Paper · 2012 · Crop Research

Effect of different nitrogen sources and phosphate solubilizing bacteria on growth and yield of grain cowpea (Vigna unguiculata (L.) Walp.)

Mahaveer Prasad; Joy Dawson; R. S. Yadav

6
claims
12
verbatim quotes
1
citations
2
research areas
—
Not open access

Abstract

A field experiment was conducted at the Crop Research Farm, Department of Agronomy, Allahabad Agricultural Institute, Allahabad, Uttar Pradesh during rainy (kharif) season of 2008 to study the effect of different nitrogen sources and PSB on growth and yield of grain cowpea [Vigna ungiculata (L.) Walp.] Inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicompost significantly increased the growth i. e. plant height, number of root nodules/plant, plant dry weight, crop growth rate and yield attributing characters i. e. pods/plant, grains/pod, seed index and consequently grain and haulm yield. Dual inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicompost significantly increased the harvest index, net returns and had higher B : C ratio also.

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 6

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium plus PSB with 20 kg N/ha through vermicompost increased plant height, number of root nodules per plant and plant dry weight of grain cowpea.

Taxon
grain cowpeat0
Treatment
Inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicomposte0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
plant height, number of root nodules/plant, plant dry weighte0
Direction
increasede0

Not reportedComparator

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

Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“grain cowpea”

✓ located verbatim in the source · title, characters 96–108 · show in text ↑
e0

“Inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicompost significantly increased the growth i. e. plant height, number of root nodules/plant, plant dry weight, crop growth rate and yield attributing characters i. e. pods/plant, grains/pod, seed index and consequently grain and haulm yield”

✓ located verbatim in the source · abstract, characters 304–608 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium plus PSB with 20 kg N/ha through vermicompost increased crop growth rate of grain cowpea.

Taxon
grain cowpeat0
Treatment
Inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicomposte0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
crop growth ratee0
Direction
increasede0

Not reportedComparator

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

Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“grain cowpea”

✓ located verbatim in the source · title, characters 96–108 · show in text ↑
e0

“Inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicompost significantly increased the growth i. e. plant height, number of root nodules/plant, plant dry weight, crop growth rate and yield attributing characters i. e. pods/plant, grains/pod, seed index and consequently grain and haulm yield”

✓ located verbatim in the source · abstract, characters 304–608 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium plus PSB with 20 kg N/ha through vermicompost increased pods per plant, grains per pod and seed index of grain cowpea.

Taxon
grain cowpeat0
Treatment
Inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicomposte0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
pods/plant, grains/pod, seed indexe0
Direction
increasede0

Not reportedComparator

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

Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“grain cowpea”

✓ located verbatim in the source · title, characters 96–108 · show in text ↑
e0

“Inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicompost significantly increased the growth i. e. plant height, number of root nodules/plant, plant dry weight, crop growth rate and yield attributing characters i. e. pods/plant, grains/pod, seed index and consequently grain and haulm yield”

✓ located verbatim in the source · abstract, characters 304–608 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Rhizobium plus PSB with 20 kg N/ha through vermicompost consequently increased grain and haulm yield of grain cowpea.

Taxon
grain cowpeat0
Treatment
Inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicomposte0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
grain and haulm yielde0
Direction
increaseinferrede0

Not reportedComparator

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

Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“grain cowpea”

✓ located verbatim in the source · title, characters 96–108 · show in text ↑
e0

“Inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicompost significantly increased the growth i. e. plant height, number of root nodules/plant, plant dry weight, crop growth rate and yield attributing characters i. e. pods/plant, grains/pod, seed index and consequently grain and haulm yield”

✓ located verbatim in the source · abstract, characters 304–608 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Dual inoculation of Rhizobium plus PSB with 20 kg N/ha through vermicompost increased harvest index and net returns of grain cowpea.

Taxon
grain cowpeat0
Treatment
Dual inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicomposte1
Interactor
RhizobiumRhizobiume1symbiont
Second interactor
PSBe1other
Outcome
harvest index, net returnse1
Direction
increasede1

Not reportedComparator

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

Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“grain cowpea”

✓ located verbatim in the source · title, characters 96–108 · show in text ↑
e1

“Dual inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicompost significantly increased the harvest index, net returns and had higher B : C ratio also”

✓ located verbatim in the source · abstract, characters 610–773 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Dual inoculation of Rhizobium plus PSB with 20 kg N/ha through vermicompost gave a higher B:C ratio for grain cowpea.

Taxon
grain cowpeat0
Treatment
Dual inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicomposte1
Interactor
RhizobiumRhizobiume1symbiont
Second interactor
PSBe1other
Outcome
B : C ratioe1
Direction
highere1

Not reportedComparator

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

Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“grain cowpea”

✓ located verbatim in the source · title, characters 96–108 · show in text ↑
e1

“Dual inoculation of Rhizobium+PSB along with 20 kg N/ha through vermicompost significantly increased the harvest index, net returns and had higher B : C ratio also”

✓ located verbatim in the source · abstract, characters 610–773 · show in text ↑

Rhizobium · symbiosis · Vigna unguiculata (cowpea)Results differ

21 papers: 18 positive, 3 negative or no effect

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

  1. negative
  2. no effect
  3. negative

17 papers more in this group

See all 21 papers →

Rhizobium · growth · Vigna unguiculata (cowpea)Positive and negative results

29 papers: 26 positive, 3 negative or no effect

25 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

25 papers more in this group

See all 29 papers →

Rhizobium · yield · Vigna unguiculata (cowpea)Results agree

47 papers: 47 positive, 0 negative or no effect

46 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

43 papers more in this group

See all 47 papers →

nitrogen · yield · Vigna unguiculata (cowpea)Results differ

68 papers: 62 positive, 6 negative or no effect

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

  1. no effect
  2. negative
  3. no effect

64 papers more in this group

See all 68 papers →

inoculation · symbiosis · Vigna unguiculata (cowpea)Results differ

69 papers: 57 positive, 12 negative or no effect

56 papers in the same direction as this paper · 11 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

65 papers more in this group

See all 69 papers →

inoculation · yield · Vigna unguiculata (cowpea)Results differ

116 papers: 99 positive, 17 negative or no effect

98 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. no effect

112 papers more in this group

See all 116 papers →

nitrogen · symbiosis · Vigna unguiculata (cowpea)Positive and negative results

17 papers: 13 positive, 4 negative or no effect

12 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. negative
  3. negative

13 papers more in this group

See all 17 papers →

nitrogen · growth · Vigna unguiculata (cowpea)Positive and negative results

45 papers: 39 positive, 6 negative or no effect

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

  1. negative
  2. no effect
  3. no effect

41 papers more in this group

See all 45 papers →

8 of 12 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.