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 | Acceso al texto completo restringido a Biblioteca INIA Treinta y Tres. Por información adicional contacte bibliott@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha : |
30/10/2018 |
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Actualizado : |
10/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
CIGANDA, V.; LÓPEZ-AIZPÚN, M.; REPULLO, M.A.; WU, D.; TERRA, J.A.; ELUSTONDO, D.; CLOUGH, T.; CARDENAS, L.M. |
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Afiliación : |
VERONICA SOLANGE CIGANDA BRASCA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARÍA LÓPEZ-AIZPÚN, LICA, Department of Chemistry, University of Navarre, Spain.; MIGUEL A REPULLO, Institute of Agricultural Research and Training (IFAPA), Spain.; DI WU, Institute of Bio-Geosciences, Agrosphere (IBG-3), Germany.; JOSÉ ALFREDO TERRA FERNÁNDEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DAVID ELUSTONDO, LICA, Department of Chemistry, University of Navarre, Spain.; TIM CLOUGH, Faculty of Agriculture and Life Sciences, New Zealand.; LAURA M. CARDENAS, Rothamsted Research, UK. |
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Título : |
Soil nitrous oxide emissions from grassland: potential inhibitor effect of hippuric acid. |
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Fecha de publicación : |
2018 |
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Fuente / Imprenta : |
Journal of Plant Nutrition ans Soil Science, 2018. |
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DOI : |
10.1002/jpln.201700393 |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted 01 October 2018. |
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Contenido : |
Abstract:
In grassland systems, cattle and sheep urine patches are recognized as nitrous oxide (N2O) emission hot spots due to the high urinary nitrogen (N) concentrations. Hippuric acid (HA) is one of the constituents of ruminant urine that has been reported as a natural inhibitor of soil N2O emissions. The aim of this study was to examine the potential for elevated ruminant urine HA concentrations to reduce N2O emissions, in situ, on an acidic heavy clay soil under poorly drained conditions (WFPS > 85%). A randomized complete block design experiment with three replications and four treatments was conducted using the closed-static-flux chamber methodology.
The four treatments were applied inside the chambers: control with no artificial urine application (C), control artificial urine (U), and enriched artificial urine with two rates of HA (55.8 and 90 mM, U+HA1, U+HA2). Soil inorganic-N, soil dissolved organic carbon (DOC), soil pH as well as N2O and methane (CH4) fluxes were monitored over a 79-d period. Although N2O emissions were not affected by the HA enriched urine treatments, U+HA2 positively affected the retention of N as NHþ4 until day 3, when the soil pH dropped to values < 5. Subsequently, as a consequence of rainfall events and soil acidification, it is likely that leaching or sorption onto clay
reduced the efficacy of HA, masking any treatment differential effect on N2O emissions. Moreover, CH4 fluxes as well as DOC results reflected the soil anaerobic conditions which did not favour nitrification processes. Further research is needed to determine the fate of HA into the soil which might clarify the lack of an in situ effect of this compound. MenosAbstract:
In grassland systems, cattle and sheep urine patches are recognized as nitrous oxide (N2O) emission hot spots due to the high urinary nitrogen (N) concentrations. Hippuric acid (HA) is one of the constituents of ruminant urine that has been reported as a natural inhibitor of soil N2O emissions. The aim of this study was to examine the potential for elevated ruminant urine HA concentrations to reduce N2O emissions, in situ, on an acidic heavy clay soil under poorly drained conditions (WFPS > 85%). A randomized complete block design experiment with three replications and four treatments was conducted using the closed-static-flux chamber methodology.
The four treatments were applied inside the chambers: control with no artificial urine application (C), control artificial urine (U), and enriched artificial urine with two rates of HA (55.8 and 90 mM, U+HA1, U+HA2). Soil inorganic-N, soil dissolved organic carbon (DOC), soil pH as well as N2O and methane (CH4) fluxes were monitored over a 79-d period. Although N2O emissions were not affected by the HA enriched urine treatments, U+HA2 positively affected the retention of N as NHþ4 until day 3, when the soil pH dropped to values < 5. Subsequently, as a consequence of rainfall events and soil acidification, it is likely that leaching or sorption onto clay
reduced the efficacy of HA, masking any treatment differential effect on N2O emissions. Moreover, CH4 fluxes as well as DOC results reflected the soil anaerobic conditions... Presentar Todo |
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Palabras claves : |
BOVINE URINE; HEAVY CLAY SOIL; N2O EMISSIONS; NATURAL NITRIFICATION INHIBITION. |
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Thesagro : |
BOVINOS; GASES DE EFECTO INVERNADERO; ORINA; OXIDO NITROSO. |
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Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
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Marc : |
LEADER 02634naa a2200325 a 4500
001 1059265
005 2019-10-10
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1002/jpln.201700393$2DOI
100 1 $aCIGANDA, V.
