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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
05/03/2024 |
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Actualizado : |
05/03/2024 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
CARDOZO, G.; AYALA, W.; LEZAMA, F.; REYNO, R.; CUADRO, R.; MICHELINI, D.; JAURENA, M.; LATTANZI, F. |
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Afiliación : |
GERONIMO AGUSTIN CARDOZO CABANELAS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WALTER FELIZARDO AYALA SILVERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; F. LEZAMA, Departamento de Sistemas Ambientales, Facultad de Agronomía, Universidad de la República, Av. Garzón 780, Montevideo, 12900, Uruguay; RAFAEL ALEJANDRO REYNO PODESTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; WASHINGTON ROBIN CUADRO LOPEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; D. MICHELINI, Estación Experimental de Facultad de Agronomía en Salto, Facultad de Agronomía, Universidad de la República, Ruta 31 km 21.5, Salto, 50000, Uruguay; MARTIN ALEJANDRO JAURENA BARRIOS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Limited response to phosphorus fertilization in native South American grasslands across a productivity gradient despite low phosphorus concentrations in grassland herbage. |
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Fecha de publicación : |
2024 |
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Fuente / Imprenta : |
Plant and Soil. 2024. https://doi.org/10.1007/s11104-024-06562-5 |
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ISSN : |
0032-079X (print); 1573-5036 (electronic) |
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DOI : |
10.1007/s11104-024-06562-5 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 10 October 2023; Accepted 14 February 2024; Published 26 February 2024. -- Responsible Editor: N. Jim Barrow. --
Correspondence: G.A. Cardozo, Instituto Nacional de Investigación Agropecuaria (INIA), Estación Experimental INIA Treinta y Tres, Ruta 8 km
281, Treinta y Tres 33000, Uruguay. e-mail: gcardozo@inia.org.uy -- Supplementary Information: The online version contains supplementary material available at https://doi.org/10.1007/s11104-024-06562-5 -- Funding: This work was supported by the National Agency for Research and Innovation (ANII-Uruguay) [grant numbers POS_NAC_2016_1_130414 y FSA_PI_2018_1_148653]. -- |
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Contenido : |
ABSTRACT.- Background and aims: Since 1750, the species-rich grasslands native to the Río de la Plata basin in southern South America have sustained low-input livestock production. Typically, these grasslands have low herbage phosphorus (P) concentration, and P deficiency in livestock is not rare. Worldwide, P fertilization is used to increase the productivity and nutritive value of grasslands, but it is unknown whether the Río de la Plata grasslands are limited by P availability. -- Methods: We quantified the response of aboveground net primary productivity (ANPP) to P supply in a meta-analysis of 39 trials carried out between 1968 and 2016 comprising 285 independent comparisons (cases) between unfertilized controls and P-fertilized treatments. -- Results: The ANPP of unfertilized controls ranged from 400 to 17,500 kg dry matter (DM) ha-1 y-1. In 74% of cases, P fertilization did not increase ANPP. The average response was therefore low, at 399 kg DM ha-1 (relative effect + 15%), and largely unrelated to ANPP, vegetation, or soil characteristics. Conversely, in 59% of cases herbage P concentration did increase, particularly at high fertilization rates (average 0.43 mg P g DM-1; relative effect + 36%). -- Conclusions: Despite low herbage P concentration, the current ANPP of Río de la Plata grasslands seems little limited by P supply. Luxury consumption was common in response to P fertilization. Prevailing low herbage nitrogen-to-phosphorus ratios -below 11:1 in 65% of unfertilized controls- suggest nitrogen may be limiting ANPP. In this legume-scarce ecosystem, P fertilization is unlikely to boost productivity and may pose an environmental risk. © 2024 Springer Nature MenosABSTRACT.- Background and aims: Since 1750, the species-rich grasslands native to the Río de la Plata basin in southern South America have sustained low-input livestock production. Typically, these grasslands have low herbage phosphorus (P) concentration, and P deficiency in livestock is not rare. Worldwide, P fertilization is used to increase the productivity and nutritive value of grasslands, but it is unknown whether the Río de la Plata grasslands are limited by P availability. -- Methods: We quantified the response of aboveground net primary productivity (ANPP) to P supply in a meta-analysis of 39 trials carried out between 1968 and 2016 comprising 285 independent comparisons (cases) between unfertilized controls and P-fertilized treatments. -- Results: The ANPP of unfertilized controls ranged from 400 to 17,500 kg dry matter (DM) ha-1 y-1. In 74% of cases, P fertilization did not increase ANPP. The average response was therefore low, at 399 kg DM ha-1 (relative effect + 15%), and largely unrelated to ANPP, vegetation, or soil characteristics. Conversely, in 59% of cases herbage P concentration did increase, particularly at high fertilization rates (average 0.43 mg P g DM-1; relative effect + 36%). -- Conclusions: Despite low herbage P concentration, the current ANPP of Río de la Plata grasslands seems little limited by P supply. Luxury consumption was common in response to P fertilization. Prevailing low herbage nitrogen-to-phosphorus ratios -below 11:1 in 65% of unfert... Presentar Todo |
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Palabras claves : |
"Río de la Plata" grasslands; Forage production; Nitrogen; Stoichiometric changes. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 03290naa a2200289 a 4500
001 1064498
005 2024-03-05
008 2024 bl uuuu u00u1 u #d
022 $a0032-079X (print); 1573-5036 (electronic)
024 7 $a10.1007/s11104-024-06562-5$2DOI
100 1 $aCARDOZO, G.
