Effect of seed inoculation with Azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage quality

Skonieski, Fernando Reimann; Viégas, Julio; Martin, Thomas Newton; Nörnberg, José Laerte; Meinerz, Gilmar Roberto; Tonin, Tiago João; Bernhard, Priscila; Frata, Marcela Tostes

doi:10.1590/s1806-92902017000900003

Cited by 22 publications

(25 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, inoculation benefits were obtained only for the AS 1572 hybrid. In experiments carried out in two harvests in the municipality of Erechim, RS, Brazil, [29] had already recorded the association of A. brasilense strains Ab-V5 and Ab-V6 with the Defender hybrid for silage. The authors also reported there were differences between the studied harvests and that, in the 2012/2013 harvest, positive effects were also obtained for the AS 1572 hybrid, as used in the present study.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Nitrogen Topdressing Fertilization and Inoculation of Seeds with Azospirillum brasilense on Corn Yield and Agronomic Characteristics

et al. 2019

Self Cite

View full text Add to dashboard Cite

Biological nitrogen fixation and plant hormone synthesis promoted by Azospirillum spp. bacteria play a role in enhancing crop productivity and reducing losses. This may constitute a strategy to enhance crop productivity and reducing losses, thereby increasing nitrogen fertilization efficiency. This research aimed to evaluate the effects of Azospirillum brasilense Ab-V5 and Ab-V6 strain inoculation and nitrogen fertilization on the agronomic characteristics and productivity of two maize hybrids (Zea mays L.) AS 1572 and AG 9030. Experiments were carried out at Santa Maria, RS, Brazil in the 2013/2014 and 2014/2015 growing seasons using a 2 × 2 × 5 factorial arrangement to distribute two maize hybrids, inoculated, or not, with Azospirillum brasilense, and five nitrogen doses (0, 60, 120, 240, and 480 kg ha−1). Kernel yield, mass, and dimensions, as well as kernel number on the cobs, stalk diameter, plant height, ear insertion height, prolificacy, nitrogen use efficiency (NUE), and their correlations were measured. Compared to uninoculated plants, higher kernel yield (p < 0.05) was observed for AS 1572 hybrid when inoculated with A. brasilense, with an increase of 0.978 Mg ha−1 or 10.95%. This effect was primarily due to the higher NUE rate and the increase (p < 0.05) in the number of kernels per cob. The AG 9030 hybrid showed no response to inoculation. A. brasilense inoculation increased the NUE rate of the AS 1572 hybrid in the condition N zero dose at N 60 kg ha−1 dose. Nitrogen fertilization increased crop productivity, notably by raising kernel mass and other productivity components, but reduced the NUE rate. The maximum technical efficiency obtained for the AS 1572 hybrid was of 10.705 Mg ha−1 with a N dose of 342 kg ha−1, whereas the AG 9030 hybrid produced a maximum grain yield of 10.089 Mg ha−1 with a dose of 350 kg ha−1 of N. We conclude that the inoculation with A. brasilense increases NUE, maize grain yield, and agronomic characteristic in the AS 1572 hybrid.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Other studies determined there was an interaction between N dose and inoculation with Azospirillum spp. [16,17,27,29]. These authors determined that positive responses to inoculation depend on the use of low or average doses of N in cover, increasing the efficiency of nitrogen fertilization in such conditions.…”

Section: Discussionmentioning

confidence: 99%

Effect of Nitrogen Topdressing Fertilization and Inoculation of Seeds with Azospirillum brasilense on Corn Yield and Agronomic Characteristics

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…Some results found in the literature highlight that, to obtain positive results, it is necessary to associate Azospirillum with nitrogen fertilization, because only the bacterium will not respond in a positive way (Hungria 2011, Skonieski et al 2017, Souza et al 2019. In addition to the biological fixation of nitrogen, A. brasilense produces some phytohormones that contribute to the growth of plants; however, maybe only phytohormones are not enough for a positive response to occur in the inoculated plant.…”

Section: Resultsmentioning

confidence: 99%

Azospirillum brasilense inoculation methods in corn and sorghum

Andrade

Zóz

Zoz

et al. 2019

Pesqui. Agropecu. Trop.

View full text Add to dashboard Cite

The Azospirillum brasilense inoculation is usually carried out via seed. However, this bacterium presents passive penetration in the plant, what makes it possible to inoculate the crops using other methods. This study aimed to evaluate the influence of A. brasilense inoculation methods on the emergence and initial growth of corn and sorghum, under greenhouse conditions. A randomized block design, with four replications, in a 4 x 2 factorial scheme, was used. The first factor consisted of a control treatment (without inoculation) and three inoculation methods: via seed, via sowing furrow and via leaf spray. The second factor was composed by two hybrids of corn and two of sorghum. The application of A. brasilense to the seed can reduce the emergence percentage and the emergence speed index of corn seedlings, depending on the genotype, but its application does not influence the initial growth of the plants. The A. brasilense inoculation via seed and via sowing furrow can reduce the emergence and increase the mean emergence time of sorghum seedlings, depending on the genotype. The A. brasilense inoculation via seed results in an increase in the dry mass of the root system of sorghum plants.

show abstract

“…It mostly forms a symbiotic association with plants. Several studies have shown the potential of Azospirillum for crop improvement [46][47][48][49]. Azospirillum-inoculated wheat seedlings developed good water status; fresh weight was higher from inoculated seeds than from non-inoculated seeds.…”

Section: Azospirillummentioning

confidence: 99%

Microbes as Biofertilizers, a Potential Approach for Sustainable Crop Production

2021

View full text Add to dashboard Cite

Continuous decline of earth’s natural resources and increased use of hazardous chemical fertilizers pose a great concern for the future of agriculture. Biofertilizers are a promising alternative to hazardous chemical fertilizers and are gaining importance for attaining sustainable agriculture. Biofertilizers play a key role in increasing crop yield and maintaining long-term soil fertility, which is essential for meeting global food demand. Microbes can interact with the crop plants and enhance their immunity, growth, and development. Nitrogen, phosphorous, potassium, zinc, and silica are the essential nutrients required for the proper growth of crops, but these nutrients are naturally present in insolubilized or complex forms. Certain microorganisms render them soluble and make them available to the plants. The potential microbes, their mode of action, along with their effect on crops, are discussed in this review. Biofertilizers, being cost effective, non-toxic, and eco-friendly, serve as a good substitute for expensive and harmful chemical fertilizers. The knowledge gained from this review can help us to understand the importance of microbes in agriculture and the ways to formulate these microbes as biofertilizers for sustainable crop production.

show abstract

Effect of seed inoculation with Azospirillum brasilense and nitrogen fertilization rates on maize plant yield and silage quality

Cited by 22 publications

References 29 publications

Effect of Nitrogen Topdressing Fertilization and Inoculation of Seeds with Azospirillum brasilense on Corn Yield and Agronomic Characteristics

Effect of Nitrogen Topdressing Fertilization and Inoculation of Seeds with Azospirillum brasilense on Corn Yield and Agronomic Characteristics

Azospirillum brasilense inoculation methods in corn and sorghum

Microbes as Biofertilizers, a Potential Approach for Sustainable Crop Production

Contact Info

Product

Resources

About