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 48 publications

(22 citation statements)

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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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“…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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“…Soybean N requirements have higher demand rates during pod development and grain filling (Hungria;Mendes, 2015), which are generally fulfilled by biological N fixation (BNF) through symbiosis with strains of Bradyrhizobium spp. (Zilli et al, 2021), in addition to N uptake from the soil (Zuffo et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Agronomic characteristics of soybean cultivars with late-season nitrogen application in supplementation to the inoculation of Bradyrhizobium spp.

et al. 2022

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Late season nitrogen (N) applications may serve as cultural practices to increase soybean yield and grain protein concentration in modern high-yielding cultivars. A study to evaluate the response of soybean cultivars to late N application in supplementation to Bradyrhizobium spp. inoculation was conducted in two Brazilian Cerrado agricultural soils with medium and high fertility during the 2019/2020 growing season. Treatments were arranged in a randomized block design in a 2×2×5 factorial scheme: two agricultural production environments [UFMS 1 (medium fertility) and UFMS 2 (high fertility)], two soybean cultivars (TMG 7067 IPRO and BMX Bônus IPRO), and five late N application rates (0, 50, 100, 150 and 200 kg N ha-1), with four replicates. Canonical correlation analysis (CCA) was used to investigate the interrelationships between the groups of independent (agricultural production environments, soybean cultivars, and N application rates) and dependent (soybean agronomic traits) variables. Nitrogen rates were applied in topdressing at the R5.3 soybean growth stage. Late N applications did not affect soybean agronomic traits (plant height, first pod height, pod number per plant, grain number per pod, and 1,000-grain mass) and did not increase the grain protein concentration or yield of the soybean cultivars, regardless of the fertility level of the agricultural area. We conclude that when efficient strains of Bradyrhizobium spp. are used in soybean cropping in medium- and high-fertility Cerrado soils, there is no need to apply late rates of N fertilizer.

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Biological N2 fixation and yield performance of soybean inoculated with Bradyrhizobium

Cited by 48 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

Soil microbial inoculants for sustainable agriculture: Limitations and opportunities

Agronomic characteristics of soybean cultivars with late-season nitrogen application in supplementation to the inoculation of Bradyrhizobium spp.

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