{"id":"https://openalex.org/W3174812640","doi":"https://doi.org/10.7176/jnsr/12-10-03","title":"Effect of NPSZn and Nitrogen Rates on Yield and Yield Components of Maize (Zea mays L) in Eastern Hararghe, Ethiopia","display_name":"Effect of NPSZn and Nitrogen Rates on Yield and Yield Components of Maize (Zea mays L) in Eastern Hararghe, Ethiopia","publication_year":2021,"publication_date":"2021-05-01","ids":{"openalex":"https://openalex.org/W3174812640","doi":"https://doi.org/10.7176/jnsr/12-10-03","mag":"3174812640"},"language":"en","primary_location":{"id":"doi:10.7176/jnsr/12-10-03","doi":"https://doi.org/10.7176/jnsr/12-10-03","is_oa":true,"landing_page_url":"https://doi.org/10.7176/jnsr/12-10-03","pdf_url":"https://iiste.org/Journals/index.php/JNSR/article/download/56410/58251","source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Natural Sciences Research","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","datacite"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://iiste.org/Journals/index.php/JNSR/article/download/56410/58251","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5093526065","display_name":"Jifara Gudeta","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4405255270","display_name":"Oromia Agricultural Research Institute","ror":"https://ror.org/02t5r1875","country_code":"ET","type":"government","lineage":["https://openalex.org/I4405255270"]}],"countries":["ET"],"is_corresponding":true,"raw_author_name":"Jifara Gudeta","raw_affiliation_strings":["Oromia Agricultural Research Institute (IQQO) ; Fadis Agricultural research center , P.O.Box=904 , Harar , Ethiopia","Agricultural Research Institute (IQQO); Fadis Agricultural research center, P.O.Box=904, Harar, Ethiopia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Oromia Agricultural Research Institute (IQQO) ; Fadis Agricultural research center , P.O.Box=904 , Harar , Ethiopia","institution_ids":["https://openalex.org/I4405255270"]},{"raw_affiliation_string":"Agricultural Research Institute (IQQO); Fadis Agricultural research center, P.O.Box=904, Harar, Ethiopia","institution_ids":["https://openalex.org/I4405255270"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5093526065"],"corresponding_institution_ids":["https://openalex.org/I4405255270"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"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":null,"issue":null,"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":0.5005000233650208,"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":0.5005000233650208,"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/T12310","display_name":"Crop Yield and Soil Fertility","score":0.49390000104904175,"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/T11418","display_name":"Plant Micronutrient Interactions and Effects","score":0.0032999999821186066,"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/zinc-fertilizer","display_name":"zinc fertilizer","score":0.6269999742507935},{"id":"https://openalex.org/keywords/nitrogen-fertilization","display_name":"nitrogen fertilization","score":0.9259999990463257},{"id":"https://openalex.org/keywords/maize","display_name":"maize","score":0.7829999923706055},{"id":"https://openalex.org/keywords/grain-yield","display_name":"grain yield","score":0.843999981880188},{"id":"https://openalex.org/keywords/yield-components","display_name":"yield components","score":1.0},{"id":"https://openalex.org/keywords/fertilizer-dose","display_name":"fertilizer dose","score":0.5799999833106995},{"id":"https://openalex.org/keywords/marginal-rate-of-return","display_name":"marginal rate of return","score":0.8610000014305115},{"id":"https://openalex.org/keywords/partial-budget-analysis","display_name":"partial budget analysis","score":0.906000018119812},{"id":"https://openalex.org/keywords/soil-fertility","display_name":"soil fertility","score":0.5609999895095825},{"id":"https://openalex.org/keywords/crop-nutrition-management","display_name":"crop nutrition management","score":0.8169999718666077},{"id":"https://openalex.org/keywords/combined-fertilizer-application","display_name":"combined fertilizer application","score":0.4950000047683716},{"id":"https://openalex.org/keywords/economic-efficiency-of-fertilization","display_name":"economic efficiency of