Maize Yield Response to Nitrogen Rates and Sources Associated with <i>Azospirillum brasilense</i>

Galindo, Fernando Shintate; Filho, Marcelo Carvalho Minhoto Teixeira; Buzetti, Salatiér; Pagliari, Paulo; Santini, José Mateus Kondo; Alves, Cleiton José; Megda, Márcio Mahmoud; Nogueira, Thiago Assis Rodrigues; Andreotti, Marcelo; Arf, Orivaldo

doi:10.2134/agronj2018.07.0481

Cited by 67 publications

(40 citation statements)

References 54 publications

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“…The increase on PUE and corn yield as a function B. subtilis and A. brasilense inoculation compared to control was, on average, equivalent to 100.5 and 54.6% for PUE and 17.4 and 12.8% for grain yield, respectively, regardless of P 2 O 5 application rates. Similar results with B. subtilis and A. brasilense inoculation were reported with greater corn yield between 3.8 to 34% in inoculated plants compared with non-inoculated plants (Kuan et al, 2016;Müller et al, 2016;Traoré et al, 2016;Ahmad et al, 2019;Galindo et al, 2019b).…”

Section: Discussionsupporting

confidence: 75%

“…under different weather and soil conditions, concluded that crop yield can increase up to 30% with inoculation (Fukami et al, 2016). Also, positive results in corn development and yield has been reported with Azospirillum brasilense inoculation (strains Ab-V5 and Ab-V6) under tropical conditions (Martins et al, 2018;Oliveira et al, 2018;Galindo et al, 2019b). However, greater responses with other PGPB can be achieved (Pankievicz et al, 2019).…”

Section: Introductionmentioning

confidence: 96%

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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: Discussionsupporting

confidence: 75%

Section: Introductionmentioning

confidence: 96%

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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“…viciae NGB-FR 12646.8–81.4Youseif et al (2017) R. leguminosarum sv . vicieae NSFBR-30 and HUFBR-155–75Argawa and Mnalku (2017)Maize Azospirillum brasilense Ab-V5 and Ab-V627Hungria et al (2010) A. brasilense Ab-V529Ferreira et al (2013) A. brasilense Ab-V5 and Ab-V614.3Galindo et al (2019) Pseudomonas fluorescens –29–31Sandini et al (2019)Wheat Bacillus polymyxa Bp 431713.6–19.5Rodriguez-Caceres et al (1996b) A. brasilense Sp24614.7Ozturk et al (2003) A. brasilense Ab-V5 and Ab-V631Hungria et al (2010) A. brasilense –18Karimi et al (2018)Rice Burkholderia vietnamiensis TVV7522Tran et al (2000) B. vietnamiensis MGK312.1Govindarajan et al (2007)Tomato A. brasilense Sp-711Alfonso et al (2005) P. fluorescens SS557Ahirwar et al (2015)Co-inoculation…”

Section: Inoculants Containing Mixes Of Bacteriamentioning

confidence: 99%

Microbial inoculants: reviewing the past, discussing the present and previewing an outstanding future for the use of beneficial bacteria in agriculture

2019

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More than one hundred years have passed since the development of the first microbial inoculant for plants. Nowadays, the use of microbial inoculants in agriculture is spread worldwide for different crops and carrying different microorganisms. In the last decades, impressive progress has been achieved in the production, commercialization and use of inoculants. Nowadays, farmers are more receptive to the use of inoculants mainly because high-quality products and multi-purpose elite strains are available at the market, improving yields at low cost in comparison to chemical fertilizers. In the context of a more sustainable agriculture, microbial inoculants also help to mitigate environmental impacts caused by agrochemicals. Challenges rely on the production of microbial inoculants for a broader range of crops, and the expansion of the inoculated area worldwide, in addition to the search for innovative microbial solutions in areas subjected to increasing episodes of environmental stresses. In this review, we explore the world market for inoculants, showing which bacteria are prominent as inoculants in different countries, and we discuss the main research strategies that might contribute to improve the use of microbial inoculants in agriculture.

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“…These are commercial strains used in Brazil with brand name AzoTotal 1 . These strains when used under similar conditions (Brazilian Savannah) have shown positive results in maize development [2,8,13,16]. Seeds were inoculated one hour before planting and after seed treatment with fungicide and insecticide when the seeds were completely dry.…”

Section: Plos Onementioning

confidence: 99%

“…Maize (Zea mays L.) is among of the most relevant and cultivated grain crop used for human and animal consumption [1]. In Brazil, the average yield (e.g., 5,476 kg ha -1 ) is still low compared with high yielding areas of the USA (USDA average 10,840 kg ha -1 ) and Europe (Eurostat average 8,399 kg ha -1 ) [2][3][4][5], despite technological improvements in plant nutrition, soil management and field equipment. This low maize yield observed in Brazil is usually attributed to low-fertility soils that require high fertilizer inputs for optimum productivity [6].…”

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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Maize Yield Response to Nitrogen Rates and Sources Associated with Azospirillum brasilense

Cited by 67 publications

References 54 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

Microbial inoculants: reviewing the past, discussing the present and previewing an outstanding future for the use of beneficial bacteria in agriculture

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

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