Assessing Forms of Application of Azospirillum brasilense Associated with Silicon Use on Wheat

Galindo, Fernando Shintate; Rodrigues, Willian Lima; Biagini, Antônio Leonardo Campos; Fernandes, Guilherme Carlos; Baratella, Eduardo Bianchi; Silva, Castro Alves da; Buzetti, Salatiér; Filho, Marcelo Carvalho Minhoto Teixeira

doi:10.3390/agronomy9110678

Cited by 19 publications

(12 citation statements)

References 69 publications

(58 reference statements)

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“…The use of agroecological practices such as inoculation by plant growth-promoting bacteria (PGPB) can represent a sustainable alternative for increase nutrient use efficiency in tropical agriculture (Galindo et al, 2018a(Galindo et al, ,b, 2019aMartins et al, 2018). 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).…”

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.

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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.

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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.

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“…Map created by using QGIS software and Google Earth program (http://qgis.osgeo.org) concluded the combined application of PGPR and Si amendment could be a feasible and effective approach to improve growth and salinity tolerance in coriander (Coriandrum sativum L.). Galindo et al (2019b) studied different A. brasilense inoculation methods combined with Ca and Mg silicate and reported that seed inoculation in combination with silicate application increased wheat grain yield by 6.7%. These results indicate a synergistic effect between A. brasilense inoculation and Si application on cereal grain yield.…”

Section: Core Ideasmentioning

confidence: 99%

Nutrient availability affected by silicate and Azospirillum brasilense application in corn–wheat rotation

et al. 2021

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The interactive effectof silicon (Si) application on soil fertility is poorly understood when inoculation with Azospirillum brasilense is performed. This research determined if Si application and A. brasilense inoculation to corn (Zea mays L.) and wheat (Triticum aestivum L.) has agronomic benefits on soil nutrient concentration and grain yield. Treatments were tested under a no-till system in a Rhodic Haplustox in a full factorial design with four replicates and comprised (a) two soil amendment sources-calcium (Ca) and magnesium (Mg) silicate and dolomitic limestone; (b) with and without seed inoculation with A. brasilense; and (c) five sampling dates collected during two corn-wheat crop rotations (2015)(2016)(2017). Calcium and Mg silicate application was effective at decreasing soil hydrogen + aluminum (H+Al) and Al content and increasing soil pH, sum of bases, and base saturation. However, silicate changed soil nutrient availability, reduced cation exchange capacity, phosphorus (P) and Mg content and did not significantly affect (p > .05) corn and wheat grain yield. Inoculation reduced Al toxicity, with lower H+Al and Al contents, and increased K content, leading to a greater pH and base saturation after four cropping seasons. Inoculation increased corn and wheat grain yield by 8.2 and 8.3%, respectively. Application of Ca and Mg silicate was more effective than limestone as a liming agent but could result in decreased availability of certain nutrients in soil.

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“…Some studies have reported Si can be beneficial under biotic and abiotic conditions [71,72]. For example, Galindo et al [41] studying inoculation methods associated with Si application reported an average wheat grain yield increase of 6.7% when seed inoculation and Si application were performed. Guével et al [71] observed that foliar applications of three different Si products (Kasil 26.5% SiO 2 ; Silamol 2% SiO 2 and 46% K 2 O; and MRD-250 43.2% of SiO 2 ) did not promote wheat plant growth compared to the control treatment under greenhouse conditions, except when the plants were infected by powdery mildew.…”

Section: Plos Onementioning

confidence: 99%

“…Calcium and magnesium silicate also can increase base saturation and extractable levels of P, Ca, Mg, and Si, as well as decrease the phytotoxic effect of Fe, Mn, Zn, Al, and Cd [38,39] and correct soil acidity [40]. Galindo et al [41] studying inoculation methods associated with Si application reported an average wheat grain yield increase of 6.7% when seed inoculation and Si application were performed.…”

Section: Introductionmentioning

confidence: 99%

Can silicon applied to correct soil acidity in combination with Azospirillum brasilense inoculation improve nitrogen use efficiency in maize?

et al. 2020

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Alternative management practices are needed to minimize the need for chemical fertilizer use in non-leguminous cropping systems. The use of biological agents that can fix atmospheric N has shown potential to improve nutrient availability in grass crops. This research was developed to investigate if inoculation with Azospirillum brasilense in combination with silicon (Si) can enhance N use efficiency (NUE) in maize. The study was set up in a Rhodic Hapludox under a no-till system, in a completely randomized block design with four replicates. Treatments were tested in a full factorial design and included: i) five side dress N rates (0 to 200 kg ha-1); ii) two liming sources (Ca and Mg silicate and dolomitic limestone); and iii) with and without seed inoculation with A. brasilense. Inoculation with A. brasilense was found to increase grain yield by 15% when N was omitted and up to 10% when N was applied. Inoculation also increased N accumulation in plant tissue. Inoculation and limestone application were found to increase leaf chlorophyll index, number of grains per ear, harvest index, and NUE. Inoculation increased harvest index and NUE by 9.5 and 19.3%, respectively, compared with non-inoculated plots. Silicon application increased leaf chlorophyll index and N-leaf concentration. The combination of Si and inoculation provided greater Sishoot accumulation. This study showed positive improvements in maize growth production parameters as a result of inoculation, but the potential benefits of Si use were less evident. Further research should be conducted under growing conditions that provide some level of biotic or abiotic stress to study the true potential of Si application.

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Assessing Forms of Application of Azospirillum brasilense Associated with Silicon Use on Wheat

Cited by 19 publications

References 69 publications

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

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

Nutrient availability affected by silicate and Azospirillum brasilense application in corn–wheat rotation

Can silicon applied to correct soil acidity in combination with Azospirillum brasilense inoculation improve nitrogen use efficiency in maize?

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