Inoculation with &lt;i&gt;Azospirillum brasilense&lt;/i&gt; on corn yield and yield components in an integrated crop-livestock system

Schaefer, Paulo Eugênio; Martin, Thomas Newton; Pizzani, Rodrigo; Schaefer, Elton Luiz

doi:10.4025/actasciagron.v41i1.39481

Cited by 6 publications

(7 citation statements)

References 21 publications

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“…Thus, the association of inoculation with 100 kg ha -1 of N may have met the need for this nutrient, resulting in significant differences. Schaefer et al (2019) and Brum et al (2016) attributed the increase in grain yield, grain mass and shoot dry mass to the use of A. brasilense.…”

Section: Resultsmentioning

confidence: 99%

“…Kurepin, Zaman and Pharis (2014) report that inoculation with A. brasilense increases grass biomass by 25%. For corn, Schaefer et al (2019) and Brum et al (2016) verified that the production of shoot biomass, yield and thousandgrain weight were higher due to inoculation of seeds with A. brasilense. In wheat, it was found that A. brasilense improves the initial characteristics of plant development, but these effects are reduced over time (KAZI et al, 2016;PICCININ et al, 2013).…”

Section: Introductionmentioning

confidence: 88%

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BLACK OAT AND RYEGRASS INOCULATED WITH Azospirillum brasilense IN CROP-LIVESTOCK SYSTEM

Brum¹,

Cunha

Martin

et al. 2021

Rev. Caatinga

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The success of the integrated crop-livestock system depends on the correct pasture management, particularly regarding nitrogen fertilization and grazing intensity. The objective of this study was to evaluate the total production of forage and the proportion of the botanical and structural components of black oat and annual ryegrass mixture. The experimental design was randomized blocks with three replicates and the treatments were arranged in a three-factorial scheme: seed inoculation (with and without Azospirillum brasilense inoculation), grazing management (conventional grazing, where the animals were kept in pasture with no control of pasture height; 30, 20 and 10 cm at the end of grazing, and a control without grazing), and nitrogen fertilization (0, 50 and 100 kg nitrogen ha-1). In treatments with pasture heights where grazing ended at 30, 20 and 10 cm, the height was monitored and biomass was collected when the animals entered and exited the plots. Manual separation of the components was used to determine the dry mass of green leaves, stems, senescent material and inflorescence. Total dry mass production was obtained based on the initial forage mass plus the daily accumulation rates. The proportion of structural components varied according to the different grazing managements, nitrogen doses and inoculation with Azospirillum brasilense. Biomass production of black oat and ryegrass mixture was increased by nitrogen application and Azospirillum brasilense inoculation.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 88%

BLACK OAT AND RYEGRASS INOCULATED WITH Azospirillum brasilense IN CROP-LIVESTOCK SYSTEM

Brum¹,

Cunha

Martin

et al. 2021

Rev. Caatinga

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“…Under greenhouse conditions, the inoculated plants showed greater biomass compared to non-inoculated plants due to the great BNF efficiency of the isolates resulting in indol-3-acetic acid production (Youseif, 2018) and the potential for biocontrol activity of fungal pathogens in maize such as Turcicum leaf rust (Exserohilum turcicum) and root rot (Rhizoctonia solani) (Marag & Suman, 2018). Discussions of structural and functional diversity of plant microbiota, as well as proteomic and hostspecific site analysis in maize, are available in the literature (Lade et al, 2018;Hartmann et al, 2019;Vidotti et al, 2019) In Brazil, the main genus of endophytic bacteria used in grasses, especially maize (Schaefer et al, 2018;Galindo et al, 2019;Zeffa et al, 2019) and pasture (Pedreira et al, 2017a;Bourscheidt et al, 2019;Leite et al, 2019), is Azospirillum spp. This genus, as well as Azobacter spp., is an associative bacteria that release part of the nitrogen fixed to the associated plant and, unlike symbiotic bacteria, they do not nodule (Hungria, 2011).…”