245 $aSoil nitrous oxide emissions from grassland$bpotential inhibitor effect of hippuric acid.$h[electronic resource]
260 $c2018
500 $aArticle history: Accepted 01 October 2018.
520 $aAbstract: In grassland systems, cattle and sheep urine patches are recognized as nitrous oxide (N2O) emission hot spots due to the high urinary nitrogen (N) concentrations. Hippuric acid (HA) is one of the constituents of ruminant urine that has been reported as a natural inhibitor of soil N2O emissions. The aim of this study was to examine the potential for elevated ruminant urine HA concentrations to reduce N2O emissions, in situ, on an acidic heavy clay soil under poorly drained conditions (WFPS > 85%). A randomized complete block design experiment with three replications and four treatments was conducted using the closed-static-flux chamber methodology. The four treatments were applied inside the chambers: control with no artificial urine application (C), control artificial urine (U), and enriched artificial urine with two rates of HA (55.8 and 90 mM, U+HA1, U+HA2). Soil inorganic-N, soil dissolved organic carbon (DOC), soil pH as well as N2O and methane (CH4) fluxes were monitored over a 79-d period. Although N2O emissions were not affected by the HA enriched urine treatments, U+HA2 positively affected the retention of N as NHþ4 until day 3, when the soil pH dropped to values < 5. Subsequently, as a consequence of rainfall events and soil acidification, it is likely that leaching or sorption onto clay reduced the efficacy of HA, masking any treatment differential effect on N2O emissions. Moreover, CH4 fluxes as well as DOC results reflected the soil anaerobic conditions which did not favour nitrification processes. Further research is needed to determine the fate of HA into the soil which might clarify the lack of an in situ effect of this compound.
650 $aBOVINOS
650 $aGASES DE EFECTO INVERNADERO
650 $aORINA
650 $aOXIDO NITROSO
653 $aBOVINE URINE
653 $aHEAVY CLAY SOIL
653 $aN2O EMISSIONS
653 $aNATURAL NITRIFICATION INHIBITION
700 1 $aLÓPEZ-AIZPÚN, M.
700 1 $aREPULLO, M.A.
700 1 $aWU, D.
700 1 $aTERRA, J.A.
700 1 $aELUSTONDO, D.
700 1 $aCLOUGH, T.
700 1 $aCARDENAS, L.M.
773 $tJournal of Plant Nutrition ans Soil Science, 2018.
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Registro original : |
INIA Treinta y Tres (TT) |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
06/11/2019 |
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Autor : |
ROSSI RODRÍGUEZ, V.; GRAVINA TEJERA, V.; HEGEDÜS HETZEL, P. |
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Título : |
Aplicación de la metodología Q como herramienta para evaluar capital social en proyectos de extensión universitaria. |
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Fecha de publicación : |
2008 |
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Fuente / Imprenta : |
Agrociencia, 2008, v. 12, no. 1, p. 80-89 |
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ISSN : |
1510-0839 |
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Idioma : |
Español |
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Thesagro : |
INVESTIGACION. |
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Asunto categoría : |
C20 Extensión |
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Marc : |
LEADER 00501naa a2200157 a 4500
001 1027631
005 2019-11-06
008 2008 bl uuuu u00u1 u #d
022 $a1510-0839
100 1 $aROSSI RODRÍGUEZ, V.
245 $aAplicación de la metodología Q como herramienta para evaluar capital social en proyectos de extensión universitaria.
260 $c2008
650 $aINVESTIGACION
700 1 $aGRAVINA TEJERA, V.
700 1 $aHEGEDÜS HETZEL, P.
773 $tAgrociencia, 2008$gv. 12, no. 1, p. 80-89
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INIA Tacuarembó (TBO) |
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