Implications of Azospirillum brasilense inoculation and nutrient addition on maize in soils of the Brazilian Cerrado under greenhouse and field conditions

Ferreira, A.; Pires, Raphael Rezende; Rabelo, Paulo Gonçalves; Oliveira, Rayssa Camargo de; Luz, José Magno Queiróz; Brito, C.H.

doi:10.1016/j.apsoil.2013.05.020

Cited by 59 publications

(33 citation statements)

References 39 publications

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“…Dartora et al (2013) investigated the inoculation of seeds (without A. brasilense -Ab-V5, Herbaspirillum seropedicae -SmR1 and combination Ab-V5 and SMR1) with five levels of N (0, 40, 80, 120 and 160 kg•ha -1 ) and verified effects of inoculation only for stem diameter (vegetative and reproductive phase) and dry weight of shoots. Moreover, significant results for grain yield when inoculated with A. brasilense have been reported in several studies (Hungria et al 2010;Ferreira et al 2013;Quadros et al 2014).…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, Hungria et al (2010) evaluated the use of AZ on maize and observed an increase of 27% in yield compared to the control without inoculation. Ferreira et al (2013) analyzed the response of corn to AZ inoculation in soils of the Brazilian Cerrado and recorded yield increases of 14.9, 26.7 and 29.4% in the treatments P-K + AZ, P-K + AZ + 100 kg N and P-K + AZ + 200 kg N, respectively, when compared with the control (P-K). Quadros et al (2014) investigated the yield in three maize hybrids inoculated with a mixture of three Azospirillum species (A. brasilense, A. lipoferum and A. oryzae) and detected an interaction between hybrids and inoculation, obtaining a significantly increased yield only for hybrid P32R48, with increase of 750 kg•ha -1 .…”

Section: Lt Spolaor Et Al Introductionmentioning

confidence: 99%

“…Based on several studies, the contribution of Azospirillum to maize yield has shown contrasting results (Hungria et al 2010;Ferreira et al 2013;Repke et al 2013;Quadros et al 2014). Repke et al (2013) found that the application of A. brasilense (AZ) solution to seeds, with or without synthetic nitrogen levels, showed no effect on plant development and yield of maize.…”

Section: Lt Spolaor Et Al Introductionmentioning

confidence: 99%

“…Among these genera, Azospirillum is one of the best studied groups, with several ones related to the production of phytohormones that induce root growth and improve the absorption of water and nutrients by plants (Doornbos et al 2012). Furthermore, as well as rhizobia, Azospirillum bacteria are able to fix atmospheric nitrogen and thus can directly contribute to the nitrogen nutrition of various nonlegume species, promoting their growth and decreasing the use of nitrogen fertilizers without decreases in yield (Hungria et al 2010;Ferreira et al 2013).…”

Section: Lt Spolaor Et Al Introductionmentioning

confidence: 99%

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Plant growth-promoting bacteria associated with nitrogen fertilization at topdressing in popcorn agronomic performance

et al. 2016

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The variance analysis showed significant effects (p < 0.05) of inoculation (Londrina environment) and N rates (both environments) only for grain yield. There was no inoculation effect in the grain yield when inoculants were applied together with N-fertilization at topdressing. In the absence of N-fertilization at topdressing, the inoculants Masterfix L. and UEL promoted higher grain yield as compared to the uninoculated plants, with resulting increases of 13.21 and 26.61% in yield, respectively.

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Section: Resultsmentioning

confidence: 99%

Section: Lt Spolaor Et Al Introductionmentioning

confidence: 99%

Section: Lt Spolaor Et Al Introductionmentioning

confidence: 99%

Section: Lt Spolaor Et Al Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Plant growth-promoting bacteria associated with nitrogen fertilization at topdressing in popcorn agronomic performance

et al. 2016

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“…Similarly, another interesting and controversial issue is the use of fertilizers, especially nitrogen, together with Azospirillum inoculation. Although strains of Azospirillum can improve plant growth and development (Cassán et al, 2009;Hartmann and Bashan, 2009), some studies suggest that nutrient supplementation with mineral fertilizers is needed for greater grain yields (Díaz-Zorita and Fernández-Canigia, 2009), especially for maize (Mehnaz et al, 2010;Ferreira et al, 2013;Myresiotis et al, 2014), in which practices such as fertilization and pesticide application may impair efficacy of treatments with Azospirillum. Studies about the interaction among these practices in maize are restricted, mainly on field conditions.…”

Section: Introductionmentioning

confidence: 99%

Yield of maize hybrids: Is there any association among nitrogen rate, Azospirillum inoculation and fungicide treatment?

