| |
|
|
 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
|
Registro completo
|
|
Biblioteca (s) : |
INIA Tacuarembó; INIA Treinta y Tres. |
|
Fecha : |
02/02/2016 |
|
Actualizado : |
10/10/2019 |
|
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
|
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.
Descargar
Esconder MarcPresentar Marc Completo |
|
Registro original : |
INIA Tacuarembó (TBO) |
|
|
Biblioteca
|
Identificación
|
Origen
|
Tipo / Formato
|
Clasificación
|
Cutter
|
Registro
|
Volumen
|
Estado
|
Volver
|
|
|
| Registros recuperados : 14 | |
| 4. |  | JAURENA, M.; LEZAMA, F.; SALVO, L.; CARDOZO, G.; AYALA, W.; TERRA, J.A.; NABINGER, C. The dilemma of improving native grasslands by overseeding legumes: production intensification or diversity conservation. Rangeland Ecology & Management, 2016, v. 69, no. 1 p. 35-42. Article history: Received 25 November 2014; Accepted 23 September 2015.| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Tacuarembó; INIA Treinta y Tres. |
|    |
| 5. | | TERRA, J.A.; PRAVIA, M.; SALVO, L.; CARBONE, A.M.; GARCÍA PRÉCHAC, F. Desde la viabilidad de la siembra directa en suelos marginales hasta la oportunidad del manejo sitio específico de los mismos. ln: Simposio Nacional de Agricultura de Secano, 1.; 2009, Paysandú, Uruguay Hoffman, E.; Ribeiro, A.; Ernst, O.; García F.O., comp. Primer simposio nacional de agricultura de secano. Montevideo (Uruguay): Facultad de Agronomía, 2009. p. 91-110| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA Treinta y Tres. |
| |
| 6. | | TERRA, J.A.; PRAVIA, V.; SALVO, L.; CARBONE, A.M.; GARCÍA PRÉCHAC, F. Desde la viabilización de la siembra directa en suelos marginales hasta la oportunidad del manejo sitio específico de los mismos. In: [Actas]. Hoffman, E.; Ribeiro, A.; Ernst, O.; García, F. O., eds. Simposio Nacional de Agricultura de Secano, 1, 2009. Paysandú: Facultad de Agronomía, UDELAR, IPNI Cono Sur. p. 91-110.| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA Treinta y Tres. |
|  |
| 7. | | JAURENA, M.; SALVO, L.; TERRA, J.A.; AYALA, W.; BARRIOS, E.; LEZAMA, F. Cambios en el largo plazo de características de suelo y vegetación de mejoramientos de campo natural. ln: Reunión del Grupo Técnico en Forrajeras del Cono Sur, Grupo Campos, 22, 2008, Minas, Uruguay Ayala, W.; Lezama, F.; Barrios, E.; Bemhaja, M.; Saravia, H.; Formoso, D.; Boggiano, P., ed. Bioma campos : Innovando para mantener su sustentabilidad y competitividad. Memorias. Minas (Uruguay): Grupo Campos, 2008.| Tipo: Trabajos en Congresos/Conferencias |
| Biblioteca(s): INIA Treinta y Tres. |
| |
| 8. | | Jaurena, M.; Salvo, L.; Terra, J.; Ayala, W.; Bermúdez, R.; Barrios, E.; Lezama, F. Microcuencas apareadas en Tacuarembó: contribución de raíces de comunidades de campo natural pastoreado y sombreado con Pinus taeda ln: Reunión del grupo técnico en forrajeras del Cono Sur, 22., 2008, Minas, Uruguay Bioma campos: innovando para mantener su sustentabilidad y competitividad. Memorias. Minas (Uruguay): INIA; FAO; PROCISUR, 2008. p. 188 Versión impresa y en CD ROM Instituto Nacional de Investigación Agropecuaria, Uruguay; FAO; PROCISUR| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
| |