fertilization","score":0.5649999976158142},{"id":"https://openalex.org/keywords/smallholder-farmers","display_name":"smallholder farmers","score":0.4950000047683716}],"concepts":[{"id":"https://openalex.org/C142796444","wikidata":"https://www.wikidata.org/wiki/Q181394","display_name":"Nutrient","level":2,"score":0.7302650809288025},{"id":"https://openalex.org/C2993531722","wikidata":"https://www.wikidata.org/wiki/Q11575","display_name":"Zea mays","level":2,"score":0.6570078134536743},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.6395791172981262},{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.6392620205879211},{"id":"https://openalex.org/C2992211155","wikidata":"https://www.wikidata.org/wiki/Q889514","display_name":"Grain yield","level":2,"score":0.6007765531539917},{"id":"https://openalex.org/C537208039","wikidata":"https://www.wikidata.org/wiki/Q627","display_name":"Nitrogen","level":2,"score":0.5838896036148071},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5116961002349854},{"id":"https://openalex.org/C137580998","wikidata":"https://www.wikidata.org/wiki/Q235352","display_name":"Crop","level":2,"score":0.505115807056427},{"id":"https://openalex.org/C2780560099","wikidata":"https://www.wikidata.org/wiki/Q83323","display_name":"Fertilizer","level":2,"score":0.4865833520889282},{"id":"https://openalex.org/C38774213","wikidata":"https://www.wikidata.org/wiki/Q202080","display_name":"Soil fertility","level":3,"score":0.4627290964126587},{"id":"https://openalex.org/C204983608","wikidata":"https://www.wikidata.org/wiki/Q2111958","display_name":"Productivity","level":2,"score":0.4566570520401001},{"id":"https://openalex.org/C140793950","wikidata":"https://www.wikidata.org/wiki/Q168091","display_name":"Animal science","level":1,"score":0.3474581837654114},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.331145316362381},{"id":"https://openalex.org/C159750122","wikidata":"https://www.wikidata.org/wiki/Q96621023","display_name":"Soil water","level":2,"score":0.2538866400718689},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.12513038516044617},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.04411393404006958},{"id":"https://openalex.org/C139719470","wikidata":"https://www.wikidata.org/wiki/Q39680","display_name":"Macroeconomics","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","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/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.0},{"id":"https://openalex.org/C178790620","wikidata":"https://www.wikidata.org/wiki/Q11351","display_name":"Organic chemistry","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.7176/jnsr/12-10-03","doi":"https://doi.org/10.7176/jnsr/12-10-03","is_oa":true,"landing_page_url":"https://doi.org/10.7176/jnsr/12-10-03","pdf_url":"https://iiste.org/Journals/index.php/JNSR/article/download/56410/58251","source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Natural Sciences Research","raw_type":"journal-article"},{"id":"pmh:oai:ojs.localhost:article/56410","doi":null,"is_oa":true,"landing_page_url":"https://iiste.org/Journals/index.php/JNSR/article/view/56410","pdf_url":null,"source":{"id":"https://openalex.org/S4306401197","display_name":"Journals & Books Hosting (International Knowledge Sharing Platform)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of Natural Sciences Research; Vol 12, No 10 (2021); 26-34","raw_type":"info:eu-repo/semantics/article"},{"id":"doi:10.60692/ewd3e-1j849","doi":"https://doi.org/10.60692/ewd3e-1j849","is_oa":true,"landing_page_url":"https://doi.org/10.60692/ewd3e-1j849","pdf_url":null,"source":{"id":"https://openalex.org/S7407051682","display_name":"Greater South Information System","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article-journal"},{"id":"doi:10.60692/fa098-w0769","doi":"https://doi.org/10.60692/fa098-w0769","is_oa":true,"landing_page_url":"https://doi.org/10.60692/fa098-w0769","pdf_url":null,"source":{"id":"https://openalex.org/S7407051682","display_name":"Greater South Information System","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article-journal"}],"best_oa_location":{"id":"doi:10.7176/jnsr/12-10-03","doi":"https://doi.org/10.7176/jnsr/12-10-03","is_oa":true,"landing_page_url":"https://doi.org/10.7176/jnsr/12-10-03","pdf_url":"https://iiste.org/Journals/index.php/JNSR/article/download/56410/58251","source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Natural