Paper · 2015 · ASIAN JOURNAL OF BIO SCIENCE

Effect of vermicompost and biofertilizer on symbiotic efficiency and yield of cowpea in arid zone of Rajasthan

V.M. KHAN; R.S. MANOHAR; H.P. VERMA

11
claims
33
verbatim quotes
9
citations
3
research areas
✓
Open access

Abstract

A field experiment was conducted during Kharif season of 2012 on loamy sand soil to study the effect of vermicompost and biofertilizers on growth, yield and quality of cowpea. The experiment consisted of four treatments of vermicompost (control, 2.0, 4.0 and 6.0 t/ha) and four treatments of biofertilizer (control, Rhizobium, PSB and Rhizobium+PSB) thereby making sixteen treatment combinations tested in Randomized Block Design with four replications. The results indicated the application of vermicompost 4.0 t/ha gave maximum and significantly higher the net returns over other treatments and remained at par with 6.0 t/ha of vermicompost. Whereas, seed yield, straw yield, biological yield, total root nodules and leghaemoglobin content significantly increased upto 6.0 t/ha and remained at par with 4.0 t/ha of vermicompost over other treatments. But, protein content in seed and effective root nodules significantly higher upto 6.0 t/ha of vermicompost over other treatments. The nitrogen fixation capacity unchanged under different levels of vermicompost. Results further indicated that combined seed inoculation with the Rhizobium + PSB significantly increased the seed yield, straw yield, biological yield, protein content in seed, total root nodules, effective root nodule, leghaemoglobin content, nitrogen capacity and net returns over control and other treatments.

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 11

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Vermicompost at 4.0 t/ha maximized net returns, exceeded other treatments significantly, and was at par with 6.0 t/ha.

Treatment
vermicompost 4.0 t/hae0
Outcome
net returnse0
Direction
maximume0
Qualifier
at par with 6.0 t/ha of vermicomposte0
Comparator
other treatmentse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“application of vermicompost 4.0 t/ha gave maximum and significantly higher the net returns over other treatments and remained at par with 6.0 t/ha of vermicompost”

✓ located verbatim in the source · abstract, characters 480–642 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Vermicompost increased seed, straw and biological yield up to 6.0 t/ha, with results at par with 4.0 t/ha.

Treatment
6.0 t/hae0
Outcome
seed yield, straw yield, biological yielde0
Direction
increasede0
Comparator
other treatmentse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“seed yield, straw yield, biological yield, total root nodules and leghaemoglobin content significantly increased upto 6.0 t/ha and remained at par with 4.0 t/ha of vermicompost over other treatments”

✓ located verbatim in the source · abstract, characters 653–851 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Vermicompost increased total root nodules and leghaemoglobin content up to 6.0 t/ha.

Treatment
6.0 t/hae0
Outcome
total root nodules and leghaemoglobin contente0
Direction
increasede0
Comparator
other treatmentse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“total root nodules and leghaemoglobin content significantly increased upto 6.0 t/ha and remained at par with 4.0 t/ha of vermicompost over other treatments”

✓ located verbatim in the source · abstract, characters 696–851 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Vermicompost at 6.0 t/ha significantly raised seed protein content.

Treatment
6.0 t/ha of vermicomposte0
Outcome
protein content in seede0
Direction
highere0
Comparator
other treatmentse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“protein content in seed and effective root nodules significantly higher upto 6.0 t/ha of vermicompost over other treatments”

✓ located verbatim in the source · abstract, characters 858–981 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Vermicompost at 6.0 t/ha significantly raised effective root nodule number.

Treatment
6.0 t/ha of vermicomposte0
Outcome
effective root nodulese0
Direction
highere0
Comparator
other treatmentse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“protein content in seed and effective root nodules significantly higher upto 6.0 t/ha of vermicompost over other treatments”

✓ located verbatim in the source · abstract, characters 858–981 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen fixation capacity was unchanged across vermicompost levels.

