Paper · 2020 · IOP Conference Series Earth and Environmental Science

The effect of nitrogen-fixing bacteria towards upland rice plant growth and nitrogen content

Yusminah Hala

9
claims
15
verbatim quotes
11
citations
3
research areas
✓
Open access · cc-by

Abstract

Abstract This study was performed to observe the associative effect of Nitrogen-fixing bacteria and combination of each with nitrogen dosage on Nitrogen content and upland rice plant growth. Klebsiella pneumonia and Azospirillum brasilense were applied, while urea used as fertilizer on 0, 25, 50, and 75 kg N/Ha. The result revealed that inoculation of nitrogen-fixing bacteria to upland rice can increase tiller formation, shoot and root dry weight and plant N Total production. The effect of A. brasilense on increase tiller formation, biomass dry weight (shoot and root) and N total production revealed to tendency to increase compare to K. pneumonia . Differences in nitrogen fertilizer did not cause a significant effect on all parametric measured, except plant N content. Bacteria and nitrogen fertilizer interaction did not cause a significant effect on all parametric measured. From the regression analysis, there was a correlation between root dry weight with shoot dry weight; and the correlation between root dry weight with plant N total production.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacterial inoculation increased rice tiller formation.

Taxon
upland riceOryza sativae0
Treatment
inoculation of nitrogen-fixing bacteriae0
Interactor
nitrogen-fixing bacteriae0symbiont
Outcome
tiller formatione0
Direction
increasee0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“inoculation of nitrogen-fixing bacteria to upland rice can increase tiller formation, shoot and root dry weight and plant N Total production”

✓ located verbatim in the source · abstract, characters 339–479 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacterial inoculation increased rice shoot and root dry weight.

Taxon
upland riceOryza sativae0
Treatment
inoculation of nitrogen-fixing bacteriae0
Interactor
nitrogen-fixing bacteriae0symbiont
Outcome
shoot and root dry weighte0
Direction
increasee0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“inoculation of nitrogen-fixing bacteria to upland rice can increase tiller formation, shoot and root dry weight and plant N Total production”

✓ located verbatim in the source · abstract, characters 339–479 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bacterial inoculation increased plant total nitrogen production.

Taxon
upland riceOryza sativae0
Treatment
inoculation of nitrogen-fixing bacteriae0
Interactor
nitrogen-fixing bacteriae0symbiont
Outcome
plant N Total productione0
Direction
increasee0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“inoculation of nitrogen-fixing bacteria to upland rice can increase tiller formation, shoot and root dry weight and plant N Total production”

✓ located verbatim in the source · abstract, characters 339–479 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Azospirillum tended to increase tillers, biomass and total nitrogen more than Klebsiella.

Taxon
upland riceOryza sativat0
Treatment
A. brasilensee0
Interactor
A. brasilenseAzospirillum brasilensee0symbiont
Second interactor
K. pneumoniae0symbiont
Outcome
tiller formation, biomass dry weight (shoot and root) and N total productione0
Direction
increasee0
Comparator
K. pneumoniae0

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Azospirillum brasilense
Azospirillum brasilense · InteractorCristiane Colodel · CC BY 4.0 · iNaturalist ↗

Verbatim

e0

“The effect of A. brasilense on increase tiller formation, biomass dry weight (shoot and root) and N total production revealed to tendency to increase compare to K. pneumonia”

✓ located verbatim in the source · abstract, characters 481–654 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 47–58 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Fertilizer dose affected plant nitrogen content significantly.

Taxon
upland riceOryza sativat0
Treatment
nitrogen fertilizere0
Outcome
plant N contente0

Not reportedComparatorDirection

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Differences in nitrogen fertilizer did not cause a significant effect on all parametric measured, except plant N content”

✓ located verbatim in the source · abstract, characters 657–777 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 47–58 · show in text ↑
Intervention effectobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

Fertilizer dose had no significant effect on other measured parameters.

Taxon
upland riceOryza sativat0
Treatment
nitrogen fertilizere0
Outcome
all parametric measurede0
Qualifier
except plant N contente0

Not reportedComparatorDirection

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Differences in nitrogen fertilizer did not cause a significant effect on all parametric measured, except plant N content”

✓ located verbatim in the source · abstract, characters 657–777 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 47–58 · show in text ↑
Associationobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

The bacteria by fertilizer interaction was not significant for measured parameters.

Taxon
upland riceOryza sativat0
Treatment
Bacteria and nitrogen fertilizer interactione0
Outcome
all parametric measurede0

Not reportedDirection

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Bacteria and nitrogen fertilizer interaction did not cause a significant effect on all parametric measured”

✓ located verbatim in the source · abstract, characters 779–885 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 47–58 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Root and shoot dry weights were correlated.

Taxon
upland riceOryza sativat0
Organ / stage
roote0
Outcome
shoot dry weighte0

Not reportedDirection

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“there was a correlation between root dry weight with shoot dry weight”

✓ located verbatim in the source · abstract, characters 917–986 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 47–58 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Root dry weight and total plant nitrogen production were correlated.

Taxon
upland riceOryza sativat0
Organ / stage
roote0
Outcome
plant N total productione0

Not reportedDirection

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“the correlation between root dry weight with plant N total production”

✓ located verbatim in the source · abstract, characters 992–1061 · show in text ↑
t0

“upland rice”

✓ located verbatim in the source · title, characters 47–58 · show in text ↑

Azospirillum brasilense · yield · Oryza sativa (rice)Results differ

19 papers: 16 positive, 3 negative or no effect

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

  1. negative
  2. no effect
  3. no effect

15 papers more in this group

See all 19 papers →

inoculation · growth · Oryza sativa (rice)Positive and negative results

399 papers: 362 positive, 37 negative or no effect

361 papers in the same direction as this paper · 34 in the opposite direction · 3 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

395 papers more in this group

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inoculation · yield · Oryza sativa (rice)Positive and negative results

418 papers: 382 positive, 36 negative or no effect

381 papers in the same direction as this paper · 31 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

414 papers more in this group

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nitrogen · growth · Oryza sativa (rice)Positive and negative results

511 papers: 402 positive, 109 negative or no effect

401 papers in the same direction as this paper · 101 in the opposite direction · 8 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

507 papers more in this group

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nitrogen · yield · Oryza sativa (rice)Positive and negative results

2,045 papers: 1,803 positive, 242 negative or no effect

1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative

  1. positive
  2. negative
  3. negative

2,041 papers more in this group

See all 2,045 papers →

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.