Agronomic efficiency of liquid inoculant based on Bradyrhizobium japonicum and Azospirillum brasilense for soybean crop.

Authors

Keywords:

germination, soybean, Plant growth, Final stand

Abstract

This research was conducted with the objective of evaluating the agronomic efficiency of different doses of the product formulated with two nitrogen-fixing bacteria (Bradyrhizobium japonicum and Azospirillum brasilense), in the development of soybean crop, as well as evaluating the possible pathogenic effect of crop treatments. To this end, four studies were installed in the cities of Ponta Grossa – PR, Paranapanema – SP, Bandeirantes – PR and Paranavaí – PR, in the 2020/2021 Harvest. The statistical design used was in randomized blocks, with six treatments and four replications, using the cultivar 58I60 RSF IPRO – BMX LANÇA IPRO. The results obtained in the four soil-climatic locations showed that product inoculation via seed positively influenced the growth of soybean plants and did not cause any symptoms of phytotoxicity. The dose of 300 mL 50 kg seeds -1 of Inoculant tested showed greater stability in the response in the different locations where the studies were conducted. Therefore, it provided an increase in the germination and final stand of plants, an increase in the number of nodules, an increase in the biomass of the shoot and root and a positive increase in the mass of a thousand grains and productivity in relation to the control.

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Author Biographies

Fernanda Kelly da Silva Zilles, Innova Agrotecnologia, Foz do Iguaçu, Paraná, Brasil.

Master in Biotechnology from the Federal University of Technology - Paraná, Bachelor in Bioprocess Engineering and Biotechnology from the Federal Technological University of Paraná, Toledo Campus and Technological Chemistry from the Federal Technological University of Paraná, UTFPR - Medianeira Campus. Work focused on the area of ​​industrial fermentation processes to obtain microorganisms of interest in biological control. Currently, Biological Production Manager at Innova Agrotecnologia.

Mariana Machado Fidelis do Nascimento, Universidade Tecnológica Federal do Paraná, Ponta Grossa, Paraná, Brasil.

Microbiologist and Mycologist professional which has mainly acted in scientific research, and in the management of a collection of microbiological cultures. The academic background includes Microbiology, Microbial Ecology, Mycology, Biotechnology, and Applied Microbiology.

Izabeli Isidoro dos Santos, Innova Agrotecnologia, Foz do Iguaçu, Paraná, Brasil.

Degree in Chemical Engineering from the University of Western Paraná (UNIOESTE) and an MBA in Project Management from USP/ESALQ. She has experience in industrial fermentation processes to obtain microorganisms. She is currently the Supervisor of biological production at Innova Agrotecnologia.

Mariana Mendoza de Lima, Innova Agrotecnologia, Foz do Iguaçu, Paraná, Brasil.

Currently a master's student in the Postgraduate Program in Biotechnology at the Federal Technological University of Paraná. Bachelor's degree in Biotechnology from the Federal University of Latin American Integration (UNILA). Work focused on the area of ​​industrial fermentation processes to obtain microorganisms of interest in biological control with a focus on production planning and quality control of entomopathogenic fungi. Experience in solid and liquid fermentation on a laboratory and industrial scale. Brief experience in research on in vitro culture of animal cells.

Vinicius de Oliveira Laurindo, Innova Agrotecnologia, Foz do Iguaçu, Paraná, Brasil.

With experience in agricultural regulations, market surveillance and agricultural consultancy. Seeking opportunities that allow him to improve his knowledge in agricultural practices and add value to the sector. A dedicated and qualified professional, willing to deal with new challenges and contribute significantly to the sustainable and innovative growth of the agricultural sector.

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Published

2025-08-23

How to Cite

Kelly da Silva Zilles, F., Machado Fidelis do Nascimento, M., Izabeli Isidoro dos Santos, Mendoza de Lima, M., & de Oliveira Laurindo, V. (2025). Agronomic efficiency of liquid inoculant based on Bradyrhizobium japonicum and Azospirillum brasilense for soybean crop. Geama Journal - Environmental Sciences, 11(2), 4–12. Retrieved from https://www.journals.ufrpe.br/index.php/geama/article/view/7219

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Vol. 11 No. 2 (2025): .

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