{"id":"https://openalex.org/W2004392025","doi":"https://doi.org/10.1017/s0021859605005563","title":"Resource competition in contour hedgerow intercropping systems involving different shrub species with mature and young tea on sloping highlands in Sri Lanka","display_name":"Resource competition in contour hedgerow intercropping systems involving different shrub species with mature and young tea on sloping highlands in Sri Lanka","publication_year":2005,"publication_date":"2005-09-30","ids":{"openalex":"https://openalex.org/W2004392025","doi":"https://doi.org/10.1017/s0021859605005563","mag":"2004392025"},"language":"en","primary_location":{"id":"doi:10.1017/s0021859605005563","doi":"https://doi.org/10.1017/s0021859605005563","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s0021859605005563","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/A5073711300","display_name":"W. A. J. M. De Costa","orcid":"https://orcid.org/0000-0003-1923-0992","observed_orcids":["https://orcid.org/0000-0003-1923-0992"]},"institutions":[{"id":"https://openalex.org/I111199411","display_name":"University of Peradeniya","ror":"https://ror.org/025h79t26","country_code":"LK","type":"education","lineage":["https://openalex.org/I111199411"]},{"id":"https://openalex.org/I200763008","display_name":"Justus-Liebig-Universit\u00e4t Gie\u00dfen","ror":"https://ror.org/033eqas34","country_code":"DE","type":"education","lineage":["https://openalex.org/I200763008"]}],"countries":["DE","LK"],"is_corresponding":false,"raw_author_name":"W. A. J. M. DE COSTA","raw_affiliation_strings":["Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka","Present address (until 20.12.05): Institut fur Pflanzenernaehrung, Interdisziplinares Forschungszentrum (IFZ), Justus-Liebig-Universitat, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka","institution_ids":["https://openalex.org/I111199411"]},{"raw_affiliation_string":"Present address (until 20.12.05): Institut fur Pflanzenernaehrung, Interdisziplinares Forschungszentrum (IFZ), Justus-Liebig-Universitat, Heinrich-Buff-Ring 26-32, 35392 Giessen, Germany","institution_ids":["https://openalex.org/I200763008"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5058519328","display_name":"P. Surenthran","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I111199411","display_name":"University of Peradeniya","ror":"https://ror.org/025h79t26","country_code":"LK","type":"education","lineage":["https://openalex.org/I111199411"]}],"countries":["LK"],"is_corresponding":false,"raw_author_name":"P. SURENTHRAN","raw_affiliation_strings":["Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka","institution_ids":["https://openalex.org/I111199411"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":3550,"currency":"USD","value_usd":3550},"apc_paid":null,"fwci":1.4797,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.83373165,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":87,"max":95},"biblio":{"volume":"143","issue":"5","first_page":"395","last_page":"405"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13009","display_name":"Agroforestry and silvopastoral systems","score":0.9854000210762024,"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"}},"topics":[{"id":"https://openalex.org/T13009","display_name":"Agroforestry and silvopastoral systems","score":0.9854000210762024,"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"}},{"id":"https://openalex.org/T12436","display_name":"Agronomic Practices and Intercropping Systems","score":0.014100000262260437,"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/T12630","display_name":"African Botany and Ecology Studies","score":9.999999747378752e-05,"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/tea","display_name":"tea","score":0.5210000276565552},{"id":"https://openalex.org/keywords/camellia-sinensis","display_name":"Camellia sinensis","score":0.9070000052452087},{"id":"https://openalex.org/keywords/contour-hedgerows","display_name":"contour hedgerows","score":0.8930000066757202},{"id":"https://openalex.org/keywords/resource-competition","display_name":"resource competition","score":0.9649999737739563},{"id":"https://openalex.org/keywords/tea-yield","display_name":"tea yield","score":0.7360000014305115},{"id":"https://openalex.org/keywords/root-competition","display_name":"root