Data/hora: 21/06/2024 22:05:29

Biblioteca(s): 	Embrapa Agrobiologia.	
Data corrente: 	29/05/2020	
Data da última atualização: 	29/05/2020	
Autoria: 	FARIA, S. M. de; BALIEIRO, F. de C.; PAULA, R. R.; SANTOS, F. M.; ZILLI, J. E.	
Afiliação: 	SERGIO MIANA DE FARIA, CNPAB; FABIANO DE CARVALHO BALIEIRO, CNPS; Ranieri Ribeiro Paula, UFES; Felipe Martini Santos, UFRRJ; JERRI EDSON ZILLI, CNPAB.	
Título: 	Biological Nitrogen Fixation (BNF) in Mixed-Forest Plantations.	
Ano de publicação: 	2020	
Fonte/Imprenta: 	In: CARDOSO, E.J. B. N.; GONÇALVES, J. L. de M.; BALIEIRO, F. de C.; FRANCO, A. A. (Eds.) Mixed plantations of eucalyptus and leguminous trees. Basel: Springer, 2020.	
Páginas: 	p. 103-135	
ISBN: 	978-3-030-32365-3	
DOI: 	https://doi.org/10.1007/978-3-030-32365-3_6	
Idioma: 	Inglês	
Conteúdo: 	Nitrogen (N) supply is one of the key factors for the success of forest plantations and the search for strategies that allow constant N inputs with reasonable cost is desirable. The ability to fix and accumulate large amounts of N confers adaptive characteristics to the legumes that excel over other species. Here we address the biological nitrogen fixation (BNF) as an ecological strategy in mixed-forest plantations, allowing N fixation to act positively on the development of non-N2-fixing species. We include a brief description on the BNF establishment and the taxonomy and efficiency of the relevant bacteria. In Brazil, the contribution of BNF in mixed-forest plantations, mainly the ones between Eucalyptus spp. and Acacia spp., has demonstrated that their use is improving the quality of the soil organic matter and the N status of the system. The productivity of the non-N2-fixing species increases, especially in oligotrophic soils, varying from 2 to 90%. Normally, the BNF contribution is higher in mixed plantations than in monocultures and the amount of biologically fixed N makes up 50–60 kg ha?1 year?1. The studies on nitrogen-fixing tree species and mixed-species stands recently were intensified. However, large-scale use of mixed forest plantations is still challenging.	
Palavras-Chave: 	Acacia spp; Bacterial association; Diazotrophic bacteria; Forest sustainability; Nitrogen cycling.	
Categoria do assunto: 	S Ciências Biológicas	
Registro original: 	Embrapa Agrobiologia (CNPAB)