Paper · 2025 · International Journal of Research in Agronomy

Effect of organic manures and microbial culture on growth and yield of cowpea (Vigna unguiculata L.)

Thangsabam Naobicha; Vijay Bahadur; Ram Bharose

17
claims
46
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

The present experiment was carried out during September, 2024 to March, 2025 in Research Field, Department of Horticulture, SHUATS, Prayagraj. A field experiment was undertaken to determine the optimal combination of organic manures and microbial culture treatments suited to the agroclimatic conditions of Prayagraj. The study was laid out in a Randomized Block Design (RBD) comprising ten treatment combinations, each replicated three times. From the present experimental findings, it was observed that treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters like plant height (64.93 cm), number of branches (17.20), number of leaves (81.83), days taken to first flowering (34.20 days), days taken to 50% (55.96), number of days to harvest (59.83), number of pods per plant (12.13), number of seeds per pod (12.95), pod length (32.96 cm), pod girth (2.59 cm) and pods yield q per hectare (108.80). In terms of maximum gross returns (Rs. 326400.00 per ha), net returns (Rs. 253262.00 per ha) and benefit-cost ratio (3.46) is found in treatment T8 followed by T3 (Poultry manure (15t/ha)), whereas minimum is recorded in treatment T1 (RDF (20:40:20 kg/ha)).

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 17

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 (poultry manure 15 t/ha with Rhizobium and PSB) was best in all the parameters measured in cowpea.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
all the parameterse0
Direction
beste0

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for plant height, 64.93 cm.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
plant heighte1
Direction
beste0
Value
64.93 cme1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“plant height (64.93 cm)”

✓ located verbatim in the source · abstract, characters 620–643 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for number of branches, 17.20.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
number of branchese1
Direction
beste0
Value
17.20e1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“number of branches (17.20)”

✓ located verbatim in the source · abstract, characters 645–671 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for number of leaves, 81.83.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
number of leavese1
Direction
beste0
Value
81.83e1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“number of leaves (81.83)”

✓ located verbatim in the source · abstract, characters 673–697 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for days taken to first flowering, 34.20 days.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
days taken to first floweringe1
Direction
beste0
Value
34.20 dayse1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“days taken to first flowering (34.20 days)”

✓ located verbatim in the source · abstract, characters 699–741 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for days taken to 50 percent flowering, 55.96.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
days taken to 50%e1
Direction
beste0
Value
55.96e1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“days taken to 50% (55.96)”

✓ located verbatim in the source · abstract, characters 743–768 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for number of days to harvest, 59.83.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
number of days to harveste1
Direction
beste0
Value
59.83e1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“number of days to harvest (59.83)”

✓ located verbatim in the source · abstract, characters 770–803 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for number of pods per plant, 12.13.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
number of pods per plante1
Direction
beste0
Value
12.13e1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“number of pods per plant (12.13)”

✓ located verbatim in the source · abstract, characters 805–837 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for number of seeds per pod, 12.95.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
number of seeds per pode1
Direction
beste0
Value
12.95e1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“number of seeds per pod (12.95)”

✓ located verbatim in the source · abstract, characters 839–870 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for pod length, 32.96 cm.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
pod lengthe1
Direction
beste0
Value
32.96 cme1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“pod length (32.96 cm)”

✓ located verbatim in the source · abstract, characters 872–893 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for pod girth, 2.59 cm.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
pod girthe1
Direction
beste0
Value
2.59 cme1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“pod girth (2.59 cm)”

✓ located verbatim in the source · abstract, characters 895–914 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 was best for pod yield, 108.80 q per hectare.

Treatment
Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)e0
Interactor
RhizobiumRhizobiume0symbiont
Second interactor
PSBe0other
Outcome
pods yield q per hectaree1
Direction
beste0
Value
108.80e1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“treatment T8 (Poultry manure (15t/ha) + Rhizobium (20 g/kg) + PSB (20 g/kg)) found best in all the parameters”

✓ located verbatim in the source · abstract, characters 505–614 · show in text ↑
e1

“pods yield q per hectare (108.80)”

✓ located verbatim in the source · abstract, characters 919–952 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 gave the maximum gross returns, Rs. 326400.00 per ha.

Treatment
T8e0
Outcome
gross returnse0
Direction
maximume0
Value
Rs. 326400.00 per hae0

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“In terms of maximum gross returns (Rs. 326400.00 per ha), net returns (Rs. 253262.00 per ha) and benefit-cost ratio (3.46) is found in treatment T8 followed by T3 (Poultry manure (15t/ha))”

✓ located verbatim in the source · abstract, characters 954–1142 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 gave the highest net returns, Rs. 253262.00 per ha.

Treatment
T8e0
Outcome
net returnse0
Direction
higherinferrede0
Value
Rs. 253262.00 per hae0

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“In terms of maximum gross returns (Rs. 326400.00 per ha), net returns (Rs. 253262.00 per ha) and benefit-cost ratio (3.46) is found in treatment T8 followed by T3 (Poultry manure (15t/ha))”

✓ located verbatim in the source · abstract, characters 954–1142 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T8 gave the highest benefit-cost ratio, 3.46.

Treatment
T8e0
Outcome
benefit-cost ratioe0
Direction
higherinferrede0
Value
3.46e0

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“In terms of maximum gross returns (Rs. 326400.00 per ha), net returns (Rs. 253262.00 per ha) and benefit-cost ratio (3.46) is found in treatment T8 followed by T3 (Poultry manure (15t/ha))”

✓ located verbatim in the source · abstract, characters 954–1142 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T3 (poultry manure 15 t/ha alone) ranked second after T8 in returns.

Treatment
Poultry manure (15t/ha)e0
Outcome
returnse0
Direction
followed bye0
Comparator
T8e0

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“In terms of maximum gross returns (Rs. 326400.00 per ha), net returns (Rs. 253262.00 per ha) and benefit-cost ratio (3.46) is found in treatment T8 followed by T3 (Poultry manure (15t/ha))”

✓ located verbatim in the source · abstract, characters 954–1142 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Treatment T1 (RDF 20:40:20 kg/ha) gave the minimum returns.

Treatment
RDF (20:40:20 kg/ha)e1
Outcome
returnse0
Direction
minimume1

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

t0

“cowpea (Vigna unguiculata L.)”

✓ located verbatim in the source · title, characters 71–100 · show in text ↑
e0

“In terms of maximum gross returns (Rs. 326400.00 per ha), net returns (Rs. 253262.00 per ha) and benefit-cost ratio (3.46) is found in treatment T8 followed by T3 (Poultry manure (15t/ha))”

✓ located verbatim in the source · abstract, characters 954–1142 · show in text ↑
e1

“whereas minimum is recorded in treatment T1 (RDF (20:40:20 kg/ha))”

✓ located verbatim in the source · abstract, characters 1144–1210 · show in text ↑

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 · phenology · 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 · 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 →

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

143 papers: 131 positive, 12 negative or no effect

130 papers in the same direction as this paper · 10 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

139 papers more in this group

See all 143 papers →

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

292 papers: 275 positive, 17 negative or no effect

274 papers in the same direction as this paper · 15 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

288 papers more in this group

See all 292 papers →

fertilization · phenology · 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 →

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.