Sciences 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/W3174812640.pdf","grobid_xml":"https://content.openalex.org/works/W3174812640.grobid-xml"},"referenced_works_count":14,"referenced_works":["https://openalex.org/W226760267","https://openalex.org/W1972716953","https://openalex.org/W2083522322","https://openalex.org/W2089065863","https://openalex.org/W2116749397","https://openalex.org/W2151776196","https://openalex.org/W2158158142","https://openalex.org/W2186037085","https://openalex.org/W2187438411","https://openalex.org/W2202410033","https://openalex.org/W2257083401","https://openalex.org/W2511593414","https://openalex.org/W3182953551","https://openalex.org/W4388311059"],"related_works":["https://openalex.org/W3033367918","https://openalex.org/W3111373837","https://openalex.org/W3190029731","https://openalex.org/W4300866628","https://openalex.org/W2990910440","https://openalex.org/W7155211750","https://openalex.org/W3119241172","https://openalex.org/W3137475776","https://openalex.org/W7155005024","https://openalex.org/W7219519939"],"abstract_inverted_index":{"Maize":[0,326],"(Zea":[1],"mays":[2],"L)":[3],"cannot":[4],"produce":[5],"maximum":[6],"yields":[7],"unless":[8],"sufficient":[9,58],"nutrients":[10,59,67],"are":[11,14,20,41,68],"available.":[12],"There":[13],"a":[15],"number":[16],"of":[17,28,50,65,77,84,94,99,113,126,161,182,239,249,258,282],"factors":[18,45],"which":[19,177],"responsible":[21,46],"for":[22,47,60,89,133,300],"the":[23,42,53,75,80,124,134,192,231,245,255,279,296],"low":[24,48],"production":[25],"and":[26,37,86,91,103,117,170,217,299,309],"productivity":[27],"maize.":[29,51,95],"Among":[30],"these":[31],"factors,":[32],"inappropriate":[33],"crop":[34],"nutrition":[35],"management":[36],"poor":[38],"soil":[39,54],"fertility":[40],"most":[43],"important":[44],"yield":[49,90,92,150,195,211],"When":[52],"does":[55],"not":[56],"supply":[57],"normal":[61],"plant":[62],"growth,":[63],"application":[64,82,160,181,234,257,281],"supplemental":[66],"required.":[69],"The":[70,96,147,208,237],"activity":[71],"was":[72,156,201,225,252],"done":[73],"with":[74,110,144,165,186,230,262,286],"objective":[76],"to":[78,313],"determine":[79],"optimum":[81,308],"rate":[83,248],"NPSZn":[85,100,164,185,261,285],"Nitrogen":[87],"fertilizers":[88],"components":[93],"three":[97,111,145],"levels":[98,312],"(75,":[101],"100,":[102],"125)":[104],"kg":[105,119,152,163,167,175,184,188,197,213,221,260,264,284,288],"ha":[106,120,153,168,189,198,214,222,266,290],"-1":[107,121,154,169,190,199,215,267,291],"were":[108,131,138],"combined":[109,159,180,256,280],"level":[112],"N":[114,127,233,265,289],"(21.2,":[115],"28.3,":[116],"35.4)":[118],"after":[122],"deducting":[123],"amount":[125],"found":[128],"in":[129,141,295],"NPSZN":[130],"used":[132],"field":[135],"experiments.":[136],"Treatments":[137],"laid":[139],"out":[140],"RCBD":[142],"design":[143],"replications.":[146],"highest":[148,209],"grain":[149,194,210],"(4359":[151,212],")":[155,200,216,224],"obtained":[157,178,202,226,253],"from":[158,179,203,227,254],"75":[162],"28.3":[166],"nearly":[171,218],"followed":[172,219],"by":[173],"(4348":[174,220],"ha\u22121)":[176],"100":[183,259,283],"35.4":[187,263,287],"whereas":[191],"lowest":[193],"(2475":[196],"plots":[204,228],"treated":[205],"without":[206],"fertilizer.":[207],"\u22121":[223],"fertilized":[229],"higher":[232,246],"(35.4":[235],"kg).":[236],"result":[238,273],"partial":[240],"budget":[241],"analysis":[242],"suggested":[243],"that":[244,278],"marginal":[247],"return":[250],"(12822.71%)":[251],".":[268],"Therefore,":[269],"based":[270],"on":[271],"this":[272],"it":[274,304],"can":[275,292,305],"be":[276,293,306],"concluded":[277],"recommended":[294],"study":[297],"areas":[298],"other":[301],"similar":[302],"agro-ecologies":[303],"agronomically":[307],"economically":[310],"affordable":[311],"increase":[314],"improved":[315],"maize":[316],"production.":[317],"Keywords:":[318],"NPSZn,":[319],"Nitrogen,":[320],"Fertilizer":[321],"rate,":[322],"Yield,":[323],"Yield":[324],"components,":[325],"DOI:":[327],"10.7176/JNSR/12-10-03":[328],"Publication":[329],"date:":[330],"May":[331],"31":[332],"st":[333],"2021":[334]},"counts_by_year":[],"updated_date":"2026-10-27T15:51:10.671819","created_date":"2021-07-05T00:00:00"}
