Paper · 2024 · Frontiers in Microbiology

Optimizing plant growth, nutrient uptake, and yield of onion through the application of phosphorus solubilizing bacteria and endophytic fungi

Thangasamy Arunachalam; Komal Gade; Payal Arun Mahadule; et al.

17
claims
32
verbatim quotes
13
citations
3
research areas
✓
Open access · cc-by

Abstract

Introduction The application of mineral fertilizers deteriorates soil properties and affects crop yield and nutritional properties. However, plant growth-promoting microorganisms (PGPM- Serendipita indica , phosphorus solubilizing bacteria (PSB), and vesicular arbuscular mycorrhizae (VAM)) have great potential to reduce fertilizers and improve soil fertility, crop yield, and nutrient uptake and mitigate the environmental effect of mineral fertilizers. Material and methods Hence, a field experiment was conducted involving nine treatments to evaluate the effects of PGPM along with 50% or 100% of the recommended dose of fertilizers on plant growth, soil fertility, nutrient uptake, and onion productivity. Results and discussion Results indicated that 100% RDF combined with S. indica or PSB led to improved plant growth, and higher nutrient concentrations in both leaves and bulbs of onions compared to RDF alone. Moreover, the application of 100% RDF with S. indica increased total dry matter yield by 11.5% and 7.6% in the 2018-2019 and 2019-2020 seasons, respectively, compared to 100% RDF alone. This treatment also resulted in the highest nutrient uptake, with N uptake increasing by 6.9%-29.9%, P by 13.7%-21.7%, K by 20.0%-23.7%, and S by 18.1%-23.4%. Additionally, the combination of 100% RDF with S. indica inoculation led to a notable increase in bulb yield, with increments of 16.2% and 13.9% observed in 2018-2019 and 2019-2020, respectively, compared to 100% RDF alone. Similarly, the application of 100% RDF along with PSB inoculation resulted in an increase in bulb yield by 7.2% and 9.4% in the respective years. However, VAM did not exhibit satisfactory performance or improvements in the onion crop. Conclusion Overall, the study suggests that combining 100% RDF with S. indica or PSB can enhance onion productivity and nutrient use efficiency. The present study may open a new avenue of PGPM application in enhancing onion yield and improving the bulb quality as well as soil health. However, field trials across different regions and soil types are necessary to validate these findings for practical adoption by farmers.

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Claims 17

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Adding S. indica to 100% RDF improved onion growth relative to RDF alone.

Taxon
onionsAllium cepae0
Treatment
100% RDF combined with S. indicae0
Interactor
S. indicaSerendipita indicae0symbiont
Outcome
plant growthe0
Direction
improvede0
Comparator
RDF alonee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100% RDF combined with S. indica or PSB led to improved plant growth, and higher nutrient concentrations in both leaves and bulbs of onions compared to RDF alone”

✓ located verbatim in the source · abstract, characters 757–918 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Adding PSB to 100% RDF improved onion growth relative to RDF alone.

Taxon
onionsAllium cepae0
Treatment
100% RDF combined with S. indica or PSBe0
Interactor
PSBe0symbiont
Outcome
plant growthe0
Direction
improvede0
Comparator
RDF alonee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100% RDF combined with S. indica or PSB led to improved plant growth, and higher nutrient concentrations in both leaves and bulbs of onions compared to RDF alone”

✓ located verbatim in the source · abstract, characters 757–918 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Adding S. indica to 100% RDF raised onion leaf and bulb nutrient concentrations relative to RDF alone.

Taxon
onionsAllium cepae0
Treatment
100% RDF combined with S. indica or PSBe0
Interactor
S. indicaSerendipita indicae0symbiont
Outcome
nutrient concentrations in both leaves and bulbse0
Direction
highere0
Comparator
RDF alonee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100% RDF combined with S. indica or PSB led to improved plant growth, and higher nutrient concentrations in both leaves and bulbs of onions compared to RDF alone”

✓ located verbatim in the source · abstract, characters 757–918 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Adding PSB to 100% RDF raised onion leaf and bulb nutrient concentrations relative to RDF alone.

Taxon
onionsAllium cepae0
Treatment
100% RDF combined with S. indica or PSBe0
Interactor
PSBe0symbiont
Outcome
nutrient concentrations in both leaves and bulbse0
Direction
highere0
Comparator
RDF alonee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100% RDF combined with S. indica or PSB led to improved plant growth, and higher nutrient concentrations in both leaves and bulbs of onions compared to RDF alone”

✓ located verbatim in the source · abstract, characters 757–918 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Onion dry matter yield increased 11.5% with 100% RDF and S. indica in 2018-2019.

