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582. | | ZORRILLA DE SAN MARTÍN. G.; JORGE, J.; ROEL, A.; PARFITT, J.; GIGENA, M.; GIGENA, F. Intensificación sostenible mediante rotaciones arroz-soja-pasturas/ganadería regadas por aspersión en lomadas del este de Uruguay. Resumen zafras 2019-2020 y 2020-2021 y conclusiones. In: Terra, J. A.; Martínez, S.; Saravia, H.; Mesones, B. (Eds.) Arroz 2021. Montevideo (UY): INIA, 2022. p. 29-32. (INIA Serie Técnica; 262)Biblioteca(s): INIA Treinta y Tres. |
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583. | | KLOSTER, A.M.; LATIMORI, N.J.; AMIGONE, M.A.; ARANO, A.R.; GHIDA DAZA, C. Invernada de alta producción sobre pasturas base alfalfa con suplementación estratégica. ln: Latimori, N.J.; Kloster, A.M., eds. Invernada bovina en zonas mixtas: claves para una actividad más rentable y eficiente. Marcos Juárez, Córdoba, Argentina: INTA, 1997. p. 165-178 (INTA Agro 2 de Córdoba)Biblioteca(s): INIA Tacuarembó. |
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600. | | ZANINE, A.M.; RODRIGUEZ MOTTA, J.P.; FERREIRA, D.J.; DE SOUZA, A.L.; RIBEIRO, M.D.; GERON, L.J.V.; FAJARDO, M.; SPRUNK, M.; PINHO, R.M.A. Milk performance and grazing behaviour of dairy cows in response to pasture allowance. Animal Production Science, 2019, Volume 59, Issue 4, Pages 749-756. Article history: Submitted: 26 July 2017 /Accepted: 15 February 2018 / Published online: 14 May 2018.Biblioteca(s): INIA Las Brujas. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha actual : |
21/05/2020 |
Actualizado : |
10/03/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
QUIÑONES, A.; LATTANZI, F.; SALDAIN, N.E.; LEZAMA, F. |
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. |
Título : |
Weed control in natural grasslands: A case study using a perennial native forb from the South American Campos. |
Fecha de publicación : |
2020 |
Fuente / Imprenta : |
Austral Ecology, November 2020, vol 45 (7), p. 909-920. Doi:https://doi.org/10.1111/aec.12904 |
DOI : |
10.1111/aec.12904 |
Idioma : |
Inglés |
Notas : |
Article history: Accepted for publication April 2020. Published November 2020. |
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 |
Palabras claves : |
DEMOGRAPHY; ESPECIES INDESEABLES; GRASSLAND; RIO DE LA PLATA GRASSLANDS; UNDESIRABLE SPECIES; URUGUAY. |
Thesagro : |
CONTROL DE MALEZAS; FORRAJES; PASTURAS. |
Asunto categoría : |
-- |
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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