Data/hora: 14/06/2024 16:15:53

Provedor de dados: 	Pesquisa Agropecuária Brasileira	
País: 	Brazil	
Título: 	Nitrogen oxides and CO2 from an Oxisol cultivated with corn in succession to cover crops	
Autores: 	Carvalho,Arminda Moreira de; Bustamante,Mercedes Maria da Cunha; Coser,Thais Rodrigues; Marchão,Robélio Leandro; Malaquias,Juaci Vitória.	
Data: 	2016-09-01	
Ano: 	2016	
Palavras-chave: 	Crotalaria juncea; Mucuna pruriens; Carbon and nitrogen stocks; Cerrado; Mitigating greenhouse gases.	
Resumo: 	Abstract The objective of this work was to evaluate the effect of two legumes (Crotalaria juncea and Mucuna pruriens), as cover crops, and of natural fallow, as a control treatment, on the emissions of NOx, N2O, and CO2 from an Oxisol cultivated with corn, under conventional and no-tillage systems, in the Cerrado region, in Central Brazil. Variations of CO2 fluxes in the soil were explained mainly by soil humidity and, in the legumes, under conventional system, by soil NH4+-N concentration. Plots with legumes under no-tillage system had higher annual emissions of CO2, NOx, and N2O than natural fallow. Results show that the use of legumes as cover crops favors the emissions of NOx-N + N2O-N and CO2-C. However, when considering the potential for mitigation of CO2 and nitrogen oxide emissions from the soil, it is important to evaluate changes in soil carbon and nitrogen stocks.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901213	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/s0100-204x2016000900021	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.51 n.9 2016	
Fonte: 	info:eu-repo/semantics/openAccess