Paper · 2015 · AN ASIAN JOURNAL OF SOIL SCIENCE

Effect of fertility levels and biofertilizers on growth and yield of cowpea on sandy loam soil of Rajasthan

J.S. MEENA; H.P VERMA; PINKI PANCHOLI

16
claims
32
verbatim quotes
5
citations
3
research areas
✓
Open access

Abstract

A field experiment was conducted during Kharif season of 2013 to know the effect of fertility levels and biofertilizers on growth and yield of cowpea on sandy loam soil of Rajasthan. The experiment consisted of four treatments of fertility levels (control, 100 % RDF, 75 % RDF+VC @ 2 t/ha and 100 % RDF+VC @ 2 t/ha) and four levels of biofertilizers (control, Rhizobium, PSB and Rhizobium + PSB) thereby making sixteen treatment combinations tested in factorial Randomized Block Design with three replications. Results indicated that application of 100 per cent RDF+VC @ 2 t/ha significantly increased the plant height, number of branches per plant, chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed, straw and biological yield and remained at par with the application of 75 per cent RDF+VC @ 2 t/ha over control. However, application the test weight and harvest index unchanged under different fertility levels. Results further indicated that inoculation of Rhizobium and PSB significantly increased the chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed and biological yield. However, inoculation of Rhizobium and PSB significantly increased the plant height, number of branches per plant and straw yield over the rest of treatments. However, the test weight and harvest index remained unchanged under different levels of biofertilizers.

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Claims 16

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

100 per cent RDF+VC @ 2 t/ha significantly increased plant height, number of branches per plant over control and was at par with 75 per cent RDF+VC @ 2 t/ha.

Treatment
100 per cent RDF+VC @ 2 t/hae0
Outcome
plant height, number of branches per plante0
Direction
increasede0
Qualifier
remained at par with the application of 75 per cent RDF+VC @ 2 t/hae0
Comparator
controle0

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

“Results indicated that application of 100 per cent RDF+VC @ 2 t/ha significantly increased the plant height, number of branches per plant, chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed, straw and biological yield and remained at par with the application of 75 per cent RDF+VC @ 2 t/ha over control.”

✓ located verbatim in the source · abstract, characters 511–943 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

100 per cent RDF+VC @ 2 t/ha significantly increased chlorophyll content over control and was at par with 75 per cent RDF+VC @ 2 t/ha.

Treatment
100 per cent RDF+VC @ 2 t/hae0
Outcome
chlorophyll contente0
Direction
increasede0
Qualifier
remained at par with the application of 75 per cent RDF+VC @ 2 t/hae0
Comparator
controle0

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

“Results indicated that application of 100 per cent RDF+VC @ 2 t/ha significantly increased the plant height, number of branches per plant, chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed, straw and biological yield and remained at par with the application of 75 per cent RDF+VC @ 2 t/ha over control.”

✓ located verbatim in the source · abstract, characters 511–943 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

100 per cent RDF+VC @ 2 t/ha significantly increased total root and effective root nodules over control and was at par with 75 per cent RDF+VC @ 2 t/ha.

Treatment
100 per cent RDF+VC @ 2 t/hae0
Outcome
total root and effective root nodulese0
Direction
increasede0
Qualifier
remained at par with the application of 75 per cent RDF+VC @ 2 t/hae0
Comparator
controle0

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

“Results indicated that application of 100 per cent RDF+VC @ 2 t/ha significantly increased the plant height, number of branches per plant, chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed, straw and biological yield and remained at par with the application of 75 per cent RDF+VC @ 2 t/ha over control.”

✓ located verbatim in the source · abstract, characters 511–943 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

100 per cent RDF+VC @ 2 t/ha significantly increased fresh weight and dry weight of nodules over control and was at par with 75 per cent RDF+VC @ 2 t/ha.

Treatment
100 per cent RDF+VC @ 2 t/hae0
Outcome
fresh weight and dry weight of nodulese0
Direction
increasede0
Qualifier
remained at par with the application of 75 per cent RDF+VC @ 2 t/hae0
Comparator
controle0

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

“Results indicated that application of 100 per cent RDF+VC @ 2 t/ha significantly increased the plant height, number of branches per plant, chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed, straw and biological yield and remained at par with the application of 75 per cent RDF+VC @ 2 t/ha over control.”

✓ located verbatim in the source · abstract, characters 511–943 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

100 per cent RDF+VC @ 2 t/ha significantly increased leghaemoglobin content over control and was at par with 75 per cent RDF+VC @ 2 t/ha.

Treatment
100 per cent RDF+VC @ 2 t/hae0
Outcome
leghaemoglobin contente0
Direction
increasede0
Qualifier
remained at par with the application of 75 per cent RDF+VC @ 2 t/hae0
Comparator
controle0

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

“Results indicated that application of 100 per cent RDF+VC @ 2 t/ha significantly increased the plant height, number of branches per plant, chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed, straw and biological yield and remained at par with the application of 75 per cent RDF+VC @ 2 t/ha over control.”

✓ located verbatim in the source · abstract, characters 511–943 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

100 per cent RDF+VC @ 2 t/ha significantly increased number of pods per plant, number of seeds per pod over control and was at par with 75 per cent RDF+VC @ 2 t/ha.

