Data/hora: 13/06/2024 10:03:31

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)