Improving Sustainable Field-Grown Wheat Production With Azospirillum brasilense Under Tropical Conditions: A Potential Tool for Improving Nitrogen Management

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dc.contributor.authorGalindo, Fernando Shintate
dc.contributor.authorPagliari, Paulo Humberto
dc.contributor.authorFernandes, Guilherme Carlos [UNESP]
dc.contributor.authorRodrigues, Willian Lima [UNESP]
dc.contributor.authorBoleta, Eduardo Henrique Marcandalli [UNESP]
dc.contributor.authorJalal, Arshad [UNESP]
dc.contributor.authorCéu, Elaine Garcia Oliveira [UNESP]
dc.contributor.authorLima, Bruno Horschut de [UNESP]
dc.contributor.authorLavres, José
dc.contributor.authorTeixeira Filho, Marcelo Carvalho Minhoto [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversity of Minnesota
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-28T19:51:26Z
dc.date.available2022-04-28T19:51:26Z
dc.date.issued2022-02-17
dc.description.abstractSustainable intensification of cropping systems requires to increase productivity and nutrients use efficiency while reducing negative impacts of agricultural management practices on ecosystem and environment. Plant growth-promoting rhizobacteria (PGPR) inoculations are considered one of the most promising and safe strategy to alleviate environmental alterations in context of climatic extremes to improve plant nutrition while reducing dependency of nitrogen (N) fertilizer application. This study investigated the interactive effects of N levels and inoculation with A. brasilense on plant biomass, grain yield, agronomic efficiency (AE) of applied N, apparent N-fertilizer recovery (AFR) and N content in plant targeting economic feasibility of wheat production system. The field trial tested 4 N application levels applied in side-dressing (control, low, average and high; named 0, 50, 100 and 200 kg N ha−1) and two inoculations (without and with A. brasilense seed inoculation). The results exhibited that inoculation with A. brasilense enhanced AE, AFR and N uptake in wheat plants with increased root and shoot N accumulation and grain N accumulation under average and high N application levels. In addition, inoculation increased root and shoot biomass, leading to a yield increase of 10.3% compared with non-inoculated plants. Wheat plant inoculation associated with application of the average N level provided the greatest profitability. Furthermore, results showed that reducing N fertilization from 100 to 50 kg N ha−1 along A. brasilense inoculation led to an increase in operating profit of 10.5%. In view of low economic cost, ease of application, and high probability of a positive response by wheat crops, even associated with different N application levels, the inoculation with A. brasilense prone to be a key sustainable management practice to improve wheat production under tropical conditions. This practice has the potential to increase wheat grain yield, N use and uptake, and overall farm profitability.en
dc.description.affiliationCenter for Nuclear Energy in Agriculture University of São Paulo
dc.description.affiliationDepartment of Soil Water and Climate Southwest Research and Outreach Center University of Minnesota
dc.description.affiliationDepartment of Plant Health Rural Engineering and Soils São Paulo State University
dc.description.affiliationUnespDepartment of Plant Health Rural Engineering and Soils São Paulo State University
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.identifierhttp://dx.doi.org/10.3389/fenvs.2022.821628
dc.identifier.citationFrontiers in Environmental Science, v. 10.
dc.identifier.doi10.3389/fenvs.2022.821628
dc.identifier.issn2296-665X
dc.identifier.scopus2-s2.0-85125751319
dc.identifier.urihttp://hdl.handle.net/11449/223567
dc.language.isoeng
dc.relation.ispartofFrontiers in Environmental Science
dc.sourceScopus
dc.subjectimproved nitrogen management
dc.subjectplant growth promoting rhizobacteria
dc.subjectsustainable crop production
dc.subjectTriticum aestivum
dc.subjecttropical agriculture
dc.titleImproving Sustainable Field-Grown Wheat Production With Azospirillum brasilense Under Tropical Conditions: A Potential Tool for Improving Nitrogen Managementen
dc.typeArtigo

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