Diazotrophic bacteria inoculation associates with acids and nitrogen in corn

Araújo, Érica de Oliveira; Rocha, Juan Ricardo; Gerola, Juliana Guimaraes; Matte, Leandro Cecílio

doi:10.5897/ajps2016.1394

Cited by 2 publications

(2 citation statements)

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“…In this scenario, new technologies must be sought to reduce the use of nonrenewable sources in the production of industrial fertilizers and to obtain the highest corn crop productivity, concurrently with reducing the production costs and the emission of greenhouse gases. The use of diazotrophic bacteria has proved to promote significant improvement in the production of cereals in different production systems, either by seed inoculation or leaf spraying (Sala et al, 2008;Hungria et al, 2010;Araújo et al, 2014;Brum et al, 2016;Fukami et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

“…Several diazotrophic bacteria have been isolated in corn crop, and the most studied species so far belong to the genus Azospirillum and Herbaspirillum (Araújo et al, 2016;Brusamarello-Santos et al, 2017;Martins et al, 2017). These species perform atmospheric nitrogen fixation and grow associated with the rhizosphere of corn through symbiosis, thus contributing to nitrogen nutrition (Figueiredo et al, 2009) and promoting plant growth through the production of hormones (Novakowiski et al, 2011) such as auxins and gibberellins.…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen fertilization and inoculation with diazotrophic bacteria in corn intercropped with xaraés grass

Longhini

Andreotti

Souza

et al. 2017

Agraria

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The objective of this work was to evaluate the effect of nitrogen (N) fertilization doses with and without inoculation of seeds with Azospirillum brasilense in fall corn intercropped with Urochloa brizantha cv. Xaraés over the nutrition, the production and yield components of the corn crop, and the dry matter yield and crude protein levels of xaraés grass under irrigation in the Cerrado region. The experiment had a completely randomized block design with four replications in a 2 × 5 factorial scheme. The treatments consisted in inoculating or not the corn seeds with A. brasilense and five N doses (0, 30, 60, 90 and 120 kg ha-1 N). The inoculation of corn seeds with A. brasilense in intercropping with xaraés grass in the fall season increases nutrition, height growth of plants and corn production components, however, without effect on grain yield. Corn plants from seeds inoculated with A. brasilense lead to a lower production of dry mass of xaraés grass in intercropping. Nitrogen fertilization in the cover layer linearly increases the crude protein content of the xaraés grass up to the dose of 120 kg ha-1 N.

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