245 $aLimited response to phosphorus fertilization in native South American grasslands across a productivity gradient despite low phosphorus concentrations in grassland herbage.$h[electronic resource]
260 $c2024
500 $aArticle history: Received 10 October 2023; Accepted 14 February 2024; Published 26 February 2024. -- Responsible Editor: N. Jim Barrow. -- Correspondence: G.A. Cardozo, Instituto Nacional de Investigación Agropecuaria (INIA), Estación Experimental INIA Treinta y Tres, Ruta 8 km 281, Treinta y Tres 33000, Uruguay. e-mail: gcardozo@inia.org.uy -- Supplementary Information: The online version contains supplementary material available at https://doi.org/10.1007/s11104-024-06562-5 -- Funding: This work was supported by the National Agency for Research and Innovation (ANII-Uruguay) [grant numbers POS_NAC_2016_1_130414 y FSA_PI_2018_1_148653]. --
520 $aABSTRACT.- Background and aims: Since 1750, the species-rich grasslands native to the Río de la Plata basin in southern South America have sustained low-input livestock production. Typically, these grasslands have low herbage phosphorus (P) concentration, and P deficiency in livestock is not rare. Worldwide, P fertilization is used to increase the productivity and nutritive value of grasslands, but it is unknown whether the Río de la Plata grasslands are limited by P availability. -- Methods: We quantified the response of aboveground net primary productivity (ANPP) to P supply in a meta-analysis of 39 trials carried out between 1968 and 2016 comprising 285 independent comparisons (cases) between unfertilized controls and P-fertilized treatments. -- Results: The ANPP of unfertilized controls ranged from 400 to 17,500 kg dry matter (DM) ha-1 y-1. In 74% of cases, P fertilization did not increase ANPP. The average response was therefore low, at 399 kg DM ha-1 (relative effect + 15%), and largely unrelated to ANPP, vegetation, or soil characteristics. Conversely, in 59% of cases herbage P concentration did increase, particularly at high fertilization rates (average 0.43 mg P g DM-1; relative effect + 36%). -- Conclusions: Despite low herbage P concentration, the current ANPP of Río de la Plata grasslands seems little limited by P supply. Luxury consumption was common in response to P fertilization. Prevailing low herbage nitrogen-to-phosphorus ratios -below 11:1 in 65% of unfertilized controls- suggest nitrogen may be limiting ANPP. In this legume-scarce ecosystem, P fertilization is unlikely to boost productivity and may pose an environmental risk. © 2024 Springer Nature
653 $a"Río de la Plata" grasslands
653 $aForage production
653 $aNitrogen
653 $aStoichiometric changes
700 1 $aAYALA, W.
700 1 $aLEZAMA, F.
700 1 $aREYNO, R.
700 1 $aCUADRO, R.
700 1 $aMICHELINI, D.
700 1 $aJAURENA, M.
700 1 $aLATTANZI, F.
773 $tPlant and Soil. 2024. https://doi.org/10.1007/s11104-024-06562-5
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ASAS Annual 2020 Meeting Abstracts.| Tipo: Abstracts/Resúmenes |
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| 2. | | LOURENCO, D.; TSURUTA, S.; FRAGOMENI, B.; MASUDA, Y.; AGUILAR, I.; LEGARRA, A.; MILLER, S.; MOSER, D.; MISZTAL, I. Single-step genomic BLUP for national beef cattle evaluation in US: from initial developments to final implementation. Volume Species - Bovine (beef) 1, 495. In: Proceedings of the World Congress on Genetics Applied to Livestock Production, 11., Aotea Centre Auckland, New Zealand: WCGALP, ICAR, 11-16 feb 2018.| Tipo: Trabajos en Congresos/Conferencias |
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