Treatment
different levels of vermicomposte0
Outcome
nitrogen fixation capacitye0
Direction
unchangede0

Not reportedComparator

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The nitrogen fixation capacity unchanged under different levels of vermicompost.”

✓ located verbatim in the source · abstract, characters 983–1063 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium plus PSB inoculation increased seed, straw and biological yield relative to control and other treatments.

Treatment
combined seed inoculation with the Rhizobium + PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
seed yield, straw yield, biological yielde0
Direction
increasede0
Comparator
control and other treatmentse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“combined seed inoculation with the Rhizobium + PSB significantly increased the seed yield, straw yield, biological yield, protein content in seed, total root nodules, effective root nodule, leghaemoglobin content, nitrogen capacity and net returns over control and other treatments”

✓ located verbatim in the source · abstract, characters 1095–1376 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium plus PSB inoculation increased seed protein content.

Treatment
combined seed inoculation with the Rhizobium + PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
protein content in seede0
Direction
increasede0
Comparator
control and other treatmentse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“combined seed inoculation with the Rhizobium + PSB significantly increased the seed yield, straw yield, biological yield, protein content in seed, total root nodules, effective root nodule, leghaemoglobin content, nitrogen capacity and net returns over control and other treatments”

✓ located verbatim in the source · abstract, characters 1095–1376 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium plus PSB inoculation increased total and effective root nodules and leghaemoglobin.

Treatment
combined seed inoculation with the Rhizobium + PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
total root nodules, effective root nodule, leghaemoglobin contente0
Direction
increasede0
Comparator
control and other treatmentse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“combined seed inoculation with the Rhizobium + PSB significantly increased the seed yield, straw yield, biological yield, protein content in seed, total root nodules, effective root nodule, leghaemoglobin content, nitrogen capacity and net returns over control and other treatments”

✓ located verbatim in the source · abstract, characters 1095–1376 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium plus PSB inoculation increased nitrogen capacity.

Treatment
combined seed inoculation with the Rhizobium + PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
nitrogen capacitye0
Direction
increasede0
Comparator
control and other treatmentse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“combined seed inoculation with the Rhizobium + PSB significantly increased the seed yield, straw yield, biological yield, protein content in seed, total root nodules, effective root nodule, leghaemoglobin content, nitrogen capacity and net returns over control and other treatments”

✓ located verbatim in the source · abstract, characters 1095–1376 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium plus PSB inoculation increased net returns.

Treatment
combined seed inoculation with the Rhizobium + PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
net returnse0
Direction
increasede0
Comparator
control and other treatmentse0

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

Vigna unguiculata
Vigna unguiculata · TaxonHeraldDesa at English Wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“combined seed inoculation with the Rhizobium + PSB significantly increased the seed yield, straw yield, biological yield, protein content in seed, total root nodules, effective root nodule, leghaemoglobin content, nitrogen capacity and net returns over control and other treatments”

✓ located verbatim in the source · abstract, characters 1095–1376 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · show in text ↑
t1

“cowpea”

✓ located verbatim in the source · title, characters 78–84 · 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 · quality: protein · Vigna unguiculata (cowpea)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 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 →

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. positive
  2. negative
  3. negative

112 papers more in this group

See all 116 papers →

inoculation · quality: protein · Vigna unguiculata (cowpea)Positive and negative results

16 papers: 15 positive, 1 negative or no effect

14 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

fertilization · quality: protein · Vigna unguiculata (cowpea)Positive and negative results

35 papers: 33 positive, 2 negative or no effect

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

  1. no effect
  2. no effect
  3. positive

31 papers more in this group

See all 35 papers →

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

51 papers: 44 positive, 7 negative or no effect

43 papers in the same direction as this paper · 7 in the opposite direction

  1. no effect
  2. negative
  3. negative

47 papers more in this group

See all 51 papers →

8 of 9 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.