Data/hora: 08/06/2024 10:49:28

Biblioteca(s): | Embrapa Agrobiologia.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 04/11/2022
Data da última atualização: | 04/11/2022
Autoria: | SILVA, L. I. da; OLIVEIRA, I. P. de; JESUS, E. da C.; PEREIRA, M. C.; PASQUAL, M.; ARAUJO, R. C. de; DORIA, J.
Afiliação: | LEANDRO ISRAEL DA SILVA, UFLA; INDIRA PEREIRA DE OLIVEIRA, UFLA; EDERSON DA CONCEICAO JESUS, CNPAB; MARLON CORREA PEREIRA, UFLA; MOACIR PASQUAL, UFLA; RONILSON CARLOS DE ARAUJO, UFLA; JOYCE DORIA, UFLA.
Título: | Fertilizer of the future: beneficial bacteria promote strawberry growth and yield and may reduce the need for chemical fertilizer.
Ano de publicação: | 2022
Fonte/Imprenta: | Agronomy, v. 12, n. 10, 2465, 2022.
ISSN: | 2073-4395
DOI: | https://doi.org/10.3390/agronomy12102465
Idioma: | Inglês
Conteúdo: | Agriculture is a fundamental activity for human development. However, its sustainable practice is required to ensure the perpetuity of future resources. In this way, bacteria can benefit crops by making available nutrients and metabolites, mainly contributing to reducing the demand for chemical fertilizers. This study aimed to evaluate the biofertilizing capacity of Azospirillum brasilense, Bacillus megaterium, and Brevibacillus fluminis and their effects on improving the physiological and morphoanatomical properties of strawberry seedlings. In vitro tests were performed to evince their potential to supply nutrients (P and K) and produce siderophores and indole-acetic acid. In an inoculation experiment, these strains were inoculated in isolation and mixed in pairs and triples. This experiment was carried out in a greenhouse in a completely randomized design (CRD). The inoculated treatments were fertilized with 30% N and P demands; the uninoculated control received 30% and 100% of these demands. Leaf gas exchange, total chlorophylls, and crown diameter were evaluated during cultivation. After 138 days, leaf number, nutrient content, root length, root and shoot fresh and dry weight, and total seedlings were evaluated. The bacteria tested positive in all in vitro evaluations except for siderophore production. The strawberry responded positively to inoculation. The inoculation, either in isolation or in a mixture, improved stomatal conductance, leaf transpiration, internal CO2 concentration, leaf N and Mg contents, crown diameter, leaf area, and root elongation. We can conclude that the intermediation of microorganisms improves nutrient use efficiency and reduces the strawberry?s fertilizer demand by up to 70%, leading to plant development and yields comparable to complete fertilization.
Palavras-Chave: | Metabolic screening; Microbial consortium; Plant microorganism interaction.
Thesaurus Nal: | Gas exchange; Sustainable agriculture.
Categoria do assunto: | S Ciências Biológicas
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (42068-1) - UPC - AP - DD -  -  -  - DIS