| 10. | | GARCÍA-PRÉCHAC, F.; SALVO, L.; ERNST, O.; SIRI-PRIETO, G.; QUINCKE, A.; TERRA, J.A. Long-term effects of different agricultural soil use and management systems on soil degradation in Uruguay. In: Li R., Napier T.L., El-Swaify S.A., Sabir M., Rienzi E. (eds). Global Degradation of Soil and Water Resources. Springer, Singapore, 2022. https://doi.org/10.1007/978-981-16-7916-2_7 p.77-92. Chapter history: First Online 01 January 2022.| Tipo: Capítulo en Libro Técnico-Científico |
| Biblioteca(s): INIA Las Brujas. |
| |
| 11. | | SALVO, L.; TERRA, J.A.; AYALA, W.; BERMÚDEZ, R.; CORREA, J.; AVILA, P.; HERNÁNDEZ, J. Impacts of long-term phosphorus fertilization and addition of perennial legumes on temperate natural grassland. II. Total and particulate soil organic carbon. Abstract. ln: International Grassland Congress, 22nd; International Rangeland Congress, 8th. Proceedings. Multifunctional in a changing world. 2008. Hohhot (China): Guangdong People´s Publishing House. v. 1, p. 382 p.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA Treinta y Tres. |
| |
| 12. | | MARTÍNEZ, A.; OREGGIONI, D.; FERRANDO, L.; FERNÁNDEZ, A.; ILLARZE, G.; IRISARRI, P.; SALVO, L.; TERRA, J.A.; TARLERA, S. Emisión de metano en distintos sistemas arroceros del este uruguayo. [Resumen]. In: Libro de resúmenes de las TERCERAS JORNADAS INTERDISCIPLINARIAS EN BIODIVERSIDAD Y ECOLOGIA. "Desafíos socio-ambientales para el Uruguay del futuro" 28 de Noviembre a 2 de Diciembre 2016, Centro Universitario Regional del Este Rocha, Uruguay. p.113.| Tipo: Abstracts/Resúmenes |
| Biblioteca(s): INIA Las Brujas. |
| |
| 13. | | JAURENA, M.; AYALA, W.; TERRA, J.A.; BERMÚDEZ, R.; BARRIOS, E.; LAGOMARSINO, X.; CORREA, J.; AVILA, P.; SALVO, L.; HERNÁNDEZ, J. Impactos de la fertilización fosfatada y la inclusión de leguminosas en pasturas. ln: Día de Campo, 2010, Treinta y Tres, Uruguay Día de Campo. Treinta y Tres (Uruguay): INIA, 2010. p. 11-13 INIA Treinta y Tres. Unidad Experimental Palo a Pique (UEPP)| Biblioteca(s): INIA Tacuarembó. |
| |
| 14. | | DI SALVO, L.; GARCÍA, J.E.; PUENTE, M.L.; AMIGO, J.; ANRIQUEZ, A.; BARLOCCO, C.; BENINTENDE, S.; BOCHATAY, T.; BORTOLATO, M.; CASSÁN, F.; CASTAÑO, C.; CATAFESTA, M.; CONIGLIO, A.; DÍAZ, M.; GALIÁN, L.R.; GALLACE, E.; GARCÍA, P.; GARCÍA DE SALAMONE, I.E.; LANDA, M.; LIERNUR, G.; MANEIRO, M.L.; MASSA, R.; MALINVERNI, J.; MARCHESSI, N.; MONTELEONE, E.; OVIEDO, S.; POBLITI, L.; PORTELA, G.; RADOVANCICH, D; RIGHES, S.; ROCHA, R.; RODRÍGUEZ CÁCERES, E.; ROSSI, A.; SANTELLA, G.; TORTORA, M.L.; TREJO, N.; VALENZUELA, J.A.; VALLEJO, D. The drop plate method as an alternative for Azospirillum spp viable cell enumeration within the consensus protocol of the REDCAI network. (Brief report). [La técnica de la microgota como alternativa para el recuento de Azospirillum spp. dentro del protocolo de la Red de Control de Calidad de Inoculantes (REDCAI).] Revista Argentina de Microbiología, 2022, Volume 54, Issue 2, Pages 152-157. OPEN ACCESS. doi: https://doi.org/10.1016/j.ram.2021.05.002 Article history: Received 24 November 2020, Accepted 12 May 2021, Available online 7 July 2021. -- Corresponding author. M.L. Puente, e-mail address: puente.mariana@inta.gob.ar -- LICENSE: Este es un artículo Open Access bajo la licencia...| Tipo: Artículos en Revistas Indexadas Internacionales | Circulación / Nivel : Internacional - -- |
| Biblioteca(s): INIA Las Brujas. |
| |
| Registros recuperados : 14 | |
|
| Expresión de búsqueda válido. Check! |
|
|
