Inoculation of diazotrophic bacteria modifies the growth rate and grain yield of maize at different levels of nitrogen supply

Breda, F.; Alves, Gabriela Cavalcanti; Lopez, Bruna Daniela Ortiz; Aragão, Alison Rocha de; Araújo, Adelson Paulo; Reis, Verônica Massena

doi:10.1080/03650340.2019.1702164

Cited by 11 publications

(7 citation statements)

References 39 publications

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“…However, for maize in rotation with wheat in a continuous NT system, inoculation caused some benefit only under higher N fertilizer input. Therefore, the benefits of maize seed inoculation with A. brasilense , when in fact occurred, had no relationship with the N fertilizer economy that was pointed out in other studies in which lower maize yields were obtained (Breda et al., 2019; Hungria et al., 2010; Pedrosa et al., 2020).…”

Section: Resultsmentioning

confidence: 91%

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Seed inoculation with Azospirillum brasilense and nitrogen fertilization for no‐till cereal production

et al. 2020

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Cereal crops have a high N requirement in a high‐yield environment. However, N use efficiency is still low in agricultural production systems and little is known about the effects of inoculation with Azospirillum brasilense in a high‐yield environment. A field experiment was conducted from 2012 to 2018 with a maize (Zea mays L.)–wheat (Triticum aestivum L.) rotation under a continuous no‐till in southern Brazil. Seeds were inoculated with A. brasilense (strains Ab‐V5 and Ab‐V6) and different levels of N fertilization were used in top dressing. Seed inoculation provided slight changes in N, P, and K concentrations in leaves and grains of maize and wheat. Increasing N input increased the leaf and grain N concentration and the maize and wheat grain yields. Seed inoculation caused varied responses on cereals in different cropping seasons. Wheat was more affected by inoculation in response to N application than maize. Rainfall distribution during the growing seasons possibly interfered on crop responses with inoculation between years and N fertilization levels. Under a similar N input, inoculation resulted in an average increase of 454 kg ha−1 yr−1 of maize and 242 kg ha−1 yr−1 of wheat by applying a higher N rate to the maize and a lower N rate to the wheat. An additional gain of US$409.72 ha−1 (2012–2018) was also achieved using this strategy. Although the possibility of inoculation causing economy with N fertilization in wheat was evident, for maize in rotation with wheat, A. brasilense inoculation was apparently more viable under higher N fertilizer input.

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Section: Resultsmentioning

confidence: 91%

“…Under field evaluations, several benefits of Azospirillum sp. inoculation for crops have been reported (Breda et al., 2019; Cassán & Diaz‐Zorita, 2016). Crop responses to the inoculation of Azospirillum sp.…”

Section: Introductionmentioning

confidence: 99%

Seed inoculation with Azospirillum brasilense and nitrogen fertilization for no‐till cereal production

et al. 2020

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“…One of the major challenges of modern agriculture is to develop production systems that improve yields in sustainable ways, seeking efficiency of inputs (Breda et al, 2020). Current environmental concerns lead to the search for strategies to maximize the efficiency of nitrogen (N) fertilization in maize crop (Kramberger et al, 2009;Setiyono et al, 2011;Ciampitti and Vyn, 2014), because under Mediterranean conditions irrigated maize crops are often associated with the risk of nitrate pollution (Salmerón et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

A 3-year field study to assess winter cover crops as nitrogen sources for an organic maize crop in Mediterranean Portugal

Perdigão

Pereira

Moreira

et al. 2021

European Journal of Agronomy

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“…Nitrate reductase activity (NRa) was assessed using the in vivo method described by Jaworski (1971) and adapted for maize according to Breda et al (2020). The amount of NO 2 − produced was measured, to estimate NRa, and expressed as •h −1 •g −1 fresh weight.…”

Section: Nitrate Reductase Activity (Nra -Ec 1711)mentioning

confidence: 99%

Root development and nitrogen acquisition of maize inoculated with two species of diazotrophs

Carvalho,

Alves,

Alves

et al. 2023

Bragantia

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Plant-growth-promoting bacteria of the genus Azospirillum and Herbaspirillum can improve crop yields of maize in tropical environments. The main mechanism proposed for its promotion is related to the auxins produced by these species. The aim of this study was to compare the maize growth response of inoculation using two species, Azospirillum baldaniorum Sp245 (Ab-Sp245) and Herbaspirillum seropedicae ZAE94 (Hs-ZAE94) during the initial growth under controlled conditions. A pot experiment was conducted with five harvests measuring bacterial counts, root morphology, biomass, and nitrogen content, and soluble metabolites for 38 days. Depending on the harvest period, a differential growth response between the two strains test was compared to the control. Plants use the bacterium applied to improve nitrogen acquisition and transform it into higher biomass and nitrogen accumulation, especially for Ab-Sp245. On the other side, Hs-ZAE94 altered the soluble metabolites resulting in higher NO 3 -, NH 4 + , and N-amino and lower soluble fractions compared to Ab-Sp245 and the control. The observed plant-bacteria interaction is closely fine-tuned and regulated by the strain used and differences in growth promotion effects cannot solely attributed to the root morphology.

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Inoculation of diazotrophic bacteria modifies the growth rate and grain yield of maize at different levels of nitrogen supply

Cited by 11 publications

References 39 publications

Seed inoculation with Azospirillum brasilense and nitrogen fertilization for no‐till cereal production

Seed inoculation with Azospirillum brasilense and nitrogen fertilization for no‐till cereal production

A 3-year field study to assess winter cover crops as nitrogen sources for an organic maize crop in Mediterranean Portugal

Root development and nitrogen acquisition of maize inoculated with two species of diazotrophs

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