Biological N2 fixation and yield performance of soybean inoculated with Bradyrhizobium

Zilli, Jerri Édson; Pacheco, Rafael Sanches; Gianluppi, Vicente; Smiderle, Oscar José; Caballero, Segundo Sacramento Urquiaga; Hungría, Mariangela

doi:10.1007/s10705-021-10128-7

Cited by 36 publications

(9 citation statements)

References 48 publications

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“…strains can fully supply the crops’ N demand, eliminating the need of N‐fertilizers in soybean. This saves the country about USD 13 billion per year in terms of N‐fertilizer equivalents (Zilli et al ., 2021) and contributes towards climate change mitigation by significantly reducing the emission of greenhouse gases (GHGs), such as nitrous oxide (N 2 O). In the 2019/2020 crop season, 70 million doses of inoculants for soybean were commercialized in Brazil, which covers approximately 78% of the cropping area (about 36.5 million hectares).…”

Section: Stories Of Success and Market Trendsmentioning

confidence: 99%

Realities and hopes in the application of microbial tools in agriculture

Batista

Singh

2021

Microbial Biotechnology

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Summary The use of microbial tools to sustainably increase agricultural production has received significant attention from researchers, industries and policymakers. Over the past decade, the market access and development of microbial products have been accelerated by (i) the recent advances in plant‐associated microbiome science, (ii) the pressure from consumers and policymakers for increasing crop productivity and reducing the use of agrochemicals, (iii) the rising threats of biotic and abiotic stresses, (iv) the loss of efficacy of some agrochemicals and plant breeding programs and (v) the calls for agriculture to contribute towards mitigating climate change. Although the sector is still in its infancy, the path towards effective microbial products is taking shape and the global market of these products has increased faster than that of agrochemicals. Promising results from using microbes either as biofertilizers or biopesticides have been continually reported, fuelling optimism and high expectations for the sector. However, some limitations, often related to low efficacy and inconsistent performance in field conditions, urgently need to be addressed to promote a wider use of microbial tools. We propose that advances in in situ microbiome manipulation approaches, such as the use of products containing synthetic microbial communities and novel prebiotics, have great potential to overcome some of these current constraints. Much more progress is expected in the development of microbial inoculants as areas such as synthetic biology and nano‐biotechnology advance. If key technical, translational and regulatory issues are addressed, microbial tools will not only play an important role in sustainably boosting agricultural production over the next few decades but also contribute towards other sustainable development goals, including job creation and mitigation of the impacts of climate change.

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Section: Stories Of Success and Market Trendsmentioning

confidence: 99%

Realities and hopes in the application of microbial tools in agriculture

Batista

Singh

2021

Microbial Biotechnology

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“…Practices include crop rotation, cover cropping and intercropping (French et al 2021). Therefore, although the soybean crop response to inoculation is very successful in the rst few years, less effective strains with high saprophytic ability can dominate the soil population over time, which decreases the bene ts of BNF if no new inoculations are made (Zilli et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Crop rotation and inoculation increase soil bradyrhizobia population, soybean grain yields, and profitability

Sanzovo¹,

Silvestre²,

Goes³

et al. 2022

Preprint

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Background and Aims Crop rotation systems and rhizobial inoculation are strategies to increase yield through organic matter addition and modulation of microbial diversity, yet the extent to which these agricultural practices change soil Bradyrhizobium populations, soybean grain yield and economic benefits to farmers are unclear. Thus, this study aimed to evaluate the interaction between crop rotation and inoculation of soybean (Glycine max) cultivated in two contrasting soils (clayey and sandy soil) on biological nitrogen fixation (BNF) components, grain yields and profits. Methods Field experiments with a three-year crop rotation system were carried out to compare effects of inoculation soil chemical attributes, the of bradyrhizobia most probable number (MPN) and diversity, soybean nodulation, grain yield and economic value. Results The crop management system did not affect the soil MPN of bradyrhizobia, which was altered by the soil sampling time, with higher values during the postharvest period for the summer crops. In clayey soil, soybean nodulation was influenced by crop rotation. The grain yield of inoculated soybean in clayey soil was higher than that in sandy soil. Conclusion The soybean response to inoculation is influenced by cropping history. Crop rotation and inoculation of soybean is a strategy for improving BNF components, grain yields and profits. Over time, diversified production systems with crop rotation and inoculation with nitrogen-fixing bacteria will make great contributions to environmental and economic sustainability.

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“…In Brazil, inoculation of soybean with N‐fixing Bradyrhizobium spp. can meet the N demand of the crop, eliminating the need for N fertilizers (a cost saving of US$ 13 billion per year) with concomitant reductions in emissions of greenhouse gases (Zilli et al, 2021). Approximately, 78% of soybean cropping area in Brazil (36.5 million hectares) was inoculated in 2019/2020 season.…”

Section: Functions Of Soil Microbial Inoculantsmentioning

confidence: 99%

Soil microbial inoculants for sustainable agriculture: Limitations and opportunities

O’Callaghan

Ballard

Wright

2022

Soil Use and Management

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The burgeoning global market for soil microbial inoculants for use in agriculture is being driven by pressure to increase sustainable crop production by managing pests and diseases without environmental impacts. Microbial inoculants, based predominantly on bacteria and fungi, are applied to soil as alternatives to conventional inorganic fertilizers (biofertilizers) or to carry out specific functions including biocontrol of pests and diseases (biopesticides), or for bioremediation and enhancement of soil characteristics. While some soil inoculants such as rhizobia How to cite this article: O'

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Biological N2 fixation and yield performance of soybean inoculated with Bradyrhizobium

Cited by 36 publications

References 48 publications

Realities and hopes in the application of microbial tools in agriculture

Realities and hopes in the application of microbial tools in agriculture

Crop rotation and inoculation increase soil bradyrhizobia population, soybean grain yields, and profitability

Soil microbial inoculants for sustainable agriculture: Limitations and opportunities

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