Plant growth-promoting rhizobacteria inoculation and nitrogen fertilization increase maize (Zea mays L.) grain yield and modified rhizosphere microbial communities

Salvo, Luciana P. Di; Cellucci, Gabriel C.; Carlino, M. Eugenia; Salamone, Inés E. García de

doi:10.1016/j.apsoil.2018.02.010

Cited by 109 publications

(53 citation statements)

References 54 publications

(66 reference statements)

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“…IAA is involved in cell division, root growth, and stem elongation, increasing the surface area of roots such that plants con obtain additional water and nutrients [35]. A large number of studies have focused on the role of PGPR in promoting crop growth [36,37]. However, bacteria are not a complete substitute for fertilizers.…”

Section: Discussionmentioning

confidence: 99%

Beneficial bacteria activate nutrients and promote wheat growth under conditions of reduced fertilizer application

et al. 2020

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Background: Excessive application of chemical fertilizer has exerted a great threat to soil quality and the environment. The inoculation of plants with plant-growth-promoting rhizobacteria (PGPR) has emerged as a great prospect for ecosystem recovery. The aim of this work to isolate PGPRs and highlights the effect of bacterial inoculants on available N/P/K content in soil and on the growth of wheat under conditions of reduced fertilizer application. Results: Thirty-nine PGPRs were isolated and tested for their growth-promoting potential. Thirteen isolates had nitrogen fixation ability, of which N9 (Azotobacter chroococcum) had the highest acetylene reduction activity of 156.26 nmol/gh. Eleven isolates had efficient phosphate solubilizing ability, of which P5 (Klebsiella variicola) released the most available phosphorus in liquid medium (231.68 mg/L). Fifteen isolates had efficient potassium solubilizing ability, of which K13 (Rhizobium larrymoorei) released the most available potassium in liquid medium (224.66 mg/L). In culture medium supplemented with tryptophan, P9 (Klebsiella pneumoniae) produced the greatest amount of IAA. Inoculation with the bacterial combination K14 + 176 + P9 + N8 + P5 increased the alkali-hydrolysed nitrogen, available phosphorus and available potassium in the soil by 49.46, 99.51 and 19.38%, respectively, and enhanced the N, P, and K content of wheat by 97.7, 96.4 and 42.1%, respectively. Moreover, reducing fertilizer application by 25% did not decrease the available nitrogen, phosphorus, and potassium in the soil and N/P/K content, plant height, and dry weight of wheat. Conclusions: The bacterial combination K14 + 176 + P9 + N8 + P5 is superior candidates for biofertilizers that may reduce chemical fertilizer application without influencing the normal growth of wheat.

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Section: Discussionmentioning

confidence: 99%

Beneficial bacteria activate nutrients and promote wheat growth under conditions of reduced fertilizer application

et al. 2020

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“…On the other hand, rhizobacteria have been described as having the ability to improve the mineral nutrition process in plants, facilitating its availability, and increasing nutriment absorption, such as N, P and chelating ions, as Fe (Kumar-Solanki et al, 2014;Singh et al, 2018). In that respect, several authors have pointed out the importance of using rhizobacterial strains of the genus Pseudomonas as biofertilizer agents because of their capacity to stimulate growth and/or productivity in plants of economic interest, such as tomato (Hernández-Montiel et al, 2017), habanero pepper (Chiquito-Contreras et al, 2017), bell pepper (Bacilio et al, 2016), potato (Arseneault et al, 2015), soybean (Rubina et al, 2018, wheat (Imperiali et al, 2017), maize (Di Salvo et al, 2018), among others.…”

Section: Resultsmentioning

confidence: 99%

“…Por otra parte, se ha descrito que las rizobacterias poseen la habilidad para mejorar el proceso de nutrición mineral de las plantas, al facilitar la disponibilidad y aumentar la absorción de nutrimentos como N, P y quelatización de iones como el Fe (Kumar-Solanki et al, 2014;Singh et al, 2018). Al respecto, diversos autores han señalado la importancia de utilizar cepas rizobacterianas del género Pseudomonas como agentes biofertilizantes, debido a su capacidad para estimular el crecimiento vegetal y/o productividad de plantas de interés económico como: tomate (Hernández-Montiel et al, 2017), chile habanero (Chiquito-Contreras et al, 2017), pimiento morrón (Bacilio et al, 2016), papa (Arseneault et al, 2015), soya (Rubina et al, 2018), trigo (Imperiali et al, 2017), maíz (Di Salvo et al, 2018), entre otros.…”

