Impact of historical soil management on the interaction of plant-growth-promoting bacteria with maize (Zea mays L.).

Autor:	Guidinelle RB; Federal University of Espírito Santo, Department of Agronomy, Alto Universitário, s/n, Guararema, 29.500-000, Alegre, ES, Brazil.; Post Graduate Programme in Agronomy, Center for Agricultural Sciences and Engineering, Federal University of Espírito Santo, Alto Universitário, s/n, Guararema, 12 29.500-000, Alegre, ES, Brazil., Burak DL; Federal University of Espírito Santo, Department of Agronomy, Alto Universitário, s/n, Guararema, 29.500-000, Alegre, ES, Brazil., Rangel OJP; Federal Institute of Espírito Santo/IFES, Campus Alegre, BR 482, Km 7, 29500-00, Alegre/Rive, Espírito Santo, Brazil., Peçanha AL; Federal University of Espírito Santo, Department of Biology, Alto Universitário, s/n, Guararema, 29.500-000, Alegre, ES, Brazil., Passos RR; Federal University of Espírito Santo, Department of Agronomy, Alto Universitário, s/n, Guararema, 29.500-000, Alegre, ES, Brazil., Rocha LOD; Laboratory of Cell and Tissue Biology and Center for Development of Biological Inputs for Agriculture, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602, Campos dos Goytacazes, Rio de Janeiro, Brazil., Olivares FL; Laboratory of Cell and Tissue Biology and Center for Development of Biological Inputs for Agriculture, Universidade Estadual do Norte Fluminense Darcy Ribeiro, 28013-602, Campos dos Goytacazes, Rio de Janeiro, Brazil., Mendonça ES; Federal University of Espírito Santo, Department of Agronomy, Alto Universitário, s/n, Guararema, 29.500-000, Alegre, ES, Brazil.
Jazyk:	angličtina
Zdroj:	Heliyon [Heliyon] 2024 Mar 29; Vol. 10 (7), pp. e28754. Date of Electronic Publication: 2024 Mar 29 (Print Publication: 2024).
DOI:	10.1016/j.heliyon.2024.e28754
Abstrakt:	Edaphic factors can modulate the effects of microbial inoculants on crop yield promotion. Given the potential complexity of microbial inoculant responses to diverse soil management practices, we hypothesize that sustainable management of soil and water irrigation may improve soil quality and enhance the effects of plant growth-promoting bacteria (PGPB). Consequently, the primary objective was to assess the effectiveness of microbial inoculants formulated with Herbaspirillum seropedicae (Hs) and Azospirillum brasilense (Ab) on maize growth in soils impacted by different historical conservation management systems. We evaluated two soil management systems, two irrigation conditions, and four treatments: T0 - without bioinoculant and 100% doses of NPK fertilization; T1 - Hs + humic substances and 40% of NPK fertilization; T2 - Ab and 40% of NPK fertilization; T3 - co-inoculation (Hs + Ab) and 40% of NPK fertilization. Using a reduced fertilization dose (40% NPK) associated with microbial inoculants proved efficient in increasing maize shoot dry mass : on average, there was a 16% reduction compared to the treatment with 100% fertilization. In co-inoculation (Hs + Ab), the microbial inoculants showed a mutualistic effect on plant response, higher than isolate ones, especially increasing the nitrogen content in no-tillage systems irrigated by swine wastewater. Under lower nutrient availability and higher biological soil quality, the microbial bioinputs positively influenced root development, instantaneous water use efficiency, stomatal conductance, and nitrogen contents. Competing Interests: The authors declare that there is no competing interest in this research. (© 2024 The Authors. Published by Elsevier Ltd.)
Databáze:	MEDLINE
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