{"id":"https://openalex.org/W1016739734","doi":null,"title":"Growth and yield of corn intercropped with giant ipil-ipil on a hillside.","display_name":"Growth and yield of corn intercropped with giant ipil-ipil on a hillside.","publication_year":1980,"publication_date":"1980-01-01","ids":{"openalex":"https://openalex.org/W1016739734","mag":"1016739734"},"language":"en","primary_location":{"id":"pmh:oai:doaj.org/article:6f4c22b8c888472ebab97166e19490a2","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/6f4c22b8c888472ebab97166e19490a2","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Annals of Tropical Research, Vol 2, Iss 1 (1980)","raw_type":"article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["doaj"],"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/A5032318695","display_name":"Jos\u00e9 M. de la Rosa Arranz","orcid":"https://orcid.org/0000-0003-2857-2345","observed_orcids":["https://orcid.org/0000-0003-2857-2345"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Jos\u00e9 M. de la Rosa Arranz","raw_affiliation_strings":[],"raw_orcid":"https://orcid.org/0000-0003-2857-2345","affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111401074","display_name":"Rebecco M. Santiago","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"R. M. Santiago","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5081457862","display_name":"Marylene Bagarinao Posas","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Marylene Bagarinao Posas","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"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":"2","issue":"1","first_page":"12","last_page":"19"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.9775000214576721,"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/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.9775000214576721,"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/T12310","display_name":"Crop Yield and Soil Fertility","score":0.015200000256299973,"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/T13009","display_name":"Agroforestry and silvopastoral systems","score":0.0024999999441206455,"subfield":{"id":"https://openalex.org/subfields/1107","display_name":"Forestry"},"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/maize","display_name":"maize","score":0.6990000009536743},{"id":"https://openalex.org/keywords/ipil-ipil","display_name":"ipil-ipil","score":0.8230000138282776},{"id":"https://openalex.org/keywords/acacia-mearnsii","display_name":"Acacia mearnsii","score":0.8230000138282776},{"id":"https://openalex.org/keywords/intercropping","display_name":"intercropping","score":0.9819999933242798},{"id":"https://openalex.org/keywords/grain-yield","display_name":"grain yield","score":0.7450000047683716},{"id":"https://openalex.org/keywords/ear-length","display_name":"ear length","score":0.550000011920929},{"id":"https://openalex.org/keywords/ear-diameter","display_name":"ear diameter","score":0.8679999709129333},{"id":"https://openalex.org/keywords/hillside-agriculture","display_name":"hillside agriculture","score":0.6140000224113464},{"id":"https://openalex.org/keywords/soil-erosion","display_name":"soil erosion","score":0.8080000281333923},{"id":"https://openalex.org/keywords/plant-population","display_name":"plant population","score":0.5989999771118164},{"id":"https://openalex.org/keywords/tasseling","display_name":"tasseling","score":0.48399999737739563}],"concepts":[{"id":"https://openalex.org/C134121241","wikidata":"https://www.wikidata.org/wiki/Q899301","display_name":"Yield (engineering)","level":2,"score":0.6518482565879822},{"id":"https://openalex.org/C39432304","wikidata":"https://www.wikidata.org/wiki/Q188847","display_name":"Environmental science","level":0,"score":0.5023937225341797},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.4056563675403595},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.14500901103019714},{"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}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:doaj.org/article:6f4c22b8c888472ebab97166e19490a2","doi":null,"is_oa":false,"landing_page_url":"https://doaj.org/article/6f4c22b8c888472ebab97166e19490a2","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","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":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Annals of Tropical Research, Vol 2, Iss 1 (1980)","raw_type":"article"},{"id":"mag:1016739734","doi":null,"is_oa":false,"landing_page_url":"https://www.cabdirect.org/abstracts/19800712713.html","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/2","score":1.0,"display_name":"Zero hunger"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W987952986","https://openalex.org/W7084254175","https://openalex.org/W806640479","https://openalex.org/W2222930016","https://openalex.org/W2393998458","https://openalex.org/W2265040520","https://openalex.org/W2371598287","https://openalex.org/W2380198372","https://openalex.org/W4384458009","https://openalex.org/W2364833389"],"abstract_inverted_index":{"Ipil-ipil":[0],"intercrop":[1],"significantly":[2,36,68],"enhanced":[3],"the":[4,71,89,105,113,125,132,148],"maturity":[5],"of":[6,27,58,65,94,134,157],"corn":[7,107],"plants":[8,47,135],"and":[9,15,31,44,53,61,108,120,145,152,182],"increased":[10],"ear":[11,13,24],"length,":[12],"diameter,":[14],"grain":[16,82,96],"yield":[17,83,161],"per":[18,29,48,84],"plant.":[19],"However,":[20,147],"tasseling,":[21],"plant":[22,85,116],"height,":[23,25],"number":[26,133],"ears":[28,122],"plant,":[30],"shelling":[32],"percentage":[33],"were":[34,67,102,129],"not":[35],"affected.":[37],"Corn":[38],"plots":[39,110],"intercropped":[40,106],"with":[41],"10,":[42],"15,":[43],"20":[45],"ipil-ipil":[46,90],"linear":[49],"meter":[50],"(T1,":[51],"T2,":[52,144,181],"T3)":[54],"gave":[55],"computed":[56],"yields":[57,149],"69.9,":[59],"73.4,":[60],"7.0":[62],"g/plant,":[63],"all":[64],"which":[66,75,136],"higher":[69],"than":[70,178],"control":[72,109,126],"plot":[73,127],"(To)":[74,128],"yielded":[76],"48.5":[77],"g/plant.":[78],"This":[79],"indicated":[80],"that":[81,156],"was":[86,137,163,174],"improved":[87],"by":[88,131],"intercrop.":[91],"In":[92],"terms":[93],"total":[95],"yield,":[97],"however,":[98],"no":[99],"marked":[100],"differences":[101,114],"observed":[103],"between":[104],"due":[111],"to":[112],"in":[115,124,142,150,176,179],"population.":[117],"The":[118,159],"smaller":[119],"shorter":[121],"obtained":[123,162],"compensated":[130],"twice":[138],"as":[139,141],"many":[140],"T1,":[143,180],"T3.":[146,183],"T2":[151],"T3":[153],"exceeded":[154],"slightly":[155],"To.":[158],"average":[160],"49.52":[164],"cavans":[165],"or":[166],"2.77":[167],"t/ha.":[168],"Hill":[169],"erosion":[170],"during":[171],"heavy":[172],"rains":[173],"greater":[175],"To":[177]},"counts_by_year":[],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}
