Registro completo |
Provedor de dados: |
Rev. Bras. Ciênc. Solo
|
País: |
Brazil
|
Título: |
Mitigation of Mombasa Grass ( Megathyrsus maximus ) Dependence on Nitrogen Fertilization as a Function of Inoculation with Azospirillum brasilense
|
Autores: |
Leite,Rubson da Costa
Santos,Antonio Clementino dos
Santos,José Geraldo Donizetti dos
Leite,Robson da Costa
Oliveira,Leonardo Bernardes Taverny de
Hungria,Mariangela
|
Data: |
2019-01-01
|
Ano: |
2019
|
Palavras-chave: |
Growth-promoting microbes
Inoculant
Biological nitrogen fixation
Tropical pasture
|
Resumo: |
ABSTRACT Using biological inputs to improve the efficiency of nitrogen fertilizers represents an alternative for the cultivation of grasses in tropical regions. Azospirillum brasilense is a species of plant growth promoting bacteria widely studied and used in inoculants. Thus, this study aimed to evaluate the performance of Mombasa grass ( Megathyrsus maximus ) in association with A. brasilense and nitrogen (N) fertilization. The study was conducted under field conditions in Araguaína-Tocantins State, between December 2017 and May 2018. The treatments were arranged in randomized blocks, in a 5 × 2 factorial arrangement, with five doses of N fertilization (0, 25, 50, 75, and 100 kg ha-1) combined with two inoculation treatments (inoculated and non inoculated), in four replicates. For the number of tillers and root production, the inoculation efficiency varied as a function of the supplied N doses. However, the percentage of leaf N was higher for inoculated plants regardless of the application of nitrogen. In the absence of nitrogen fertilization, it was possible to increase forage production by up to 36 % with inoculation.
|
Tipo: |
Info:eu-repo/semantics/article
|
Idioma: |
Inglês
|
Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100523
|
Editor: |
Sociedade Brasileira de Ciência do Solo
|
Relação: |
10.1590/18069657rbcs20180234
|
Formato: |
text/html
|
Fonte: |
Revista Brasileira de Ciência do Solo v.43 2019
|
Direitos: |
info:eu-repo/semantics/openAccess
|