Section: Resultsunclassified

Respuesta morfo-productiva de plantas de pimiento morrón biofertilizadas con Pseudomonas putida y dosis reducida de fertilizantes sintéticos en invernadero

Hernández-Montiel

Murillo-Amador

Chiquito-Contreras

et al. 2020

Terra

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La población mundial genera un alto consumo de alimentos, situación que provoca el incremento del uso de fertilizantes sintéticos, los cuales, son costosos y contaminan al medio ambiente. Las bacterias rizosféricas son una alternativa a la aplicación de fertilizantes sintéticos, debido a que estimulan el crecimiento y la productividad de las plantas, no contaminan al medio ambiente y su aplicación es de bajo costo. El objetivo de este estudio fue determinar el efecto de la inoculación de tres cepas rizobacterianas de Pseudomonas putida y aplicación de dos concentraciones de fertilización sintética sobre parámetros morfológicos y rendimiento de fruto en plantas de pimiento morrón variedad ‘California Wonder’ en condiciones de invernadero. Las plantas fueron inoculadas con tres rizobacterias de P. putida catalogadas como FA-8, FA-56 y FA-60 de manera individual y combinada. La concentración de la fertilización sintética fue del 100 y 75%. Se determinó la altura, el diámetro de tallo, longitud y volumen de raíz, biomasa fresca y seca, rendimiento y contenido de solidos solubles totales de fruto y población bacteriana. Los resultados indican que las bacterias y las dosis de fertilización sintética incrementaron todos los parámetros morfológicos y de productividad del pimiento morrón. El uso de P. putida como un bio-fertilizante puede ser importante dentro de la producción sustentable de cultivos hortícolas como el pimiento morrón.

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“…Moreover, the benefits of nitrogen fertilization are only short term in highly weathered tropical soils, with accelerated loss due to leaching and volatilization, along with the risk of soil and water contamination by nitrate additions (Hungria et al, 2016;Pedreira et al, 2017). For this reason, it is important to develop agricultural practices to maintain or even increase production with greater sustainability (Di Salvo et al, 2018). In this context, the use of biological inputs to improve the efficiency of nitrogen fertilizers is an alternative to the cultivation of grasses in tropical regions, in addition to reducing environmental risks (Bounaffaa et al, 2018;Martins et al, 2018;Numan et al, 2018;Oliveira et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Mitigation of Mombasa Grass ( Megathyrsus maximus ) Dependence on Nitrogen Fertilization as a Function of Inoculation with Azospirillum brasilense

Leite

Santos

et al. 2019

Rev. Bras. Ciênc. Solo

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Using biological inputs to improve the efficiency of nitrogen fertilizers represents an alternative for the cultivation of grasses in tropical regions. Azospirillum brasilense is a species of plant growth promoting bacteria widely studied and used in inoculants. Thus, this study aimed to evaluate the performance of Mombasa grass (Megathyrsus maximus) in association with A. brasilense and nitrogen (N) fertilization.The study was conducted under field conditions in Araguaína-Tocantins State, between December 2017 and May 2018. The treatments were arranged in randomized blocks, in a 5 × 2 factorial arrangement, with five doses of N fertilization (0, 25, 50, 75, and 100 kg ha -1 ) combined with two inoculation treatments (inoculated and non inoculated), in four replicates. For the number of tillers and root production, the inoculation efficiency varied as a function of the supplied N doses. However, the percentage of leaf N was higher for inoculated plants regardless of the application of nitrogen. In the absence of nitrogen fertilization, it was possible to increase forage production by up to 36 % with inoculation.

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Plant growth-promoting rhizobacteria inoculation and nitrogen fertilization increase maize (Zea mays L.) grain yield and modified rhizosphere microbial communities

Cited by 109 publications

References 54 publications

Beneficial bacteria activate nutrients and promote wheat growth under conditions of reduced fertilizer application

Beneficial bacteria activate nutrients and promote wheat growth under conditions of reduced fertilizer application

Respuesta morfo-productiva de plantas de pimiento morrón biofertilizadas con Pseudomonas putida y dosis reducida de fertilizantes sintéticos en invernadero

Mitigation of Mombasa Grass ( Megathyrsus maximus ) Dependence on Nitrogen Fertilization as a Function of Inoculation with Azospirillum brasilense

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