Data/hora: 21/06/2024 03:46:07

Biblioteca(s): 	Embrapa Arroz e Feijão; Embrapa Milho e Sorgo; Embrapa Solos / UEP-Recife; Embrapa Unidades Centrais.	
Data corrente: 	30/07/2013	
Data da última atualização: 	16/09/2022	
Autoria: 	CARVALHO, M. T. de M.; MADARI, B. E.; LEAL, W. G. de O.; COSTA, A. R. da; MACHADO, P. L. O. de A.; SILVEIRA, P. M. da; MOREIRA, J. A. A.; HEINEMANN, A. B.	
Afiliação: 	MARCIA THAIS DE MELO CARVALHO, CNPAF; BEATA EMOKE MADARI, CNPAF; WESLEY GABRIEL DE OLIVEIRA LEAL, CNPAF; ADRIANA RODOLFO DA COSTA, UEG; PEDRO LUIZ OLIVEIRA DE A MACHADO, CNPAF; PEDRO MARQUES DA SILVEIRA, CNPAF; JOSE ALOISIO ALVES MOREIRA, CNPMS; ALEXANDRE BRYAN HEINEMANN, CNPAF.	
Título: 	Nitrogen fluxes from irrigated common-bean as affected by mulching and mineral fertilization.	
Ano de publicação: 	2013	
Fonte/Imprenta: 	Pesquisa Agropecuária Brasileira, v. 48, n. 5, p. 478-486, maio 2013.	
ISSN: 	0100-204X	
DOI: 	10.1590/S0100-204X2013000500003	
Idioma: 	Inglês	
Conteúdo: 	The objective of this work was to measure the fluxes of N2O&#8209;N and NH3&#8209;N throughout the growing season of irrigated common&#8209;bean (Phaseolus vulgaris), as affected by mulching and mineral fertilization. Fluxes of N2O&#8209;N and NH3&#8209;N were evaluated in areas with or without Congo signal grass mulching (Urochloa ruziziensis) or mineral fertilization. Fluxes of N were also measured in a native Cerrado area, which served as reference. Total N2O&#8209;N and NH3&#8209;N emissions were positively related to the increasing concentrations of moisture, ammonium, and nitrate in the crop system, within 0.5 m soil depth. Carbon content in the substrate and microbial biomass within 0.1 m soil depth were favoured by Congo signal grass and related to higher emissions of N2O&#8209;N, regardless of N fertilization. Emission factors (N losses from the applied mineral nitrogen) for N2O&#8209;N (0.01?0.02%) and NH3&#8209;N (0.3?0.6%) were lower than the default value recognized by the Intergovernmental Panel on Climate Change. Mulch of Congo signal grass benefits N2O&#8209;N emission regardless of N fertilization.	
Palavras-Chave: 	Gás de efeito estufa; N fertilization; No?tillage; Óxido nitroso.	
Thesagro: 	Brachiaria; Cerrado; Cobertura morta; Efeito estufa; Feijão; Fertilidade do solo; Mudança Climática; Nitrogênio; Óxido; Phaseolus vulgaris; Plantio direto.	
Thesaurus Nal: 	Climate change; Greenhouse gases; Nitrous oxide.	
Categoria do assunto: 	--
F Plantas e Produtos de Origem Vegetal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/88351/1/pab.pdf	
Registro original: 	Embrapa Arroz e Feijão (CNPAF)	
Exemplares: 	CNPMS - (25266-1) - UPC - AP - DD -  -  -  - DIS
AI-SEDE - (55001-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS
CNPAF - (32264-1) - UPC - AP - PP - 2013 -  - 2013 - DIS
CNPS-UEPR - (3091-1) - ADD - AP - PP - 631.8 - C332n - 2017.03640 - DIS