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	Provedor de dados Chilean J. Agric. Res. (1) Autor Muñoz,Cristina (1) Paulino,Leandro (1) Vera,Jenniffer (1) Zagal,Erick (1) Palavra-chave Agriculture (1) Air pollution (1) Global change (1) Greenhouse gases (1) Nitrogen (1) Tipo do documento Journal article (1) Ano 2011 (1) País Chile (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última CO2 and N2O emissions from an Andisol in Chile under a no-till system using non-fixed closed chambers Chilean J. Agric. Res. Muñoz,Cristina; Paulino,Leandro; Vera,Jenniffer; Zagal,Erick. Chile has different types of soil and climate conditions that favor a wide range of agricultural activities that can generate potential atmospheric contamination like greenhouse gases (GHG). Nevertheless, the contribution of agricultural soils to atmospheric emissions has yet to be measured in Chile. The aim of this study was to assess seasonal variability of CO2 and N2O effluxes in situ from a volcanic ash-derived soil under different agronomic management practices. Gas samples were obtained from headspaces of non-fixed closed chambers in an annual crop rotation under a no-till system in an Andisol in southern Chile (36° S). Two N-sources (NH4+ and NO3-) and ammonium fertilization plus two lime doses (0.5 and 1 Mg ha-1) were considered for soil treatments... Tipo: Journal article Palavras-chave: Greenhouse gases; Agriculture; Nitrogen; Global change; Air pollution. Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000200013 Registros recuperados: 1 Primeira ... 1 ... Última

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