Resumo

BRONDANI, Marcelo Stefanello et al. Impact of inoculation with Azospirillum brasilense associated with nitrogen sources in corn culture. Rev. de Ciências Agrárias [online]. 2021, vol.44, n.4, pp.31-40.  Epub 18-Nov-2021. ISSN 0871-018X.  https://doi.org/10.19084/rca.25241.

Nitrogen fertilization in corn is a factor of great impact on production costs, due to its importance in crop yield. In this way, poultry litter and nitrogen-fixing bacteria can be alternative management strategies to supply the demand. Therefore, the objective of this work was to evaluate the impacts of the inoculation of the bacterium A. brasilense associated with poultry litter and mineral fertilization on some plant parameters and on the final productivity of corn grains. The experiment was conducted in a randomized block design, with 8 treatments and 8 repetitions, the treatments being constituted as follows: T1 - Control, T2 - A. brasilense, T3 - 100% N-mineral, T4 - 100% N-mineral + A. brasilense, T5 - 50% N-mineral + 50% N-organic, T6 - 50% N-mineral + 50% N-organic + A. brasilense, T7 - 100% N-organic, T8 - 100% N-organic + A. brasilense. For the plant parameters and final productivity of corn grains, the use of the mineral source and mineral and organic association resulted in greater increments when compared to the organic source alone. The inoculation with A. brasilense did not influence the analyzed parameters.

Palavras-chave : poultry litter; nitrogen fixation; mineral nutrition; productivity; Zea mays.

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