Closing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysis
Rice 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...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Universidad Nacional de Colombia
2020
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| Acceso en línea: | https://hdl.handle.net/10568/108274 |
| _version_ | 1855531915280384000 |
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| author | Arango Londoño, David Ramírez Villegas, Julián Armando Barrios Pérez, Camilo Bonilla Findji, Osana Jarvis, Andy Uribe, Jorge Mario |
| author_browse | Arango Londoño, David Barrios Pérez, Camilo Bonilla Findji, Osana Jarvis, Andy Ramírez Villegas, Julián Armando Uribe, Jorge Mario |
| author_facet | Arango Londoño, David Ramírez Villegas, Julián Armando Barrios Pérez, Camilo Bonilla Findji, Osana Jarvis, Andy Uribe, Jorge Mario |
| author_sort | Arango Londoño, David |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Rice 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. |
| format | Journal Article |
| id | CGSpace108274 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Universidad Nacional de Colombia |
| publisherStr | Universidad Nacional de Colombia |
| record_format | dspace |
| spelling | CGSpace1082742025-11-11T18:55:32Z Closing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysis Arango Londoño, David Ramírez Villegas, Julián Armando Barrios Pérez, Camilo Bonilla Findji, Osana Jarvis, Andy Uribe, Jorge Mario models modelos food security seguridad alimentaria rice arroz demand demanda production functions funciones de la producción efficiency eficacia Rice 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. 2020-03 2020-05-19T00:43:11Z 2020-05-19T00:43:11Z Journal Article https://hdl.handle.net/10568/108274 en Open Access application/pdf Universidad Nacional de Colombia Arango-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 2357-3732 |
| spellingShingle | models modelos food security seguridad alimentaria rice arroz demand demanda production functions funciones de la producción efficiency eficacia Arango Londoño, David Ramírez Villegas, Julián Armando Barrios Pérez, Camilo Bonilla Findji, Osana Jarvis, Andy Uribe, Jorge Mario Closing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysis |
| title | Closing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysis |
| title_full | Closing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysis |
| title_fullStr | Closing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysis |
| title_full_unstemmed | Closing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysis |
| title_short | Closing yield gaps in Colombian direct seeding rice systems: a stochastic frontier analysis |
| title_sort | closing yield gaps in colombian direct seeding rice systems a stochastic frontier analysis |
| topic | models modelos food security seguridad alimentaria rice arroz demand demanda production functions funciones de la producción efficiency eficacia |
| url | https://hdl.handle.net/10568/108274 |
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