Taxon
onionAllium cepat0
Treatment
100% RDF with S. indicae0
Interactor
S. indicaSerendipita indicae0symbiont
Outcome
total dry matter yielde0
Direction
increasede0
Value
11.5%e0
Qualifier
2018-2019e0
Comparator
100% RDF alonee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100% RDF with S. indica increased total dry matter yield by 11.5% and 7.6% in the 2018-2019 and 2019-2020 seasons, respectively, compared to 100% RDF alone”

✓ located verbatim in the source · abstract, characters 949–1104 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Onion dry matter yield increased 7.6% with 100% RDF and S. indica in 2019-2020.

Taxon
onionAllium cepat0
Treatment
100% RDF with S. indicae0
Interactor
S. indicaSerendipita indicae0symbiont
Outcome
total dry matter yielde0
Direction
increasede0
Value
7.6%e0
Qualifier
2019-2020e0
Comparator
100% RDF alonee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100% RDF with S. indica increased total dry matter yield by 11.5% and 7.6% in the 2018-2019 and 2019-2020 seasons, respectively, compared to 100% RDF alone”

✓ located verbatim in the source · abstract, characters 949–1104 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Onion N uptake increased by 6.9%-29.9% under 100% RDF with S. indica.

Taxon
onionAllium cepat0
Interactor
S. indicaSerendipita indicae1symbiontt0
Outcome
N uptakee0
Direction
increasinge0
Value
6.9%-29.9%e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“This treatment also resulted in the highest nutrient uptake, with N uptake increasing by 6.9%-29.9%, P by 13.7%-21.7%, K by 20.0%-23.7%, and S by 18.1%-23.4%”

✓ located verbatim in the source · abstract, characters 1106–1263 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
e1

“100% RDF combined with S. indica or PSB led to improved plant growth”

✓ located verbatim in the source · abstract, characters 757–825 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Onion P increased by 13.7%-21.7% under 100% RDF with S. indica.

Taxon
onionAllium cepat0
Interactor
S. indicaSerendipita indicae1symbiontt0
Outcome
Pe0
Direction
increasinge0
Value
13.7%-21.7%e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“This treatment also resulted in the highest nutrient uptake, with N uptake increasing by 6.9%-29.9%, P by 13.7%-21.7%, K by 20.0%-23.7%, and S by 18.1%-23.4%”

✓ located verbatim in the source · abstract, characters 1106–1263 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
e1

“100% RDF combined with S. indica or PSB led to improved plant growth”

✓ located verbatim in the source · abstract, characters 757–825 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Onion K increased by 20.0%-23.7% under 100% RDF with S. indica.

Taxon
onionAllium cepat0
Interactor
S. indicaSerendipita indicae1symbiontt0
Outcome
Ke0
Direction
increasinge0
Value
20.0%-23.7%e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“This treatment also resulted in the highest nutrient uptake, with N uptake increasing by 6.9%-29.9%, P by 13.7%-21.7%, K by 20.0%-23.7%, and S by 18.1%-23.4%”

✓ located verbatim in the source · abstract, characters 1106–1263 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
e1

“100% RDF combined with S. indica or PSB led to improved plant growth”

✓ located verbatim in the source · abstract, characters 757–825 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Onion S increased by 18.1%-23.4% under 100% RDF with S. indica.

Taxon
onionAllium cepat0
Interactor
S. indicaSerendipita indicae1symbiontt0
Outcome
Se0
Direction
increasinge0
Value
18.1%-23.4%e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“This treatment also resulted in the highest nutrient uptake, with N uptake increasing by 6.9%-29.9%, P by 13.7%-21.7%, K by 20.0%-23.7%, and S by 18.1%-23.4%”

✓ located verbatim in the source · abstract, characters 1106–1263 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
e1

“100% RDF combined with S. indica or PSB led to improved plant growth”

✓ located verbatim in the source · abstract, characters 757–825 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

S. indica inoculation with 100% RDF increased onion bulb yield 16.2% in 2018-2019.

Taxon
onionAllium cepat0
Treatment
100% RDF with S. indica inoculatione0
Interactor
S. indicaSerendipita indicae0symbiont
Outcome
bulb yielde0
Direction
increasee0
Value
16.2%e0
Qualifier
2018-2019e0
Comparator
100% RDF alonee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100% RDF with S. indica inoculation led to a notable increase in bulb yield, with increments of 16.2% and 13.9% observed in 2018-2019 and 2019-2020, respectively, compared to 100% RDF alone”

✓ located verbatim in the source · abstract, characters 1298–1487 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

S. indica inoculation with 100% RDF increased onion bulb yield 13.9% in 2019-2020.

Taxon
onionAllium cepat0
Treatment
100% RDF with S. indica inoculatione0
Interactor
S. indicaSerendipita indicae0symbiont
Outcome
bulb yielde0
Direction
increasee0
Value
13.9%e0
Qualifier
2019-2020e0
Comparator
100% RDF alonee0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100% RDF with S. indica inoculation led to a notable increase in bulb yield, with increments of 16.2% and 13.9% observed in 2018-2019 and 2019-2020, respectively, compared to 100% RDF alone”

✓ located verbatim in the source · abstract, characters 1298–1487 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PSB inoculation with 100% RDF increased onion bulb yield 7.2%.