Section: Soil and Plant Microbiologymentioning

confidence: 99%

“…Studies were carried out to elucidate the effect of maize seed inoculation with Azospirillum brasilense under different nitrogen levels and/or efficiency of nitrogen utilization intercropped or not with pasture. Schaefer et al (2018) analyzed the maize inoculated or not with A. brasilense on a winter pasture (Avena strigosa + Lolium multiflorum Lam.) in an integrated system with a residual 10, 20, and 30 cm height post-grazing (continuous stocking) and fertilized with 0, 75, 150, 225 or 300 kg N ha -1 .…”

Section: Soil and Plant Microbiologymentioning

confidence: 99%

Recent advances in maize production in integrated systems: A review

et al. 2021

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Maize is an important crop around the world supporting food security, especially in developing countries. The increasing demand for food and renewable energy resources has been supported studies of competitiveness and complementarity interactions between trees, crops, and animals. Thus, the integrated systems should promote a synergic relationship between the components, resulting in greater production of crops, animals, and forestry. Our objective was to describe recent advances on maize production in integrated systems and how recent research can contribute to intensify and/or diversify the production system. The current literature supports the following appointments. The increase in the soil organic carbon in integrated systems improves the physical (density and aggregate stability), chemical (nutrient retention), and biological (greater diversity and microbial mass) properties. Great grain yield and input reduction are possible with the microbial inoculants' use. The inoculants' action is maximized when associated with fertilizers and/or biochar. The biochar acts as a soil conditioner, increasing the water and nutrients retention in the soil, favoring the maize growth. Maize can be grown in the understory (moderate shade), but productivity will be reduced. Thus, we identified the need for research on shading-tolerant genotypes, intercropped management to minimizes competition, quantification of the stratified light profile by a system component (tree, maize, and grass), and more complex and accurate mathematical models to support decisions in the integrated systems arrangements. Understanding these practices would encourage producers to enhance the use of integrated systems.

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“…Inoculation with A. brasilense increased Nitrogen Use Efficiency (NUE), maize grain yield and agronomic characteristic in the AS 1572 hybrid (Skonieski et al, 2019) also, there was no response in another hybrid; the use of this diazotrophic bacterium is viable even when high rates of N were applied (Galindo et al, 2016). However, Schaefer et al (2019) considered that A. brasilense helps plant growth and yield but does not replace the effect of N fertilization. Correa-Galeote et al (2016) suggested that the genotype of Andean starchy maize could be the main factor in controlling bacterial diversity in its rhizosphere, either in monoculture or in association with other plants.…”

Section: Introductionmentioning

confidence: 99%

Grain Yield of Maize Hybrids in Response to Inoculation with Azospirillum sp. under Nitrogen Limiting Conditions in Huaura, Peru

Teodoro-Cerna¹,

Mendoza-Nieto²,

Contreras-Liza³

2020

SAR

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This experiment was conducted to evaluate the effect of Azospirillum sp. inoculated with different nitrogen levels (0, 60, 90, 180 kg ha-1) on grain yield, yield components and agronomic traits of hybrid maize at the arid conditions of the central coast of Peru. The experimental design used was randomized complete block design with four replications per treatment, under the arrangement of subdivided plots, in which three corn hybrids were assigned to complete plots and four inoculant-N fertilization treatments, to the subplots. The results showed that for dose fertilization of 180 kg ha-1 of nitrogen (control), the grain yield of hybrid corn was similar as compared to 60-120 kg ha-1 N fertilization inoculated at 15 and 45 days with a native strain of Azospirillum sp., suggesting that the response in grain yield for hybrid corn can be balanced with nitrogen fertilization and inoculation with Azospirillum sp. 1x108 CFU mL-1 in conditions of arid soils, with possible impact on the use of this microorganism in the maize production system

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Inoculation with <i>Azospirillum brasilense</i> on corn yield and yield components in an integrated crop-livestock system

Cited by 6 publications

References 21 publications

BLACK OAT AND RYEGRASS INOCULATED WITH Azospirillum brasilense IN CROP-LIVESTOCK SYSTEM

BLACK OAT AND RYEGRASS INOCULATED WITH Azospirillum brasilense IN CROP-LIVESTOCK SYSTEM

Recent advances in maize production in integrated systems: A review

Grain Yield of Maize Hybrids in Response to Inoculation with Azospirillum sp. under Nitrogen Limiting Conditions in Huaura, Peru

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