Morais¹,

Brito²,

BrandÃ£o³

et al. 2016

Afr. J. Agric. Res.

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Optimization of land use can be attained by incorporating technologies to crop production, such as the use of diazotrophic bacteria, fertilizers, and pesticides. Seed inoculation with Azospirillum is an alternative that favors the incorporation of green agriculture in regions of conventional farming, such as the Brazilian savannah (Cerrado). However, limited information is available about this bacterium's contribution to agriculture when other technologies are also incorporated. This study evaluated the performance of maize hybrids inoculated, or not, with Azospirillum brasilense, with or without fungicide applications, and subjected to different nitrogen rates under Cerrado field conditions. Each factor analyzed contributes to the increased maize grain yield. The use of inoculants containing plant growth promoting bacteria is a good option to ensure high yield of maize. Still, nitrogen should not be replaced, neither totally nor partially, by seed inoculation with Azospirillum. Fungicide applications should be done, as required, during maize cycle. Moreover, specific maize breeding programs should consider the affinity between Azospirillum strains and maize hybrids, mainly for regions with nitrogen deficient soils, like Cerrado. Thus, by incorporating additional technologies, maize crop farmers can optimize land use and, consequently, reduce the expansion into new agricultural areas.

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Improving maize sustainability with partial replacement of N fertilizers by inoculation with Azospirillum brasilense

et al. 2022

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Maize (Zea mays L.) is a major cereal crop worldwide and demands N fertilizers, which can be replaced partially by plant growth-promoting bacteria. In Brazil, inoculants carrying Azospirillum brasilense strains Ab-V5 and Ab-V6 have exponentially grown, but a quantitative study on the replacement of N fertilizer by inoculants is still missing. Under greenhouse conditions, we investigated the effects of A. brasilense cells and metabolites applied via seeds or leaf-sprayed at the V3 growth stage on roots and confirmed strong benefits in traits that improve the uptake of water and nutrients.In the field, 30 trials were performed at 13 sites in Brazil over 10 yr, comparing noninoculated and inoculated maize receiving 0, 50, 75, and 100% (90 kg ha -1 of N) of N fertilizer (urea) applied as side-dress 35 d after emergence. Overall, inoculation significantly increased grain yield by 3.1%. Increases were confirmed in lower and higher yield levels, subtropical and tropical conditions, and clayey and sandy soils, with low and higher soil organic carbon levels. Yield increases due to inoculation were statistically significant at all levels of N fertilizer, except for at 50%. Inoculation with the supply of 75% of N increased yield by 4.6% compared with the noninoculated counterpart and, noteworthy, did not differ statistically from the non-inoculated control receiving 100% of N. These results confirmed the feasibility of replacing 25% of N-fertilizer applied as side-dress by seed inoculation with A. brasilense, besides the possibility of avoiding the emission of 4.95 million Mg of CO 2 -e per year. INTRODUCTIONAccording to the most accepted theory, maize (Zea mays L.) originated in Mesoamerica, more specifically in Mexico, about 7,000 yr ago. From there, the crop spread worldwide, reaching the position of the most produced cereal for humanAbbreviations: CFU, colony-forming units; CO 2 -e, CO 2 equivalents; DAE, days after emergence; DYGS, dextrose yeast glucose sucrose; GHG, greenhouse gases; IAA, indole-acetic acid; NFb, nitrogen-free broth.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Implications of Azospirillum brasilense inoculation and nutrient addition on maize in soils of the Brazilian Cerrado under greenhouse and field conditions

Cited by 59 publications

References 39 publications

Plant growth-promoting bacteria associated with nitrogen fertilization at topdressing in popcorn agronomic performance

Plant growth-promoting bacteria associated with nitrogen fertilization at topdressing in popcorn agronomic performance

Yield of maize hybrids: Is there any association among nitrogen rate, Azospirillum inoculation and fungicide treatment?

Improving maize sustainability with partial replacement of N fertilizers by inoculation with Azospirillum brasilense

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