competition","score":0.5619999766349792},{"id":"https://openalex.org/keywords/calliandra-calothyrsus","display_name":"Calliandra calothyrsus","score":0.8109999895095825},{"id":"https://openalex.org/keywords/senna-spectabilis","display_name":"Senna spectabilis","score":0.8980000019073486},{"id":"https://openalex.org/keywords/gliricidia-sepium","display_name":"Gliricidia sepium","score":0.9990000128746033},{"id":"https://openalex.org/keywords/tithonia-diversifolia","display_name":"Tithonia diversifolia","score":0.9980000257492065},{"id":"https://openalex.org/keywords/soil-phosphorus","display_name":"soil phosphorus","score":0.7039999961853027},{"id":"https://openalex.org/keywords/soil-organic-carbon","display_name":"soil organic carbon","score":0.45399999618530273},{"id":"https://openalex.org/keywords/soil-nitrogen","display_name":"soil nitrogen","score":0.4090000092983246},{"id":"https://openalex.org/keywords/soil-fertility","display_name":"soil fertility","score":0.671999990940094},{"id":"https://openalex.org/keywords/competitive-ability","display_name":"competitive ability","score":0.503000020980835}],"concepts":[{"id":"https://openalex.org/C2781208722","wikidata":"https://www.wikidata.org/wiki/Q853859","display_name":"Intercropping","level":2,"score":0.8475828170776367},{"id":"https://openalex.org/C175092762","wikidata":"https://www.wikidata.org/wiki/Q549563","display_name":"Mulch","level":2,"score":0.6999574899673462},{"id":"https://openalex.org/C2778268778","wikidata":"https://www.wikidata.org/wiki/Q2717303","display_name":"Gliricidia sepium","level":2,"score":0.6081107258796692},{"id":"https://openalex.org/C91306197","wikidata":"https://www.wikidata.org/wiki/Q45767","display_name":"Competition (biology)","level":2,"score":0.5646046996116638},{"id":"https://openalex.org/C2992816389","wikidata":"https://www.wikidata.org/wiki/Q101815","display_name":"Camellia sinensis","level":2,"score":0.5573394894599915},{"id":"https://openalex.org/C6557445","wikidata":"https://www.wikidata.org/wiki/Q173113","display_name":"Agronomy","level":1,"score":0.5293444395065308},{"id":"https://openalex.org/C2777538795","wikidata":"https://www.wikidata.org/wiki/Q136941","display_name":"Tithonia","level":2,"score":0.507323682308197},{"id":"https://openalex.org/C2778091200","wikidata":"https://www.wikidata.org/wiki/Q42295","display_name":"Shrub","level":2,"score":0.48905834555625916},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.44039663672447205},{"id":"https://openalex.org/C54286561","wikidata":"https://www.wikidata.org/wiki/Q397350","display_name":"Agroforestry","level":1,"score":0.3519465923309326},{"id":"https://openalex.org/C144027150","wikidata":"https://www.wikidata.org/wiki/Q48803","display_name":"Horticulture","level":1,"score":0.33810511231422424},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.31310975551605225},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.09482800960540771}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1017/s0021859605005563","doi":"https://doi.org/10.1017/s0021859605005563","is_oa":false,"landing_page_url":"https://doi.org/10.1017/s0021859605005563","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":1.0,"id":"https://metadata.un.org/sdg/15","display_name":"Life on land"},{"score":0.7142999768257141,"id":"https://metadata.un.org/sdg/2","display_name":"Zero hunger"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":22,"referenced_works":["https://openalex.org/W99504326","https://openalex.org/W301141107","https://openalex.org/W1488559650","https://openalex.org/W1499672430","https://openalex.org/W1994284200","https://openalex.org/W1998090095","https://openalex.org/W2008084624","https://openalex.org/W2012964302","https://openalex.org/W2018189929","https://openalex.org/W2066291722","https://openalex.org/W2070957015","https://openalex.org/W2122741661","https://openalex.org/W2126593282","https://openalex.org/W2129209055","https://openalex.org/W2134930674","https://openalex.org/W2154487760","https://openalex.org/W2157681597","https://openalex.org/W2161395744","https://openalex.org/W2260187341","https://openalex.org/W2262664602","https://openalex.org/W2563996568","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W2011920188","https://openalex.org/W2006740918","https://openalex.org/W1546377540","https://openalex.org/W793849958","https://openalex.org/W7096830370","https://openalex.org/W2479813852","https://openalex.org/W1990557202","https