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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
21/02/2014 |
Actualizado : |
18/05/2018 |
Tipo de producción científica : |
Documentos |
Autor : |
GANZÁBAL, A.; FERNÁNDEZ, D.; BELTRÁN, N. |
Afiliación : |
Uruguay. Ministerio de Ganadería, Agricultura y Pesca (MGAP); Centro de Investigaciones Agrícolas ""Alberto Boerger"" (CIAAB). Estación Experimental La Estanzuela; Uruguay. Ministerio de Ganadería, Agricultura y Pesca (MGAP); Centro de Investigaciones Agrícolas ""Alberto Boerger"" (CIAAB). Estación Experimental La Estanzuela; Uruguay. Ministerio de Ganadería, Agricultura y Pesca (MGAP); Centro de Investigaciones Agrícolas ""Alberto Boerger"" (CIAAB). Estación Experimental La Estanzuela. |
Título : |
Efecto del abrigo en la parición sobre la mortalidad de corderos (III). |
Fecha de publicación : |
1989 |
Fuente / Imprenta : |
Montevideo (Uruguay): CIAAB, 1989. |
Páginas : |
2 p. |
Serie : |
(CIAAB, Hoja de Divulgación; 88) |
Idioma : |
Español |
Contenido : |
El conjunto de trabajos conducidos en la Unidad Experimental de Ovinos de la Estación Experimental La Estanzuela, basan su esfuerzo en el estudio de la problemática
asociada a los sistemas intensivos de producción lanar. La mortalidad neonatal de corderos que es uno de los mayores problemas que afecta a la producción ovina
nacional tiene también una incidencia importante sobre este tipo de sistemas de avanzada a pesar de desarrollarse sobre pasturas mejoradas de alta calidad y productividad y de aplicarse todas las prácticas de manejo aconsejadas. |
Palabras claves : |
ABRIGO; MORTALIDAD DE CORDEROS. |
Thesagro : |
MORTALIDAD; OVINOS; REPRODUCTIVIDAD. |
Asunto categoría : |
L01 Ganadería |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/6182/1/CIAAB-HD-88.pdf
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Marc : |
LEADER 01143nam a2200217 a 4500 001 1019933 005 2018-05-18 008 1989 bl uuuu u0uu1 u #d 100 1 $aGANZÁBAL, A. 245 $aEfecto del abrigo en la parición sobre la mortalidad de corderos (III). 260 $aMontevideo (Uruguay): CIAAB$c1989 300 $a2 p. 490 $a(CIAAB, Hoja de Divulgación; 88) 520 $aEl conjunto de trabajos conducidos en la Unidad Experimental de Ovinos de la Estación Experimental La Estanzuela, basan su esfuerzo en el estudio de la problemática asociada a los sistemas intensivos de producción lanar. La mortalidad neonatal de corderos que es uno de los mayores problemas que afecta a la producción ovina nacional tiene también una incidencia importante sobre este tipo de sistemas de avanzada a pesar de desarrollarse sobre pasturas mejoradas de alta calidad y productividad y de aplicarse todas las prácticas de manejo aconsejadas. 650 $aMORTALIDAD 650 $aOVINOS 650 $aREPRODUCTIVIDAD 653 $aABRIGO 653 $aMORTALIDAD DE CORDEROS 700 1 $aFERNÁNDEZ, D. 700 1 $aBELTRÁN, N.
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Registro original : |
INIA Tacuarembó (TBO) |
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha actual : |
23/01/2023 |
Actualizado : |
07/03/2023 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
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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