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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
21/02/2014 |
Actualizado : |
18/01/2018 |
Autor : |
DÍA DE CAMPO, INIA TACUAREMBÓ, UNIDAD EXPERIMENTAL GLENCOE, SETIEMBRE, 2008. |
Título : |
Alternativas de intensificación, especialización, diversificación y valorización de la ganadería ovina y bovina en basalto. |
Fecha de publicación : |
2008 |
Fuente / Imprenta : |
Tacuarembó (Uruguay): INIA, 2008. |
Páginas : |
30 p. |
Idioma : |
Español |
Contenido : |
El INIA está comprometido con la búsqueda continua de generar soluciones tecnológicas para hoy, y con el desafío que implica que sean de utilidad también en el mañana. En este sentido la Institución viene desarrollado líneas de trabajos experimentales, en alianzas con los sectores público y privado, entre las que se incluyen: la producción responsable sobre campo natural y sus características en diferentes escenarios de manejo, desarrollo de nuevas especies y variedades forrajeras adaptadas a los suelos más marginales, mejora de los proceso de cría, recría y engorde ovino y bovino mediante la utilización de diferentes sistemas más intensivos de alimentación, producción de lanas finas y superfinas, evaluación de nuevos biotipo de doble propósito en ovinos, promover la sanidad y el bienestar animal, y diferenciar y valorizar el producto (tierna, saludable, orgánica, etc.), que son el motivo de los trabajos que se presentarán en este Día de Campo invierno-primaveral. |
Thesagro : |
BASALTO; CAMPO NATURAL; GANADERIA; GANADO BOVINO; OVINOS; PRODUCCIÓN ANIMAL; URUGUAY. |
Asunto categoría : |
L01 Ganadería |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/4374/1/GLENCOE-2008SetGuia-de-actividad-Visita-guiada.pdf
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Marc : |
LEADER 01712nam a2200205 a 4500 001 1018244 005 2018-01-18 008 2008 bl uuuu u0uu1 u #d 100 1 $aDÍA DE CAMPO, INIA TACUAREMBÓ, UNIDAD EXPERIMENTAL GLENCOE, SETIEMBRE, 2008. 245 $aAlternativas de intensificación, especialización, diversificación y valorización de la ganadería ovina y bovina en basalto. 260 $aTacuarembó (Uruguay): INIA$c2008 300 $a30 p. 520 $aEl INIA está comprometido con la búsqueda continua de generar soluciones tecnológicas para hoy, y con el desafío que implica que sean de utilidad también en el mañana. En este sentido la Institución viene desarrollado líneas de trabajos experimentales, en alianzas con los sectores público y privado, entre las que se incluyen: la producción responsable sobre campo natural y sus características en diferentes escenarios de manejo, desarrollo de nuevas especies y variedades forrajeras adaptadas a los suelos más marginales, mejora de los proceso de cría, recría y engorde ovino y bovino mediante la utilización de diferentes sistemas más intensivos de alimentación, producción de lanas finas y superfinas, evaluación de nuevos biotipo de doble propósito en ovinos, promover la sanidad y el bienestar animal, y diferenciar y valorizar el producto (tierna, saludable, orgánica, etc.), que son el motivo de los trabajos que se presentarán en este Día de Campo invierno-primaveral. 650 $aBASALTO 650 $aCAMPO NATURAL 650 $aGANADERIA 650 $aGANADO BOVINO 650 $aOVINOS 650 $aPRODUCCIÓN ANIMAL 650 $aURUGUAY
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó; INIA Treinta y Tres. |
Fecha actual : |
02/02/2016 |
Actualizado : |
10/10/2019 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
JAURENA, M.; LEZAMA, F.; SALVO, L.; CARDOZO, G.; AYALA, W.; TERRA, J.A.; NABINGER, C. |
Afiliación : |
MARTIN ALEJANDRO JAURENA BARRIOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FELIPE LEZAMA, Facultad de Agronomía, UDELAR, UY.; LUCÍA SALVO, Facultad de Agronomía, UDELAR, UY.; GERONIMO AGUSTIN CARDOZO CABANELAS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WALTER FELIZARDO AYALA SILVERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CARLOS NABINGER, UNIVERSIDADE FEDERAL DE RÍO GRANDE DO SUL, PORTO ALEGRE, RS, BRASIL. |
Título : |
The dilemma of improving native grasslands by overseeding legumes: production intensification or diversity conservation. |
Fecha de publicación : |
2016 |
Fuente / Imprenta : |
Rangeland Ecology & Management, 2016, v. 69, no. 1 p. 35-42. |
ISSN : |
1550-7424 |
DOI : |
10.1016/j.rama.2015.10.006 |
Idioma : |
Inglés |
Notas : |
Article history: Received 25 November 2014; Accepted 23 September 2015. |
Contenido : |
In native campos of Uruguay, overseeding legumes coupled with phosphorus (P) fertilization is a technology used to increase animal production. Short-termimprovements in both forage productivity and quality are repeatedly reported. However, some evidence suggests that this management may at times lead to the collapse of the native community and invasions by exotic species. Indeed, it is yet unclear to what extent overseeding legumes into native grasslands affects its long-term integrity. This study uses data from a long-term experiment to assess whether increased P fertilizer rates?typically used to encourage legume establishment and growth?are associated with reduced species diversity. In 1996 a grazed native grassland in eastern Uruguay was either left untouched (control) or overseeded with a mix of Trifolium repens and Lotus corniculatus and then fertilized at either a moderate or high rate of P (197 or 394 kg · ha?1 over 13 years, respectively). The three treatments were arranged in a randomized block design with four replicates of 2 hectares each. In 2005 the experiment was exhaustively sampled: 11 georeferenced sampling points per replicate, each encompassing ~20m2. Extractable Pwasmeasured in the 0?5- and 5?15-cmsoil layers. In 2009, species presence and cover weremeasured at the same points. Across treatments,wherever legumes were introduced, extractable soil Pwas negatively related to species richness and diversity (P b 0.01) and native grass cover was reduced. This effect became asymptotic once soil P exceeded 27 and 36 mg · kg?1 of P (0?5 cm), respectively. Therefore the documented reduction in species richness and diversity suggests a trade-off between increased pasture production and decreased vegetation stability may be operating in response to P fertilization of overseeded grasslands. The underlying
