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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha : |
23/01/2023 |
Actualizado : |
07/03/2023 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
CARRACELAS, G.; GUILPART, N.; CASSMAN, K.G.; GRASSINI, P. |
Afiliación : |
JULIO GONZALO CARRACELAS GARRIDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NICOLÁS GUILPART, University of Nebraska-Lincoln, USA; Université Paris-Saclay, AgroParisTech, INRAE, UMR Agronomie, France.; KENNETH G. CASSMAN, University of Nebraska-Lincoln, USA; PATRICIO GRASSINI, University of Nebraska-Lincoln, USA. |
Título : |
Distinguishing between yield plateaus and yield ceilings: A case study of rice in Uruguay. |
Fecha de publicación : |
2023 |
Fuente / Imprenta : |
Field Crops Research, 2023, volume 292, number 108808. OPEN ACCESS. Doi: https://doi.org/10.1016/j.fcr.2023.108808 |
Páginas : |
8 p. |
DOI : |
10.1016/j.fcr.2023.108808 |
Idioma : |
Inglés |
Notas : |
Article history: Received 3 September 2022; Received in revised form 22 December 2022; Accepted 2 January 2023; Available online 13 January 2023.
Corresponding author. E-mail address: gcarracelas@inia.org.uy (G. Carracelas). |
Contenido : |
Rice yields in Uruguay have increased rapidly (159 kg-1 ha-1 y-1) between 1990 and 2013. There is evidence, however, of an incipient yield plateau in recent years. The aim of this study was to determine if the recent slowdown in yield gains is because average yield (Ya) has approached the yield potential (Yp) ceiling, which makes it increasingly difficult for farmers to sustain further yield gains. We followed the methodology developed by the Global Yield Gap Atlas to estimate Yp and associated yield gaps for irrigated rice supported by data from high-yield experiments to calibrate the rice simulation model Oryza (v3). Subsequently, the model was used to simulate Yp using long-term daily weather data from seven locations, representing 90 % of total rice area in Uruguay. The exploitable yield gap (Yeg) was calculated as the difference between 80 % of Yp and Ya. Estimated national average Yp was 13.9 Mg ha?1, with relatively small variation across sites, from 13.1 to 15.1 Mg ha-1. Average Ya was 8.3 Mg ha-1, ranging from 7.9 to 8.5 Mg ha-1 across sites, and representing 60 % of Yp. Our analysis suggests there is still room to further increase rice yields in Uruguay, because the Yeg is 2.8 Mg ha-1, which means the current yield plateau is not due to Ya approaching Yp, as has occurred in other high-yield irrigated rice systems in China and California, USA. The approach followed here can help determine whether yield plateaus are occurring due to a small Yeg or other factors. |
Palabras claves : |
ORYSA SATIVA; RICE; YIELD GAP; YIELD PLATEAU; YIELD POTENTIAL. |
Asunto categoría : |
F01 Cultivo |
URL : |
https://www.sciencedirect.com/sdfe/reader/pii/S0378429023000011/pdf
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Marc : |
LEADER 02481naa a2200253 a 4500 001 1063945 005 2023-03-07 008 2023 bl uuuu u00u1 u #d 024 7 $a10.1016/j.fcr.2023.108808$2DOI 100 1 $aCARRACELAS, G. 245 $aDistinguishing between yield plateaus and yield ceilings$bA case study of rice in Uruguay.$h[electronic resource] 260 $c2023 300 $a8 p. 500 $aArticle history: Received 3 September 2022; Received in revised form 22 December 2022; Accepted 2 January 2023; Available online 13 January 2023. Corresponding author. E-mail address: gcarracelas@inia.org.uy (G. Carracelas). 520 $aRice yields in Uruguay have increased rapidly (159 kg-1 ha-1 y-1) between 1990 and 2013. There is evidence, however, of an incipient yield plateau in recent years. The aim of this study was to determine if the recent slowdown in yield gains is because average yield (Ya) has approached the yield potential (Yp) ceiling, which makes it increasingly difficult for farmers to sustain further yield gains. We followed the methodology developed by the Global Yield Gap Atlas to estimate Yp and associated yield gaps for irrigated rice supported by data from high-yield experiments to calibrate the rice simulation model Oryza (v3). Subsequently, the model was used to simulate Yp using long-term daily weather data from seven locations, representing 90 % of total rice area in Uruguay. The exploitable yield gap (Yeg) was calculated as the difference between 80 % of Yp and Ya. Estimated national average Yp was 13.9 Mg ha?1, with relatively small variation across sites, from 13.1 to 15.1 Mg ha-1. Average Ya was 8.3 Mg ha-1, ranging from 7.9 to 8.5 Mg ha-1 across sites, and representing 60 % of Yp. Our analysis suggests there is still room to further increase rice yields in Uruguay, because the Yeg is 2.8 Mg ha-1, which means the current yield plateau is not due to Ya approaching Yp, as has occurred in other high-yield irrigated rice systems in China and California, USA. The approach followed here can help determine whether yield plateaus are occurring due to a small Yeg or other factors. 653 $aORYSA SATIVA 653 $aRICE 653 $aYIELD GAP 653 $aYIELD PLATEAU 653 $aYIELD POTENTIAL 700 1 $aGUILPART, N. 700 1 $aCASSMAN, K.G. 700 1 $aGRASSINI, P. 773 $tField Crops Research, 2023, volume 292, number 108808. OPEN ACCESS. Doi: https://doi.org/10.1016/j.fcr.2023.108808
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INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
Fecha actual : |
21/02/2014 |
Actualizado : |
01/06/2018 |
Tipo de producción científica : |
Documentos |
Autor : |
GIMÉNEZ, A.; CASTAÑO, J.P.; OLIVERA, L.; FUREST, J.M. |
Afiliación : |
AGUSTIN EDUARDO GIMÉNEZ FUREST, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE PEDRO CASTAÑO SANCHEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LAURA OLIVERA MC ALISTER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE MARIA FUREST CROCCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Algunas consideraciones sobre el clima, la producción agropecuaria y la toma de decisiones. |
Fecha de publicación : |
2004 |
Fuente / Imprenta : |
ln: Jornada Técnica (2004, La Estanzuela, Colonia, UY) Cultivos de verano. La Estanzuela: INIA, 2004. |
Páginas : |
p. 1-9. |
Serie : |
(INIA Serie Actividades de Difusión; 371). |
Idioma : |
Español |
Thesagro : |
CAMBIO CLIMÁTICO; CLIMA; PRONÓSTICO DEL TIEMPO. |
Asunto categoría : |
-- |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/396/1/112761060612161741.pdf
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Marc : |
LEADER 00667naa a2200205 a 4500 001 1048227 005 2018-06-01 008 2004 bl uuuu u00u1 u #d 100 1 $aGIMÉNEZ, A. 245 $aAlgunas consideraciones sobre el clima, la producción agropecuaria y la toma de decisiones. 260 $c2004 300 $ap. 1-9. 490 $a(INIA Serie Actividades de Difusión; 371). 650 $aCAMBIO CLIMÁTICO 650 $aCLIMA 650 $aPRONÓSTICO DEL TIEMPO 700 1 $aCASTAÑO, J.P. 700 1 $aOLIVERA, L. 700 1 $aFUREST, J.M. 773 $tln: Jornada Técnica (2004, La Estanzuela, Colonia, UY) Cultivos de verano. La Estanzuela: INIA, 2004.
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