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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
21/05/2020 |
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Actualizado : |
10/03/2021 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
QUIÑONES, A.; LATTANZI, F.; SALDAIN, N.E.; LEZAMA, F. |
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Afiliación : |
AMPARO QUIÑONES DELLEPIANE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NÉSTOR ELIO SALDAIN CROCCE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FELIPE LEZAMA, Facultad de Agronomía, UDELAR, UY. |
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Título : |
Weed control in natural grasslands: A case study using a perennial native forb from the South American Campos. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Austral Ecology, November 2020, vol 45 (7), p. 909-920. Doi:https://doi.org/10.1111/aec.12904 |
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DOI : |
10.1111/aec.12904 |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted for publication April 2020. Published November 2020. |
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Contenido : |
Abstract
Management of native weeds in natural grasslands is a challenging task. Often, recommendations are based on short?term studies of the response of weed cover and density to different control methods. However, perennial species well adapted to disturbances typically recover from commonly used control techniques. In this long?term study, we focused on a rosette native to the South American Campos : Eryngium horridum Malme (Apiaceae). This plant is strongly avoided by cattle due to its spiny leaves and tends to form dense patches, reducing the available grazing area. We aimed at understanding how key demographic processes, such as size?related plant survival and seedling establishment, are affected by different control treatments. For this, E. horridum cover, density and size structure were assessed over three years in response to mechanical, chemical and integrated (mechanical + chemical) control methods. In a field experiment, we used a weighted rim and a wiper applicator with 2,4?D + picloram for the mechanical and chemical control, respectively. Cover was reduced by control treatments (?control phase?), but this was not sustained in the long term (?recovery phase?). Regardless of the method used, control success was closely related to effects on population size structure. Mortality was high and rapid in large rosettes, which effectively led to a rapid and widespread cover reduction in all control treatments. However, only herbicide reduced rosette density delaying the recovery phase. Seedling density was low during the experimental period and scarcely affected by treatments. We conclude that cover reduction depends on removing all large rosettes, but recovery is related both to the size of the remaining pool of small rosettes and to the ability of buried rhizomes to resprout. Finally, we highlight the importance of finding a balance between productive goals and biodiversity conservation. In that context, integrated control successfully reduced cover, delayed recovery and minimised the amount of herbicide used. MenosAbstract
Management of native weeds in natural grasslands is a challenging task. Often, recommendations are based on short?term studies of the response of weed cover and density to different control methods. However, perennial species well adapted to disturbances typically recover from commonly used control techniques. In this long?term study, we focused on a rosette native to the South American Campos : Eryngium horridum Malme (Apiaceae). This plant is strongly avoided by cattle due to its spiny leaves and tends to form dense patches, reducing the available grazing area. We aimed at understanding how key demographic processes, such as size?related plant survival and seedling establishment, are affected by different control treatments. For this, E. horridum cover, density and size structure were assessed over three years in response to mechanical, chemical and integrated (mechanical + chemical) control methods. In a field experiment, we used a weighted rim and a wiper applicator with 2,4?D + picloram for the mechanical and chemical control, respectively. Cover was reduced by control treatments (?control phase?), but this was not sustained in the long term (?recovery phase?). Regardless of the method used, control success was closely related to effects on population size structure. Mortality was high and rapid in large rosettes, which effectively led to a rapid and widespread cover reduction in all control treatments. However, only herbicide reduced rosette density delaying t... Presentar Todo |
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Palabras claves : |
DEMOGRAPHY; ESPECIES INDESEABLES; GRASSLAND; RIO DE LA PLATA GRASSLANDS; UNDESIRABLE SPECIES; URUGUAY. |
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Thesagro : |
CONTROL DE MALEZAS; FORRAJES; PASTURAS. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 03002naa a2200289 a 4500
001 1061066
005 2021-03-10
008 2020 bl uuuu u00u1 u #d
024 7 $a10.1111/aec.12904$2DOI
100 1 $aQUIÑONES, A.
245 $aWeed control in natural grasslands$bA case study using a perennial native forb from the South American Campos.$h[electronic resource]
260 $c2020
500 $aArticle history: Accepted for publication April 2020. Published November 2020.
