The influence of topdressing nitrogen on Azospirillum spp. inoculation in maize crops through meta-analysis

Zeffa, Douglas Mariani; Fantin, Lucas Henrique; Santos, Odair José Andrade Pais dos; Oliveira, André Luíz Martinez de; Canteri, Marcelo Giovanetti; Scapim, Carlos Alberto; Gonçalves, Leandro Simões Azeredo

doi:10.1590/1678-4499.2017273

Cited by 28 publications

(16 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, verifying the influence of inoculation with Azospirillum spp. in maize, interesting results were found by Zeffa et al (2018), where the inoculated treatment out-yielded the control by 651 kg ha −1 . In general, it is believed that the production of phytohormones by PGPR is one of the main mechanisms of action on the development of the host plant, whose effects are more prominent on the root system (Olanrewaju, Glick & Babalola, 2017;Puente et al, 2018).…”

Section: Discussionmentioning

confidence: 94%

Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018

Zeffa

Fantin

Koltun

et al. 2020

PeerJ

View full text Add to dashboard Cite

Background The co-inoculation of soybean with Bradyrhizobium and other plant growth-promoting rhizobacteria (PGPR) is considered a promising technology. However, there has been little quantitative analysis of the effects of this technique on yield variables. In this context, the present study aiming to provide a quantification of the effects of the co-inoculation of Bradyrhizobium and PGPR on the soybean crop using a meta-analysis approach. Methods A total of 42 published articles were examined, all of which considered the effects of co-inoculation of PGPR and Bradyrhizobium on the number of nodules, nodule biomass, root biomass, shoot biomass, shoot nitrogen content, and grain yield of soybean. We also determined whether the genus of the PGPR used as co-inoculant, as well as the experimental conditions, altered the effect size of the PGPR. Results The co-inoculation technology resulted in a significant increase in nodule number (11.40%), nodule biomass (6.47%), root biomass (12.84%), and shoot biomass (6.53%). Despite these positive results, no significant increase was observed in shoot nitrogen content and grain yield. The response of the co-inoculation varied according to the PGPR genus used as co-inoculant, as well as with the experimental conditions. In general, the genera Azospirillum, Bacillus, and Pseudomonas were more effective than Serratia. Overall, the observed increments were more pronounced under pot than that of field conditions. Collectively, this study summarize that co-inoculation improves plant development and increases nodulation, which may be important in overcoming nutritional limitations and potential stresses during the plant growth cycle, even though significant increases in grain yield have not been evidenced by this data meta-analysis.

show abstract

Section: Discussionmentioning

confidence: 94%

Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018

Zeffa

Fantin

Koltun

et al. 2020

PeerJ

View full text Add to dashboard Cite

show abstract

“…The use of these PGPB is growing, particularly in Latin America, for different crops (Souza et al, 2015;Martins et al, 2018;Galindo et al, 2019a). Several PGPB genera show association with different species of agricultural importance, such as Azospirillum, Bacillus and Pseudomonas (Zeffa et al, 2018). These bacteria can stimulate plant growth by a series of mechanisms, including but not restricted, the production of phytohormones, such as salicylic acid, gibberellins, cytokinins and indole-3-acetic acid (IAA) (Cassán and Diaz-Zorita, 2016;Fukami et al, 2017), phosphate solubilization (Ludueña et al, 2018;Qi et al, 2018), nutrient availability increase (Galindo et al, 2018b), production of indolic compounds and siderophores (Ambrosini and Passaglia, 2017), increase on 1−aminocyclopropane−1−carboxylate deaminase activity (Ambrosini and Passaglia, 2017), biological nitrogen fixation (BNF) (Pankievicz et al, 2015), biological control of plants, production of natural antibiotics and protective effect against secondary soil phytopathogens (Zhou et al, 2016;Mishra and Arora, 2018;Shameer and Prasad, 2018).…”

Section: Introductionmentioning

confidence: 99%

Corn Yield and Phosphorus Use Efficiency Response to Phosphorus Rates Associated With Plant Growth Promoting Bacteria

Pereira

Galindo

Gazola

et al. 2020

Front. Environ. Sci.