Treatment
100 per cent RDF+VC @ 2 t/hae0
Outcome
number of pods per plant, number of seeds per pode0
Direction
increasede0
Qualifier
remained at par with the application of 75 per cent RDF+VC @ 2 t/hae0
Comparator
controle0

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

“Results indicated that application of 100 per cent RDF+VC @ 2 t/ha significantly increased the plant height, number of branches per plant, chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed, straw and biological yield and remained at par with the application of 75 per cent RDF+VC @ 2 t/ha over control.”

✓ located verbatim in the source · abstract, characters 511–943 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

100 per cent RDF+VC @ 2 t/ha significantly increased seed, straw and biological yield over control and was at par with 75 per cent RDF+VC @ 2 t/ha.

Treatment
100 per cent RDF+VC @ 2 t/hae0
Outcome
seed, straw and biological yielde0
Direction
increasede0
Qualifier
remained at par with the application of 75 per cent RDF+VC @ 2 t/hae0
Comparator
controle0

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

“Results indicated that application of 100 per cent RDF+VC @ 2 t/ha significantly increased the plant height, number of branches per plant, chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed, straw and biological yield and remained at par with the application of 75 per cent RDF+VC @ 2 t/ha over control.”

✓ located verbatim in the source · abstract, characters 511–943 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Test weight and harvest index were unchanged across fertility levels.

Treatment
different fertility levelse0
Outcome
test weight and harvest indexe0
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

“However, application the test weight and harvest index unchanged under different fertility levels.”

✓ located verbatim in the source · abstract, characters 944–1042 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium and PSB inoculation significantly increased chlorophyll content.

Treatment
inoculation of Rhizobium and PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
chlorophyll contente0
Direction
increasede0

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

Verbatim

e0

“Results further indicated that inoculation of Rhizobium and PSB significantly increased the chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed and biological yield.”

✓ located verbatim in the source · abstract, characters 1043–1336 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium and PSB inoculation significantly increased total root and effective root nodules.

Treatment
inoculation of Rhizobium and PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
total root and effective root nodulese0
Direction
increasede0

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

Verbatim

e0

“Results further indicated that inoculation of Rhizobium and PSB significantly increased the chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed and biological yield.”

✓ located verbatim in the source · abstract, characters 1043–1336 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium and PSB inoculation significantly increased fresh weight and dry weight of nodules.

Treatment
inoculation of Rhizobium and PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
fresh weight and dry weight of nodulese0
Direction
increasede0

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

Verbatim

e0

“Results further indicated that inoculation of Rhizobium and PSB significantly increased the chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed and biological yield.”

✓ located verbatim in the source · abstract, characters 1043–1336 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium and PSB inoculation significantly increased leghaemoglobin content.

Treatment
inoculation of Rhizobium and PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
leghaemoglobin contente0
Direction
increasede0

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

Verbatim

e0

“Results further indicated that inoculation of Rhizobium and PSB significantly increased the chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed and biological yield.”

✓ located verbatim in the source · abstract, characters 1043–1336 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium and PSB inoculation significantly increased number of pods per plant, number of seeds per pod.

Treatment
inoculation of Rhizobium and PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
number of pods per plant, number of seeds per pode0
Direction
increasede0

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

Verbatim

e0

“Results further indicated that inoculation of Rhizobium and PSB significantly increased the chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed and biological yield.”

✓ located verbatim in the source · abstract, characters 1043–1336 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium and PSB inoculation significantly increased seed and biological yield.

Treatment
inoculation of Rhizobium and PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
seed and biological yielde0
Direction
increasede0

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

Verbatim

e0

“Results further indicated that inoculation of Rhizobium and PSB significantly increased the chlorophyll content, total root and effective root nodules, fresh weight and dry weight of nodules, leghaemoglobin content, number of pods per plant, number of seeds per pod, seed and biological yield.”

✓ located verbatim in the source · abstract, characters 1043–1336 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Rhizobium and PSB inoculation significantly increased height, branch number and straw yield over other treatments.

Treatment
inoculation of Rhizobium and PSBe0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0symbiont
Outcome
plant height, number of branches per plant and straw yielde0
Direction
increasede0
Comparator
rest of 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

“However, inoculation of Rhizobium and PSB significantly increased the plant height, number of branches per plant and straw yield over the rest of treatments.”

✓ located verbatim in the source · abstract, characters 1337–1494 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Test weight and harvest index remained unchanged across biofertilizer levels.

Treatment
different levels of biofertilizerse0
Outcome
test weight and harvest indexe0
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

“However, the test weight and harvest index remained unchanged under different levels of biofertilizers.”

✓ located verbatim in the source · abstract, characters 1495–1598 · show in text ↑
t0

“cowpea”

✓ located verbatim in the source · title, characters 69–75 · 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 · molecular: metabolites · Vigna unguiculata (cowpea)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 →

Rhizobium · physiology: pigments · Vigna unguiculata (cowpea)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 →

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: grain · Vigna unguiculata (cowpea)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

2 in the opposite direction

  1. positive
  2. positive
See all 3 papers →

inoculation · physiology: pigments · Vigna unguiculata (cowpea)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

8 of 13 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.