Yield of upland rice as affected by nitrogen application and seed inoculation with diazotrophic bacteria

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dc.creatorNascente, Adriano Stephan
dc.creatorCarvalho, Maria da Conceição Santana
dc.date.accessioned2025-01-10T18:55:40Z
dc.date.available2025-01-10T18:55:40Z
dc.date.issued2018
dc.description.abstractThe use of nitrogen-fixing diazotrophic bacteria such as Azospirillum spp. could be an important alternative to reduce nitrogen fertilization in upland rice field. The objective of this study was to determine the effect of nitrogen application at topdressing and seed inoculation with strains of Azospirillum spp. on the plant biomass, foliar nutrient concentration, yield components, grain yield and nutrient concentration of grains in upland rice under a no-tillage system. The field experiments were conducted for two growing seasons 2015/2016 and 2016/2017 in the Cerrado Region of Brazil. The experimental design was a complete randomized block in a factorial 4x4 scheme with three replications. The treatments consisted of inoculated seeds of rice with peat containing the strains of Azospirillum spp. [Azospirillum brasilense 245, Hernaspirillum seropedicae Z94, commercial Azospirillum brasilense (Ab V5 and Ab V6 strains), and without Azospirillum] with four doses of N (0, 40, 80 and 120 kg ha-1) applied as urea at topdressing. The use of diazotrophic bacteria in high level of soil organic matter did not increase yield components, grain yield and nutrients in the leaves and grains of upland rice. Increasing rates of N increased N, P, K, Ca, Mg, S, Cu and Mn in leaves; N, P, Ca, Cu and Fe in the grains, biomass, panicle per meter, grain per panicle and grain yield of upland rice. In this sense, the rate of 120 kg ha-1 of N provided the highest rice grain yield (4,413 kg ha-1).
dc.identifier.citationNASCENTE, Adriano Stephan; CARVALHO, Maria da Conceição Santana. Yield of upland rice as affected by nitrogen application and seed inoculation with diazotrophic bacteria. Australian Journal of Crop Science, Brisbane, v. 12, n. 9, p. 1519-1527, 2018. DOI: 10.21475/ajcs.18.12.09.PNE1290. Disponível em: https://www.cropj.com/nascente_12_9_2018_1519_1527.pdf. Acesso em: 12 dez. 2024.
dc.identifier.doi10.21475/ajcs.18.12.09.PNE1290
dc.identifier.issn1835-2693
dc.identifier.issne- 1835-2707
dc.identifier.urihttp://repositorio.bc.ufg.br//handle/ri/26314
dc.language.isoeng
dc.publisher.countryAustrália
dc.publisher.departmentEscola de Agronomia - EA (RMG)
dc.rightsAcesso Aberto
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectOryza sativa L.
dc.subjectBioagent
dc.subjectNitrogen-fixing
dc.subjectAzospirillum spp.
dc.subjectSustainable development
dc.titleYield of upland rice as affected by nitrogen application and seed inoculation with diazotrophic bacteria
dc.typeArtigo

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