View full text Add to dashboard Cite

The use of plant growth promoting bacteria (PGPB) that can solubilize phosphorus (P) has shown potential to improve nutrient availability in grass crops such as corn (Zea mays L.) This study was developed to investigate if inoculation with Azospirillum brasilense, Bacillus subtilis or Pseudomonas fluorescens associated with P 2 O 5 rates can improve phosphorus use efficiency (PUE) reflecting on greater corn development and yield. The field trial was set up in a Rhodic Hapludox under no-till system under Savannah conditions, in a completely randomized block design with four replicates. Treatments were tested in a full factorial design and included: (i) five P 2 O 5 rates (0 to 105 kg ha −1) and (ii) four PGPB seed inoculation (Control-without inoculation, A. brasilense, B. subtilis or P. fluorescens). Inoculation was found to increase grain yield by 39.5, 29.1, and 15.9% when B. subtilis was inoculated in the absence of P 2 O 5 rates and associated with 17.5 and 70 kg P 2 O 5 ha −1 and by 34.7% when A. brasilense was inoculated with application of 105 kg P 2 O 5 ha −1. In addition, inoculation with B. subtilis and A. brasilense were found to increase P uptake, benefiting productive components development, leading to an improved PUE, and greater corn grain yield. The results of this study showed positive improvements in P uptake as a result of B. subtilis and A. brasilense inoculation, with an increase of 100.5 and 54.6% on PUE, respectively; while the P. fluorescens inoculation were less evident. Further research should be conducted under biotic or/and abiotic conditions such as attack of pathogens and insects, drought, salinity, water flooding, low and high temperature to better understand the role of PGPB, inoculated alone or in combination as the co-inoculated method.

show abstract

“…strains tested decreased the number of maize grains by 45.34% and the total grains weight by 31.40%. In fact, Zeffa et al (2018) reported no significant increase in grain yield when inoculation with bacteria from the Azospirillum genus was realized together with nitrogen fertilization, but did not observe a significant decrease in production. According to research results of Steenhoudt and Vanderleyden (2006), Nif gene is inactive in excess N 2 .…”

Section: Nitrogen Dosesmentioning

confidence: 92%

A Malian native Azospirillum sp. Az6-based biofertilizer improves growth and yield of both rice (Oryza sativa L.) and maize (Zea mays L.)

MallÃ¹,

KassoguÃ²,

Babana³

et al. 2020

Afr. J. Microbiol. Res.

View full text Add to dashboard Cite

The objective of this study was to improve rice and maize yields using native Azospirillum-based biofertilizer. To reach this objective, samples of rhizosphere soil, non-rhizosphere soil and roots of maize plants were collected from the particular locations of Samanko and Bamako of the south Mali. Thirty-three different colonies of bacteria were isolated from the different samples. Based on their better growth in nitrogen free semi-solid medium, their morphological, biochemical and plant growth promotion characteristic, ten bacterial isolates were identified as Azospirillum isolates following the Bergey's Manual of Determinative Bacteriology. Ten isolates were selected: Az1, Az2, Az3, Az4, Az5, Az6, Az7, Az8, Az9 and Az10. Strain Az6 showed great potential on both rice and maize production. Therefore, this strain is suggested for large scale rice and maize fields' application. While the Azospirillum sp. Az5, Az6 and Az10 strains are suggested for large scale application in maize field, which may reduce production cost. Top dressing with 25% of the recommended nitrogen-fertilizer was found to decrease maize grain yield.

show abstract

The influence of topdressing nitrogen on Azospirillum spp. inoculation in maize crops through meta-analysis

Cited by 28 publications

References 40 publications

Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018

Effects of plant growth-promoting rhizobacteria on co-inoculation with Bradyrhizobium in soybean crop: a meta-analysis of studies from 1987 to 2018

Corn Yield and Phosphorus Use Efficiency Response to Phosphorus Rates Associated With Plant Growth Promoting Bacteria

A Malian native Azospirillum sp. Az6-based biofertilizer improves growth and yield of both rice (Oryza sativa L.) and maize (Zea mays L.)

Contact Info

Product

Resources

About