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	Provedor de dados Rev. Bras. Ciênc. Solo (1) Autor Ceballos-Ramírez,Juan Manuel (1) Dendooven,Luc (1) Gutierrez-Micelli,Federico (1) Ponce-Mendoza,Alejandro (1) Palavra-chave Acacia angustissima (1) Denitrification (1) Nitrification (1) Soil water content (1) Urea (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2010 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Emission of nitrous oxide and carbon dioxide from semi-arid tropical soils in Chiapas México Rev. Bras. Ciênc. Solo Ponce-Mendoza,Alejandro; Ceballos-Ramírez,Juan Manuel; Gutierrez-Micelli,Federico; Dendooven,Luc. The semi-arid region of Chiapas is dominated by N2 -fixing shrubs, e.g., Acacia angustissima. Urea-fertilized soil samples under maize were collected from areas covered and uncovered by A. angustissima in different seasons and N2O and CO2 emissions were monitored. The objective of this study was to determine the effects of urea and of the rainy and dry season on gas emissions from semi-arid soil under laboratory conditions. Urea and soil use had no effect on CO2 production. Nitrons oxide emission from soil was three times higher in the dry than in the rainy season, while urea fertilization doubled emissions. Emissions were twice as high from soil sampled under A. angustissima canopy than from arable land, but 1.2 lower than from soil sampled outside the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Acacia angustissima; Denitrification; Nitrification; Soil water content; Urea. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000500015 Registros recuperados: 1 Primeira ... 1 ... Última

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