Closing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysis

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cg.authorship.typesCGIAR single centreen
cg.contributor.affiliationBioversity International and the International Center for Tropical Agricultureen
cg.contributor.affiliationPontificia Universidad Javerianaen
cg.contributor.affiliationCGIAR Research Program on Climate Change, Agriculture and Food Securityen
cg.contributor.affiliationUniversity of Leedsen
cg.contributor.affiliationUniversidad del Valleen
cg.contributor.affiliationUniversity of Tokyoen
cg.contributor.crpClimate Change, Agriculture and Food Security
cg.coverage.countryColombia
cg.coverage.iso3166-alpha2CO
cg.coverage.regionAmericas
cg.coverage.regionSouth America
cg.coverage.regionLatin America and the Caribbean
cg.creator.identifierJulian Ramirez-Villegas: 0000-0002-8044-583X
cg.creator.identifierCamilo Barrios-Perez: 0000-0001-8332-8746
cg.creator.identifierOsana Bonilla-Findji: 0000-0002-6098-000X
cg.creator.identifierAndy Jarvis: 0000-0001-6543-0798
cg.identifier.doihttps://doi.org/10.15446/agron.colomb.v38n1.79470en
cg.isijournalISI Journalen
cg.issn2357-3732en
cg.issue1en
cg.journalAgronomía Colombianaen
cg.reviewStatusPeer Reviewen
cg.subject.alliancebiovciatCLIMATE CHANGEen
cg.subject.alliancebiovciatFOOD SECURITYen
cg.subject.alliancebiovciatRICEen
cg.volume38en
dc.contributor.authorArango Londoño, Daviden
dc.contributor.authorRamírez Villegas, Julián Armandoen
dc.contributor.authorBarrios Pérez, Camiloen
dc.contributor.authorBonilla Findji, Osanaen
dc.contributor.authorJarvis, Andyen
dc.contributor.authorUribe, Jorge Marioen
dc.date.accessioned2020-05-19T00:43:11Zen
dc.date.available2020-05-19T00:43:11Zen
dc.identifier.urihttps://hdl.handle.net/10568/108274
dc.titleClosing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysisen
dcterms.abstractRice is one of the most important crops in terms of harvested area and food security both globally and for Colombia. Improvement of technical efficiency levels in rice production in order to close yield gaps in a context in which rice demand increases, natural resources are depleted, and where there are growing expectations about both climate changes and trade agreements is likely the most important challenge that farmers confront. This research assessed the main management factors that limit both rice crop productivity and the likely drivers of non-optimal technical efficiency levels (a proxy for yield gaps). This study focused on both upland and irrigated direct seeding systems across a variety of environments in Colombia. Stochastic frontier models were used to integrate microeconomic theory and empirical regression analysis in conjunction with a large commercial rice production database developed by the Colombian rice growers’ federation (Fedearroz). A large variation was found in technical efficiency (from 40 to 95%) levels for both upland and irrigated systems, and major differences were obtained in the limiting factors of the two systems (e.g. seed availability, variety type, market accessibility, fertilizer type, and use rate). This suggests both substantial and varied opportunities for improvements in current technical efficiency levels. Across systems, the correct choice of variety was identified as a common key factor for maximizing yield for a particular environment. For upland systems optimal choices were F174 and F2000, whereas for irrigated rice F473 was found to produce the highest yield. Additionally, numerical analysis suggests a yield impact of ca. 0.18% for each 1% increase in the nitrogen application rate for upland systems. For irrigated rice, phosphorous rather than nitrogen application rates were found to be more important. Since our analysis is based on farm-scale commercial production data, we argue that once our results are brought to consensus with local extension agents, technicians and agronomists, then management recommendations for closing yield gaps can be used to improve rice productivity.en
dcterms.accessRightsOpen Access
dcterms.available2020-01-01
dcterms.bibliographicCitationArango-Londoño, D.; Ramírez-Villegas, J.; Barrios-Pérez, C.; Bonilla-Findji, O.; Jarvis, A.; Uribe, J.M.; 2020 Closing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysis. Agronomia Colombiana 38(1) 10 p. ISSN 2357-3732en
dcterms.extentp. 110-119en
dcterms.issued2020-03
dcterms.languageen
dcterms.licenseCC-BY-NC-SA-4.0
dcterms.publisherUniversidad Nacional de Colombiaen
dcterms.subjectmodelsen
dcterms.subjectmodelosen
dcterms.subjectfood securityen
dcterms.subjectseguridad alimentariaen
dcterms.subjectriceen
dcterms.subjectarrozen
dcterms.subjectdemanden
dcterms.subjectdemandaen
dcterms.subjectproduction functionsen
dcterms.subjectfunciones de la producciónen
dcterms.subjectefficiencyen
dcterms.subjecteficaciaen
dcterms.typeJournal Article

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