ecophysiological mechanisms, as well as grazing management options to mitigate species diversity decline, should be further studied. MenosIn native campos of Uruguay, overseeding legumes coupled with phosphorus (P) fertilization is a technology used to increase animal production. Short-termimprovements in both forage productivity and quality are repeatedly reported. However, some evidence suggests that this management may at times lead to the collapse of the native community and invasions by exotic species. Indeed, it is yet unclear to what extent overseeding legumes into native grasslands affects its long-term integrity. This study uses data from a long-term experiment to assess whether increased P fertilizer rates?typically used to encourage legume establishment and growth?are associated with reduced species diversity. In 1996 a grazed native grassland in eastern Uruguay was either left untouched (control) or overseeded with a mix of Trifolium repens and Lotus corniculatus and then fertilized at either a moderate or high rate of P (197 or 394 kg · ha?1 over 13 years, respectively). The three treatments were arranged in a randomized block design with four replicates of 2 hectares each. In 2005 the experiment was exhaustively sampled: 11 georeferenced sampling points per replicate, each encompassing ~20m2. Extractable Pwasmeasured in the 0?5- and 5?15-cmsoil layers. In 2009, species presence and cover weremeasured at the same points. Across treatments,wherever legumes were introduced, extractable soil Pwas negatively related to species richness and diversity (P b 0.01) and native grass cover was reduced. This ... Presentar Todo |
Palabras claves : |
CAMPOS; IMPROVEMENT; INTEGRACIÓN A LARGO PLAZO; LONG-TERM INTEGRITY; PRODUCCIÓN A CORTO PLAZO; SHORT-TERM PRODUCTION; TRADE-OF. |
Thesagro : |
INTEGRACION; LEGUMINOSAS; MEJORAMIENTOS EXTENSIVOS; PASTURAS NATURALES; PRODUCCION. |
Asunto categoría : |
F62 Fisiología de la planta - Crecimiento y desarrollo |
Marc : |
LEADER 03124naa a2200373 a 4500 001 1054261 005 2019-10-10 008 2016 bl uuuu u00u1 u #d 022 $a1550-7424 024 7 $a10.1016/j.rama.2015.10.006$2DOI 100 1 $aJAURENA, M. 245 $aThe dilemma of improving native grasslands by overseeding legumes$bproduction intensification or diversity conservation.$h[electronic resource] 260 $c2016 500 $aArticle history: Received 25 November 2014; Accepted 23 September 2015. 520 $aIn native campos of Uruguay, overseeding legumes coupled with phosphorus (P) fertilization is a technology used to increase animal production. Short-termimprovements in both forage productivity and quality are repeatedly reported. However, some evidence suggests that this management may at times lead to the collapse of the native community and invasions by exotic species. Indeed, it is yet unclear to what extent overseeding legumes into native grasslands affects its long-term integrity. This study uses data from a long-term experiment to assess whether increased P fertilizer rates?typically used to encourage legume establishment and growth?are associated with reduced species diversity. In 1996 a grazed native grassland in eastern Uruguay was either left untouched (control) or overseeded with a mix of Trifolium repens and Lotus corniculatus and then fertilized at either a moderate or high rate of P (197 or 394 kg · ha?1 over 13 years, respectively). The three treatments were arranged in a randomized block design with four replicates of 2 hectares each. In 2005 the experiment was exhaustively sampled: 11 georeferenced sampling points per replicate, each encompassing ~20m2. Extractable Pwasmeasured in the 0?5- and 5?15-cmsoil layers. In 2009, species presence and cover weremeasured at the same points. Across treatments,wherever legumes were introduced, extractable soil Pwas negatively related to species richness and diversity (P b 0.01) and native grass cover was reduced. This effect became asymptotic once soil P exceeded 27 and 36 mg · kg?1 of P (0?5 cm), respectively. Therefore the documented reduction in species richness and diversity suggests a trade-off between increased pasture production and decreased vegetation stability may be operating in response to P fertilization of overseeded grasslands. The underlying ecophysiological mechanisms, as well as grazing management options to mitigate species diversity decline, should be further studied. 650 $aINTEGRACION 650 $aLEGUMINOSAS 650 $aMEJORAMIENTOS EXTENSIVOS 650 $aPASTURAS NATURALES 650 $aPRODUCCION 653 $aCAMPOS 653 $aIMPROVEMENT 653 $aINTEGRACIÓN A LARGO PLAZO 653 $aLONG-TERM INTEGRITY 653 $aPRODUCCIÓN A CORTO PLAZO 653 $aSHORT-TERM PRODUCTION 653 $aTRADE-OF 700 1 $aLEZAMA, F. 700 1 $aSALVO, L. 700 1 $aCARDOZO, G. 700 1 $aAYALA, W. 700 1 $aTERRA, J.A. 700 1 $aNABINGER, C. 773 $tRangeland Ecology & Management, 2016$gv. 69, no. 1 p. 35-42.
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