Abstract

A field experiment was conducted during the summerseason of 2000-2001 at IARI, New Delhi using the onion cultivar Pusa Madhvi to identify a suitable Azotobacter strain and nitrogen level combination(s) for better yield and quality of onion. The treatments consisted of factorial combinations of four levels of nitrogen (0, 25, 50 and 75% recommended doses) and three Azotobacter strains (CBD-15, AS-4 and M-4) with two uninoculated controls, one with the full dose of N and the other without NPK. The results revealed that the application of 75% recommended N dose along with inoculation with CBD-15 or M-4 significantly increased the marketable yield and the nitrogen content in both leaves and bulbs, over the control with the full dose of nitrogen, whereas only 75% recommended N + CBD-15 led to a significantly increased total yield. Total soluble solids (TSS) and neck thickness were significantly reduced by the application of 50% recommended N dose along with inoculation with CBD-15 or M-4 compared with the uninoculated control with the full N dose. Inoculation with any of the Azotobacter strains along with 50 or 75% recommended N dose significantly reduced the sprouting loss during storage, while inoculation significantly reduced rotting and total losses when combined with 50 or 25% recommended N doses.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 13

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

CBD-15 with 75% recommended N increased marketable yield.

Taxon
onionAllium cepat0
Treatment
75% recommended N dose along with inoculation with CBD-15 or M-4e0
Interactor
AzotobacterAzotobactert0symbiont
Outcome
marketable yielde0
Direction
increasede0
Comparator
control with the full dose of nitrogene0

Not reportedMaterial

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The results revealed that the application of 75% recommended N dose along with inoculation with CBD-15 or M-4 significantly increased the marketable yield and the nitrogen content in both leaves and bulbs, over the control with the full dose of nitrogen, whereas only 75% recommended N + CBD-15 led to a significantly increased total yield.”

✓ located verbatim in the source · abstract, characters 497–837 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

CBD-15 with 75% recommended N increased nitrogen content in both leaves and bulbs.

Taxon
onionAllium cepat0
Treatment
75% recommended N dose along with inoculation with CBD-15 or M-4e0
Interactor
AzotobacterAzotobactert0symbiont
Outcome
nitrogen content in both leaves and bulbse0
Direction
increasede0
Comparator
control with the full dose of nitrogene0

Not reportedMaterial

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The results revealed that the application of 75% recommended N dose along with inoculation with CBD-15 or M-4 significantly increased the marketable yield and the nitrogen content in both leaves and bulbs, over the control with the full dose of nitrogen, whereas only 75% recommended N + CBD-15 led to a significantly increased total yield.”

✓ located verbatim in the source · abstract, characters 497–837 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

M-4 with 75% recommended N increased marketable yield.

Taxon
onionAllium cepat0
Treatment
75% recommended N dose along with inoculation with CBD-15 or M-4e0
Interactor
AzotobacterAzotobactert0symbiont
Outcome
marketable yielde0
Direction
increasede0
Comparator
control with the full dose of nitrogene0

Not reportedMaterial

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The results revealed that the application of 75% recommended N dose along with inoculation with CBD-15 or M-4 significantly increased the marketable yield and the nitrogen content in both leaves and bulbs, over the control with the full dose of nitrogen, whereas only 75% recommended N + CBD-15 led to a significantly increased total yield.”

✓ located verbatim in the source · abstract, characters 497–837 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

M-4 with 75% recommended N increased nitrogen content in both leaves and bulbs.

Taxon
onionAllium cepat0
Treatment
75% recommended N dose along with inoculation with CBD-15 or M-4e0
Interactor
AzotobacterAzotobactert0symbiont
Outcome
nitrogen content in both leaves and bulbse0
Direction
increasede0
Comparator
control with the full dose of nitrogene0

Not reportedMaterial

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The results revealed that the application of 75% recommended N dose along with inoculation with CBD-15 or M-4 significantly increased the marketable yield and the nitrogen content in both leaves and bulbs, over the control with the full dose of nitrogen, whereas only 75% recommended N + CBD-15 led to a significantly increased total yield.”

✓ located verbatim in the source · abstract, characters 497–837 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

75% recommended N with CBD-15 increased total yield.

Taxon
onionAllium cepat0
Treatment
75% recommended N + CBD-15e0
Interactor
AzotobacterAzotobactert0symbiont
Outcome
total yielde0
Direction
increasede0
Comparator
control with the full dose of nitrogene0

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The results revealed that the application of 75% recommended N dose along with inoculation with CBD-15 or M-4 significantly increased the marketable yield and the nitrogen content in both leaves and bulbs, over the control with the full dose of nitrogen, whereas only 75% recommended N + CBD-15 led to a significantly increased total yield.”

✓ located verbatim in the source · abstract, characters 497–837 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

CBD-15 with 50% N reduced Total soluble solids (TSS).

Taxon
onionAllium cepat0
Treatment
50% recommended N dose along with inoculation with CBD-15 or M-4e0
Interactor
AzotobacterAzotobactert0symbiont
Outcome
Total soluble solids (TSS)e0
Direction
reducede0
Comparator
uninoculated control with the full N dosee0

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Total soluble solids (TSS) and neck thickness were significantly reduced by the application of 50% recommended N dose along with inoculation with CBD-15 or M-4 compared with the uninoculated control with the full N dose.”