://openalex.org/W2055030093","https://openalex.org/W2000393571","https://openalex.org/W7046511707"],"abstract_inverted_index":{"Tea":[0,256,301],"(Camellia":[1],"sinensis)":[2],"in":[3,143,213,270,274,364,372,404],"Sri":[4],"Lanka":[5],"is":[6,18,357,387],"grown":[7],"predominantly":[8],"on":[9,77,126,140,151,158,171],"sloping":[10],"highlands.":[11],"Incorporating":[12],"trees":[13],"as":[14,31,121,134,242],"hedgerows":[15,45,180,363],"along":[16],"contours":[17],"aimed":[19],"at":[20],"reducing":[21],"erosion":[22],"and":[23,46,74,80,109,124,181,222,251,264,296,330,378,399],"improving":[24],"soil":[25],"fertility":[26],"through":[27,397],"addition":[28],"of":[29,51,59,166,189,216,229,239,248,258,299,303,317,335,342,361,391],"prunings":[30,115,241],"mulch.":[32],"However,":[33,385],"there":[34,386],"could":[35,370],"be":[36],"significant":[37,209,289,307,373],"competition":[38,150,170,211,231,375,396],"for":[39,389],"essential":[40],"growth":[41],"resources":[42],"between":[43,179,293],"the":[44,57,105,118,164,194,214,278,338],"tea.":[47,83,160,182],"The":[48,136],"primary":[49],"objective":[50],"this":[52],"study":[53,85],"was":[54,138,154,280,287,347],"to":[55,93,117,146,349,353,365,383],"determine":[56,147],"influence":[58],"six":[60,106],"hedgerow":[61,114,190,218,240,259,284,312,323,336,392],"species":[62,108,393],"(Calliandra":[63],"calothyrsus,":[64],"Senna":[65],"[Cassia]":[66],"spectabilis,":[67],"Eupatorium":[68,221,265],"inulifolium,":[69],"Flemingia":[70,263],"congesta,":[71],"Gliricidia":[72],"sepium":[73],"Tithonia":[75],"diversifolia)":[76],"mature":[78,127,159,223,250,275],"(6-year-old)":[79],"young":[81,141,152,252,271],"(6-month-old)":[82],"This":[84],"had":[86,100],"three":[87],"on-farm,":[88],"long-term":[89],"(from":[90],"Nov":[91],"1998":[92],"Dec":[94],"2002)":[95],"field":[96],"experiments.":[97],"Experiment":[98,144,161],"1":[99],"12":[101],"treatment":[102],"combinations":[103],"with":[104,261,282,310,376,402],"shrub":[107],"two":[110],"mulching":[111],"treatments":[112],"(i.e.":[113],"added":[116],"tea":[119,128,132,142,153,172,187,205,224,234,253,272,294,368,377,381,403],"plot":[120],"a":[122,130,175,243,288,333],"mulch,":[123],"unmulched)":[125],"plus":[129],"sole":[131,204,354],"crop":[133,369],"control.":[135],"same":[137],"repeated":[139],"2":[145],"whether":[148],"resource":[149,210,374,405],"greater":[155,267],"than":[156,203,273],"that":[157,359,394],"3":[162],"examined":[163],"effects":[165],"removing":[167],"tree":[168],"root":[169,324],"by":[173,236,254],"cutting":[174],"1-m":[176],"deep":[177],"trench":[178],"In":[183,332],"all":[184,304],"experiments,":[185],"total":[186],"yields":[188,235,247,257,302],"intercrops,":[191],"cumulated":[192],"over":[193],"50-month":[195],"experimental":[196],"period,":[197],"were":[198],"significantly":[199,232,245],"lower":[200,351],"(by":[201],"3\u201350%)":[202],"crops,":[206],"thus":[207],"indicating":[208],"except":[212],"case":[215],"mulched":[217],"systems":[219,260],"involving":[220],"(18%":[225],"yield":[226,268,295,382],"increase).":[227],"Removal":[228],"below-ground":[230],"increased":[233,246],"11\u201319%.":[237],"Addition":[238],"mulch":[244],"both":[249],"13\u201321%.":[255],"Calliandra,":[262],"showed":[266,306],"reductions":[269],"tea,":[276],"but":[277],"opposite":[279],"shown":[281],"other":[283],"species.":[285],"There":[286],"negative":[290,308],"linear":[291],"relationship":[292],"pruned":[297],"biomass":[298],"hedgerows.":[300],"experiments":[305],"correlations":[309],"several":[311],"characters,":[313],"which":[314],"are":[315],"indicators":[316],"their":[318],"competitive":[319],"ability.":[320],"These":[321],"included":[322],"density,":[325],"canopy":[326],"lateral":[327],"spread,":[328],"height":[329],"cross-section.":[331],"majority":[334],"systems,":[337],"available":[339],"phosphorus":[340],"content":[341],"topsoil":[343],"(0\u201320":[344],"cm":[345],"depth)":[346],"up":[348],"51%":[350],"compared":[352],"crops.":[355],"It":[356],"concluded":[358],"incorporation":[360],"contour":[362],"an":[366],"existing":[367],"result":[371],"thereby":[379],"cause":[380],"decrease.":[384],"scope":[388],"selection":[390],"minimize":[395],"spatial":[398],"temporal":[400],"complementarity":[401],"capture.":[406]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-10-13T10:08:12.033832","created_date":"2016-06-24T00:00:00"}
