African Journal of Agricultural Research
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Article Number - 32CC5CC62225

Vol.12(1), pp. 6-11 , January 2017
DOI: 10.5897/AJAR2016.11711
ISSN: 1991-637X

Full Length Research Paper

Effects of associated co-inoculation of Bradyrhizobium japonicum with Azospirillum brasilense on soybean yield and growth

Glaucia Cristina Ferri
  • Glaucia Cristina Ferri
  • Graduate Program in Agronomy, State University of Maringá, Brazil.
  • Google Scholar
Alessandro Lucca Braccini
  • Alessandro Lucca Braccini
  • Department of Agronomy, State University of Maringá, Brazil.
  • Google Scholar
Fernanda Brunetta Godinho Anghinoni
  • Fernanda Brunetta Godinho Anghinoni
  • Graduate Program in Agronomy, State University of Maringá, Brazil.
  • Google Scholar
Lucas Caiubi Pereira
  • Lucas Caiubi Pereira
  • Graduate Program in Agronomy, State University of Maringá, Brazil.
  • Google Scholar

 Received: 15 September 2016  Accepted: 31 October 2016  Published: 05 January 2017

Copyright © 2017 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0

The continuous development of soybean cultivars aiming at higher yields can result in a demand of N supply higher than the standard inoculation with Bradyrhizobium species. In this context, Azospirillum species, a nitrogen-fixing microorganism found in the rhizosphere of various plant species, may be studied as a way of providing soybean crop with the part of the N it needs. Employing a completely randomized design with four replicates, this study aimed to evaluate the agronomic performance of two different methods of standard inoculation of Bradyrhizobium spp. associated with the co-inoculation with Azospirillum spp. The tested treatments consisted of the absence of N fertilizer and inoculant, full N recommendation, two single inoculations with Bradyrhizobium spp. (in-furrow and seed-applied) combined with an in-furrow application of Azospirillum spp. At R2 growth stage, the nodule number, nodule dry weight, shoot dry biomass and shoot N content were the variables evaluated, whereas at R8 the grain yield, thousand seed weight and grain N content were assessed. The results demonstrated that the co-inoculation of Bradyrhizobium spp. with Azospirillum brasilense is beneficial to soybean yield, mainly using the in-furrow method of application for Bradyrhizobium spp., associated to the in-furrow co-inoculation with Azospirillum spp.


Key words: Glycine max, inoculation, nitrogen content, yield.

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APA Ferri, G. C., Braccini, A. L., Anghinoni, F. B. G., & Pereira, L. C. (2017). Effects of associated co-inoculation of Bradyrhizobium japonicum with Azospirillum brasilense on soybean yield and growth. African Journal of Agricultural Research, 12(1), 6-11.
Chicago Glaucia Cristina Ferri, Alessandro Lucca Braccini, Fernanda Brunetta Godinho Anghinoni and Lucas Caiubi Pereira. "Effects of associated co-inoculation of Bradyrhizobium japonicum with Azospirillum brasilense on soybean yield and growth." African Journal of Agricultural Research 12, no. 1 (2017): 6-11.
MLA Glaucia Cristina Ferri, et al. "Effects of associated co-inoculation of Bradyrhizobium japonicum with Azospirillum brasilense on soybean yield and growth." African Journal of Agricultural Research 12.1 (2017): 6-11.
DOI 10.5897/AJAR2016.11711

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