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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
23/01/2023 |
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Actualizado : |
07/03/2023 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
CARRACELAS, G.; GUILPART, N.; CASSMAN, K.G.; GRASSINI, P. |
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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. |
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Título : |
Distinguishing between yield plateaus and yield ceilings: A case study of rice in Uruguay. |
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Fecha de publicación : |
2023 |
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Fuente / Imprenta : |
Field Crops Research, 2023, volume 292, number 108808. OPEN ACCESS. Doi: https://doi.org/10.1016/j.fcr.2023.108808 |
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Páginas : |
8 p. |
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DOI : |
10.1016/j.fcr.2023.108808 |
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Idioma : |
Inglés |
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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). |
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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. |
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Palabras claves : |
ORYSA SATIVA; RICE; YIELD GAP; YIELD PLATEAU; YIELD POTENTIAL. |
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Asunto categoría : |
F01 Cultivo |
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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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Registro original : |
INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
31/08/2017 |
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Autor : |
RUBIO, L.; PÉREZ, E.; BUENAHORA, J.; OTERO, A.; ZEFFERINO, E. |
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Afiliación : |
LETICIA PAOLA RUBIO CATTANI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSE HERMES BUENAHORA ACOSTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALVARO RICARDO OTERO CAMA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Avances de resultados en protección vegetal citrícola. |
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Fecha de publicación : |
2013 |
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Fuente / Imprenta : |
Salto (Uruguay): INIA, 2013. |
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Páginas : |
37 p. |
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Idioma : |
Español |
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Thesagro : |
ALTERNARIA ALTERNATA; ANASTREPHA FRATERCULUS; CERATITIS CAPITATA; CITRUS; CONTROL DE PLAGAS; ENFERMEDADES DE LAS PLANTAS; PROTECCIÓN DE LAS PLANTAS. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 00655nam a2200241 a 4500
001 1020033
005 2017-08-31
008 2013 bl uuuu u00u1 u #d
100 1 $aRUBIO, L.
245 $aAvances de resultados en protección vegetal citrícola.
260 $aSalto (Uruguay): INIA$c2013
300 $a37 p.
650 $aALTERNARIA ALTERNATA
650 $aANASTREPHA FRATERCULUS
650 $aCERATITIS CAPITATA
650 $aCITRUS
650 $aCONTROL DE PLAGAS
650 $aENFERMEDADES DE LAS PLANTAS
650 $aPROTECCIÓN DE LAS PLANTAS
700 1 $aPÉREZ, E.
700 1 $aBUENAHORA, J.
700 1 $aOTERO, A.
700 1 $aZEFFERINO, E.
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INIA Tacuarembó (TBO) |
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