Taxon
onionAllium cepat0
Treatment
100% RDF along with PSB inoculatione0
Interactor
PSBe0symbiont
Outcome
bulb yielde0
Direction
increasee0
Value
7.2%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100% RDF along with PSB inoculation resulted in an increase in bulb yield by 7.2% and 9.4% in the respective years”

✓ located verbatim in the source · abstract, characters 1519–1633 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PSB inoculation with 100% RDF increased onion bulb yield 9.4%.

Taxon
onionAllium cepat0
Treatment
100% RDF along with PSB inoculatione0
Interactor
PSBe0symbiont
Outcome
bulb yielde0
Direction
increasee0
Value
9.4%e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“100% RDF along with PSB inoculation resulted in an increase in bulb yield by 7.2% and 9.4% in the respective years”

✓ located verbatim in the source · abstract, characters 1519–1633 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

VAM gave no satisfactory improvement in the onion crop.

Taxon
onionAllium cepat0
Interactor
VAMe0symbiont
Outcome
improvements in the onion crope0
Direction
did not exhibite0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“VAM did not exhibit satisfactory performance or improvements in the onion crop”

✓ located verbatim in the source · abstract, characters 1644–1722 · show in text ↑
t0

“Optimizing plant growth, nutrient uptake, and yield of onion”

✓ located verbatim in the source · title, characters 0–60 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors suggest 100% RDF with S. indica can enhance onion productivity and nutrient use efficiency.

Taxon
onionAllium cepae0
Treatment
100% RDF with S. indicae0
Interactor
S. indicaSerendipita indicae0symbiont
Outcome
onion productivity and nutrient use efficiencye0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“combining 100% RDF with S. indica or PSB can enhance onion productivity and nutrient use efficiency”

✓ located verbatim in the source · abstract, characters 1768–1867 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors suggest 100% RDF with PSB can enhance onion productivity and nutrient use efficiency.

Taxon
onionAllium cepae0
Treatment
100% RDF with S. indica or PSBe0
Interactor
PSBe0symbiont
Outcome
onion productivity and nutrient use efficiencye0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“combining 100% RDF with S. indica or PSB can enhance onion productivity and nutrient use efficiency”

✓ located verbatim in the source · abstract, characters 1768–1867 · show in text ↑

Serendipita indica · yield · Allium cepa (onion)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

Serendipita indica · growth · Allium cepa (onion)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

phosphorus · yield · Allium cepa (onion)Results differ

60 papers: 55 positive, 5 negative or no effect

54 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. no effect
  3. no effect

56 papers more in this group

See all 60 papers →

inoculation · growth · Allium cepa (onion)Results differ

99 papers: 89 positive, 10 negative or no effect

88 papers in the same direction as this paper · 10 in the opposite direction

  1. positive
  2. positive
  3. positive

95 papers more in this group

See all 99 papers →

phosphorus · nutrient: content · Allium cepa (onion)Positive and negative results

13 papers: 10 positive, 3 negative or no effect

9 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
  2. negative
  3. negative

9 papers more in this group

See all 13 papers →

fertilization · nutrient: content · Allium cepa (onion)Positive and negative results

90 papers: 81 positive, 9 negative or no effect

80 papers in the same direction as this paper · 9 in the opposite direction

  1. no effect
  2. no effect
  3. negative

86 papers more in this group

See all 90 papers →

inoculation · yield · Allium cepa (onion)Positive and negative results

93 papers: 82 positive, 11 negative or no effect

81 papers in the same direction as this paper · 10 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Integrated fertilization produced onion bulb yield at par with the previous recommendation.

    Integrated nutrient management for sustainable onion production · 2015 · compared with previous recommendation (150: 50: 80: 50 kg NPKS + 20 t FYM/ha)

    No difference from an alternativeCited by this paper

  2. negative
  3. no effect

89 papers more in this group

See all 93 papers →

fertilization · growth · Allium cepa (onion)Positive and negative results

294 papers: 251 positive, 43 negative or no effect

250 papers in the same direction as this paper · 40 in the opposite direction · 3 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

290 papers more in this group

See all 294 papers →

8 of 11 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.