520 $aAbstract Management of native weeds in natural grasslands is a challenging task. Often, recommendations are based on short?term studies of the response of weed cover and density to different control methods. However, perennial species well adapted to disturbances typically recover from commonly used control techniques. In this long?term study, we focused on a rosette native to the South American Campos : Eryngium horridum Malme (Apiaceae). This plant is strongly avoided by cattle due to its spiny leaves and tends to form dense patches, reducing the available grazing area. We aimed at understanding how key demographic processes, such as size?related plant survival and seedling establishment, are affected by different control treatments. For this, E. horridum cover, density and size structure were assessed over three years in response to mechanical, chemical and integrated (mechanical + chemical) control methods. In a field experiment, we used a weighted rim and a wiper applicator with 2,4?D + picloram for the mechanical and chemical control, respectively. Cover was reduced by control treatments (?control phase?), but this was not sustained in the long term (?recovery phase?). Regardless of the method used, control success was closely related to effects on population size structure. Mortality was high and rapid in large rosettes, which effectively led to a rapid and widespread cover reduction in all control treatments. However, only herbicide reduced rosette density delaying the recovery phase. Seedling density was low during the experimental period and scarcely affected by treatments. We conclude that cover reduction depends on removing all large rosettes, but recovery is related both to the size of the remaining pool of small rosettes and to the ability of buried rhizomes to resprout. Finally, we highlight the importance of finding a balance between productive goals and biodiversity conservation. In that context, integrated control successfully reduced cover, delayed recovery and minimised the amount of herbicide used.
650 $aCONTROL DE MALEZAS
650 $aFORRAJES
650 $aPASTURAS
653 $aDEMOGRAPHY
653 $aESPECIES INDESEABLES
653 $aGRASSLAND
653 $aRIO DE LA PLATA GRASSLANDS
653 $aUNDESIRABLE SPECIES
653 $aURUGUAY
700 1 $aLATTANZI, F.
700 1 $aSALDAIN, N.E.
700 1 $aLEZAMA, F.
773 $tAustral Ecology, November 2020, vol 45 (7), p. 909-920. Doi:https://doi.org/10.1111/aec.12904
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Registro original : |
INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
19/04/2018 |
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Actualizado : |
19/04/2018 |
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Autor : |
TUÑÓN, G.; LATTANZI, F.; MENDOZA, A.; FARIÑA, S. |
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Afiliación : |
GONZALO ENRIQUE TUÑÓN SERRANO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SANTIAGO FARIÑA, INIA (Instituto Nacional de Investigación Agropecuaria). |
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Título : |
Recomendaciones a los tamberos para pasar el otoño-invierno 2018. [sitio web]. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
La Estanzuela: INIA, 2018. |
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Idioma : |
Español |
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Notas : |
INIA Noticias. |
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Contenido : |
Estamos entrando en los meses fríos con menos reservas que las necesarias. Según estimaciones de Conaprole para la región Litoral Sur los tamberos cuentan con el 70% de las necesidades de forrajes conservados para pasar el invierno. Va a faltar fibra y podemos estimar dos meses de déficit de reservas.
¿Cómo llegamos a esta situación? Para empezar, la fría primavera del 2017 resultó en menores tasas de crecimiento de pasto y menores excedentes de forraje que los normales; en segundo lugar, los cultivos de verano de 2018 tuvieron menores rindes que los pronosticados: tuvieron menor porte por las bajas temperaturas durante la implantación y el primer desarrollo. La situación se agravó más con un estado de déficit hídrico que resultó en menores tasas de crecimiento y mayores consumos de reservas, y finalmente en siembras tardías de verdeos y pasturas. Todo este combo tiene consecuencias directas en el costo de alimentación del tambo porque empuja al uso de reservas y/o concentrados para suplir el déficit. |
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Thesagro : |
TAMBO. |
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Asunto categoría : |
-- |
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URL : |
http://www.inia.uy/estaciones-experimentales/direcciones-regionales/inia-la-estanzuela/recomendaciones-a-los-tamberos-para-pasar-el-otoño-invierno-2018
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Marc : |
LEADER 01501nam a2200169 a 4500
001 1058457
005 2018-04-19
008 2018 bl uuuu u0uu1 u #d
100 1 $aTUÑÓN, G.
245 $aRecomendaciones a los tamberos para pasar el otoño-invierno 2018. [sitio web].$h[electronic resource]
260 $aLa Estanzuela: INIA$c2018
500 $aINIA Noticias.
520 $aEstamos entrando en los meses fríos con menos reservas que las necesarias. Según estimaciones de Conaprole para la región Litoral Sur los tamberos cuentan con el 70% de las necesidades de forrajes conservados para pasar el invierno. Va a faltar fibra y podemos estimar dos meses de déficit de reservas. ¿Cómo llegamos a esta situación? Para empezar, la fría primavera del 2017 resultó en menores tasas de crecimiento de pasto y menores excedentes de forraje que los normales; en segundo lugar, los cultivos de verano de 2018 tuvieron menores rindes que los pronosticados: tuvieron menor porte por las bajas temperaturas durante la implantación y el primer desarrollo. La situación se agravó más con un estado de déficit hídrico que resultó en menores tasas de crecimiento y mayores consumos de reservas, y finalmente en siembras tardías de verdeos y pasturas. Todo este combo tiene consecuencias directas en el costo de alimentación del tambo porque empuja al uso de reservas y/o concentrados para suplir el déficit.
650 $aTAMBO
700 1 $aLATTANZI, F.
700 1 $aMENDOZA, A.
700 1 $aFARIÑA, S.
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INIA La Estanzuela (LE) |
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