Data/hora: 05/06/2024 18:12:00

Biblioteca(s): | Embrapa Agrobiologia.
Data corrente: | 16/06/2000
Data da última atualização: | 16/06/2000
Autoria: | REIS JÚNIOR, F. B. dos; REIS, V. M.; URQUIAGA, S.; DÖBEREINER, Johanna.
Título: | Influence of nitrogen fertilisation on the population of diazotrophic bacteria Herbaspirillum spp. and Acetobacter diazotrophicus in sugar cane (Saccharum spp.).
Ano de publicação: | 2000
Fonte/Imprenta: | Plant and Soil, Netherlands, v. 219, p .153-159, 2000.
Idioma: | Inglês
Conteúdo: | We report studies on the possible effects of fertilisation with high level of N (300 kg of N ha-l ) on the occurrence and numbers of the diazotrophic bacteria Herbaspirillum spp. and Acetobacter diazotrophicus in sugar cane plants. In the sugar cane genotype SP79-2312, the N fertilised plants generally showed higher concentrations of this element. These same plants also had lower numbers of A. diazotrophicus, while the population of Herbaspirillum spp. was not affected by N application. These differences in the concentration of N and the numbers of A. diazotrophicus due to N application were not shown in the variety SP70-1143. The numbers of A. diazotrophicus were also shown to be influenced by the harvest time, becoming reduced in the harvests that coincided with dry periods of the year.
Palavras-Chave: | Acetobacter diazotrophicus; Bactéria diazotrófica endofítica; Biological nitrogen fixation; BNF; Cana-de-açúcar; Endophytic diazotrophic bacteria; FBN; Fixação biológica de nitrogênio; Herbaspirillum spp; Sugar cane.
Categoria do assunto: | --
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (667-1) - UPC - SP - -- -  -  - 0022511 - DIS