Soybean Seed Co-Inoculation with Bradyrhizobium spp. and Azospirillum brasilense: A New Biotechnological Tool to Improve Yield and Sustainability
By M. Hungria, M. Nogueira, R. Araujo. 2015
219 citations recorded by the source corpus.
Legume nodulation by rhizobia can supply crops with nitrogen and reduce environmental impacts caused by chemical fertilization. The soybean crop in Brazil is an impressive example of how biological N2 fixation can be employed with a plant species of high economic value. However, the development of more productive cultivars, along with the increasing global climatic changes demand agricultural practices to become more productive and yet more environmentally friendly. Plant growth-promoting rhizobacteria (PGPR) are highly beneficial to agriculture worldwide, acting in plant nutrition, protection, and growth stimulation. Azospirillum is, certainly, the most employed PGPR in the world, but little is known about its interaction with rhizobia, when both are applied to legume seeds. We have evaluated the co-inoculation of bradyrhizobia and azospirilla on soybean seeds under different soil and climate conditions in Brazil. Our results demonstrated that co-inoculation is efficient and beneficial to the crop, and promotes yield increases without adding any chemical N fertilizers even in soils where established populations of soybean bradyrhizobia exist. The strategy of co-inoculation thus represents a new biotechnological tool to improve soybean yield without adding any chemical N fertilizers, thus contributing to current practices of sustainability in agriculture.
Subfields: Agronomy and Crop Science, Plant Science
View Paper: https://www.semanticscholar.org/paper/da95d1a1329c80df8f06b1199e42bc8b7bec9f0e
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Citations in the corpus
- Everything you must know about Azospirillum and its impact on agriculture and beyond (2020, background): “On average, the percentage of soybean nodulation increased by around 5% at the Brazilian sites (Hungria et al. 2015; Fipke et al. 2016; Galindo et al. 2018) and around 12% at the Argentinian sites (Benintende et al. 2010; Ferraris and Couretot 2011, 2013; Morla et al. 2019).”
- Co-Inoculation of Soybean with Bradyrhizobium and Azospirillum Promotes Early Nodulation (2015, background): “In previous studies done by our research group, we observed that co-inoculation of soybean with Bradyrhizobium and Azospirillum has resulted in increased grain yield [26] [53], and the technology has been approved and registered for utilization with soybean by the Brazilian regulatory agency.”
- Plant Growth Promoting Bacteria: Biodiversity and Multifunctional Attributes for Sustainable Agriculture (2017, background): “, in symbiosis with their legume host plant, and Azospirillum in non-symbiotic association with their host plant, can fix atmospheric N2 [148-153].”
- Plant Microbiomes and Its Beneficial Multifunctional Plant Growth Promoting Attributes (2017, background): “Among different groups of microbes, the member Bacillus and Bacillus derived genera are belonged to phylum Firmicutes, which most culturable and colonize with different plants such as wheat, rice, maize, soybean, and chickpea [33-37].”