✓ located verbatim in the source · abstract, characters 838–1058 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

CBD-15 with 50% N reduced neck thickness.

Taxon
onionAllium cepat0
Treatment
50% recommended N dose along with inoculation with CBD-15 or M-4e0
Interactor
AzotobacterAzotobactert0symbiont
Outcome
neck thicknesse0
Direction
reducede0
Comparator
uninoculated control with the full N dosee0

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Total soluble solids (TSS) and neck thickness were significantly reduced by the application of 50% recommended N dose along with inoculation with CBD-15 or M-4 compared with the uninoculated control with the full N dose.”

✓ located verbatim in the source · abstract, characters 838–1058 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

M-4 with 50% N reduced Total soluble solids (TSS).

Taxon
onionAllium cepat0
Treatment
50% recommended N dose along with inoculation with CBD-15 or M-4e0
Interactor
AzotobacterAzotobactert0symbiont
Outcome
Total soluble solids (TSS)e0
Direction
reducede0
Comparator
uninoculated control with the full N dosee0

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Total soluble solids (TSS) and neck thickness were significantly reduced by the application of 50% recommended N dose along with inoculation with CBD-15 or M-4 compared with the uninoculated control with the full N dose.”

✓ located verbatim in the source · abstract, characters 838–1058 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

M-4 with 50% N reduced neck thickness.

Taxon
onionAllium cepat0
Treatment
50% recommended N dose along with inoculation with CBD-15 or M-4e0
Interactor
AzotobacterAzotobactert0symbiont
Outcome
neck thicknesse0
Direction
reducede0
Comparator
uninoculated control with the full N dosee0

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Total soluble solids (TSS) and neck thickness were significantly reduced by the application of 50% recommended N dose along with inoculation with CBD-15 or M-4 compared with the uninoculated control with the full N dose.”

✓ located verbatim in the source · abstract, characters 838–1058 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Azotobacter inoculation with 50% N reduced sprouting loss in storage.

Taxon
onionAllium cepat0
Treatment
Inoculation with any of the Azotobacter strains along with 50 or 75% recommended N dosee0
Interactor
AzotobacterAzotobactere0symbiont
Outcome
sprouting losse0
Direction
reducede0

Not reportedOrgan / stageComparator

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Inoculation with any of the Azotobacter strains along with 50 or 75% recommended N dose significantly reduced the sprouting loss during storage, while inoculation significantly reduced rotting and total losses when combined with 50 or 25% recommended N doses.”

✓ located verbatim in the source · abstract, characters 1059–1318 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Azotobacter inoculation with 75% N reduced sprouting loss in storage.

Taxon
onionAllium cepat0
Treatment
Inoculation with any of the Azotobacter strains along with 50 or 75% recommended N dosee0
Interactor
AzotobacterAzotobactere0symbiont
Outcome
sprouting losse0
Direction
reducede0

Not reportedOrgan / stageComparator

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Inoculation with any of the Azotobacter strains along with 50 or 75% recommended N dose significantly reduced the sprouting loss during storage, while inoculation significantly reduced rotting and total losses when combined with 50 or 25% recommended N doses.”

✓ located verbatim in the source · abstract, characters 1059–1318 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Azotobacter inoculation with 50% N reduced rotting and total losses.

Taxon
onionAllium cepat0
Treatment
inoculatione0
Interactor
AzotobacterAzotobactere0symbiont
Outcome
rotting and total lossese0
Direction
reducede0
Qualifier
50 or 25% recommended N dosese0

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Inoculation with any of the Azotobacter strains along with 50 or 75% recommended N dose significantly reduced the sprouting loss during storage, while inoculation significantly reduced rotting and total losses when combined with 50 or 25% recommended N doses.”

✓ located verbatim in the source · abstract, characters 1059–1318 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Azotobacter inoculation with 25% N reduced rotting and total losses.

Taxon
onionAllium cepat0
Treatment
inoculatione0
Interactor
AzotobacterAzotobactere0symbiont
Outcome
rotting and total lossese0
Direction
reducede0
Qualifier
50 or 25% recommended N dosese0

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 ↗
Azotobacter
Azotobacter · Interactor · picture of the genus (one of its species)DAN H. JONES · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Inoculation with any of the Azotobacter strains along with 50 or 75% recommended N dose significantly reduced the sprouting loss during storage, while inoculation significantly reduced rotting and total losses when combined with 50 or 25% recommended N doses.”

✓ located verbatim in the source · abstract, characters 1059–1318 · show in text ↑
t0

“Effect of integrated use of Azotobacter and nitrogen fertilizer on yield and quality of onion (Allium cepa L.)”

✓ located verbatim in the source · title, characters 0–110 · show in text ↑

Azotobacter · quality: postharvest · Allium cepa (onion)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

inoculation · quality: postharvest · Allium cepa (onion)Positive and negative results

12 papers: 7 positive, 5 negative or no effect

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

  1. negative
  2. no effect
  3. negative

8 papers more in this group

See all 12 papers →

nitrogen · quality: postharvest · Allium cepa (onion)Positive and negative results

41 papers: 36 positive, 5 negative or no effect

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

  1. negative
  2. negative
  3. negative

37 papers more in this group

See all 41 papers →

nitrogen · Azotobacter · 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 →

inoculation · Azotobacter · 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 →

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.