science and Technology","issn_l":"1561-7645","issn":["1561-7645"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310321518","host_organization_name":"African Journals OnLine","host_organization_lineage":["https://openalex.org/P4310321518"],"host_organization_lineage_names":["African Journals OnLine"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"1561-7645","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"doi:10.4314/jagst.v4i1.31669","doi":"https://doi.org/10.4314/jagst.v4i1.31669","is_oa":true,"landing_page_url":"https://doi.org/10.4314/jagst.v4i1.31669","pdf_url":"https://www.ajol.info/index.php/jagst/article/download/31669/23505","source":{"id":"https://openalex.org/S4210219248","display_name":"Journal of Agriculture Science and Technology","issn_l":"1561-7645","issn":["1561-7645"],"is_oa":true,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310321518","host_organization_name":"African Journals OnLine","host_organization_lineage":["https://openalex.org/P4310321518"],"host_organization_lineage_names":["African Journals OnLine"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Agriculture, Science and Technology","raw_type":"journal-article"},"sustainable_development_goals":[{"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2","score":1.0}],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2015368688.pdf"},"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W7110951794","https://openalex.org/W2892669047","https://openalex.org/W4386087861","https://openalex.org/W7065172277","https://openalex.org/W2268951601","https://openalex.org/W941103490","https://openalex.org/W2948296287","https://openalex.org/W2202720549","https://openalex.org/W4306631914","https://openalex.org/W2770583935"],"abstract_inverted_index":{"Brassica":[0],"oleraceae":[1],"var.":[2],"Acephala":[3],"D.C.":[4],"(kale,":[5],"sukuma":[6],"wiki)":[7],"is":[8,18],"the":[9,38,109,251,275,285],"most":[10,261],"important":[11],"vegetable":[12],"in":[13,90,158,170,231,263],"Kenya":[14],"but":[15],"its":[16,50,228],"production":[17,288],"hampered":[19],"by":[20,193],"low":[21],"soil":[22,79,89],"fertility":[23,80],"particularly":[24],"Nitrogen":[25],"and":[26,37,62,65,72,81,104,116,123,201,211,219,257,287,295],"Phosphorus.":[27],"Most":[28],"small":[29],"holder":[30],"farmers":[31,262,276],"do":[32],"not":[33],"utilize":[34],"inorganic":[35,67,117,212,235,246,254],"fertilizers":[36,68,255],"use":[39,53],"of":[40,54,111,119,126,214,222,248,253,281,289,292],"organic":[41,56,210,265],"sources":[42,57,118,213,247,266,280],"alone":[43],"may":[44],"have":[45],"higher":[46],"labour":[47],"requirements":[48],"for":[49,77],"application.":[51],"The":[52,128],"two":[55,66],"Tithonia":[58,112,136,224],"diversifolia":[59],"(Tithonia)":[60],"leaves":[61,269],"farmyard":[63,114],"manure":[64,115],"Diammonium":[69,161],"Phosphate":[70],"(DAP)":[71,163],"Calcium":[73,173],"Ammonium":[74,174],"Nitrate":[75],"(CAN)":[76,176],"improved":[78],"kale":[82],"yields":[83,239,286],"was":[84,97,191,206],"investigated":[85],"on":[86,121,227],"nitrogen":[87],"limiting":[88],"Western":[91],"Kenya,":[92,264],"Maseno":[93],"University.":[94],"An":[95],"experiment":[96],"carried":[98],"out":[99],"twice":[100],"between":[101],"January":[102],"1999":[103],"April":[105],"2000":[106],"to":[107,241,260,274,283],"evaluate":[108],"effect":[110],"diversifolia,":[113],"fertilizer":[120,215,236,282],"growth":[122,218],"leaf":[124,137,149,196,202,220,225,238],"yield":[125,190,221],"kale.":[127,223,290],"treatments":[129],"included:":[130],"T1":[131],"-":[132,135,147,182],"control,":[133],"T2":[134],"biomass":[138,150,226],"incorporated":[139,151],"5":[140],"tons":[141,153,186],"per":[142,154,168,179,187,198],"hectare":[143,155,169],"(dry":[144,156],"matter),":[145],"T3":[146],"tithonia":[148,268],"(4.5":[152],"matter)":[157],"combination":[159,171,232],"with":[160,172,233,244],"phosphate":[162],"T4":[164],"\u2013":[165],"DAP":[166],"(200kg":[167],"nitrate":[175],"500":[177],"kg":[178],"hectare),":[180],"T5":[181],"Farmyard":[183],"manure,":[184],"15":[185],"hectare.":[188],"Leaf":[189],"assessed":[192],"both":[194],"cumulative":[195],"weight":[197],"given":[199],"plant":[200,204],"number,":[203],"height":[205],"also":[207],"taken.":[208],"Both":[209],"significantly":[216],"increased":[217],"own":[229],"or":[230],"an":[234],"gave":[237],"comparable":[240],"those":[242],"applied":[243],"exclusively":[245],"fertilizer.":[249],"With":[250],"prices":[252],"increasing":[256],"becoming":[258],"unaffordable":[259],"like":[267],"that":[270],"are":[271],"locally":[272],"available":[273],"can":[277],"be":[278],"alternative":[279],"increase":[284],"Journal":[291],"Agriculture,":[293],"Science":[294],"Technology":[296],"Vol.4(1)":[297],"2002:":[298],"38-51":[299]},"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-10-30T12:39:25.321706","created_date":"2016-06-24T00:00:00"}
