Paper · 2005 · AgEcon Search (University of Minnesota, USA)

Effect of Rhizobium inoculum and N-fertilizer on bio-mass production of cowpea (Vigna unguiculata) forage at different stages of maturity

Sultana, M. N.; Khan, M. J.; Khandaker, Z. H.; et al.

10
claims
18
verbatim quotes
5
citations
2
research areas
✓
Open access

Abstract

An experiment was conducted for a period of 60 (sixty) days during March to May 2003 to study the effect of Rhizobium inoculum and N-fertilizer on bio-mass production in 3 (three) stages (40d, 50d and 60d) of maturity of cowpea plants following a randomized block design (RBD). There were six treatments as: To (uninoculated control), Ti (inoculated), T2 (25 kg N/ha), T3 (inoculated 25 kg N/ha), T4 (35 kg N/ha) and T5 (45 kg N/ha) having three replication in each treatment With the advancement of plant age, yield of cowpea forage on green as well as dry basis increased linearly. The maximum green biomass (265 q/ha) production was attained in treatment T5 at 60 days of plant age against 200 q/h in untreated control (To). Similar trend was observed in total dry matter and organic matter production (P<0.05) at harvest age of 60 days. Crude protein in different treatments raged from 5.39 to 4.74, 4.24 to 6.64 and 4.04 to 6.35 q/ha in 40, 50 and 60 days of plant age respectively. Maximum yield of crude protein attained at 50% flowering stage (50d) of maturity in all treatments. Rhizobium inoculum and/or nitrogen fertilizer application had significant (P<0.01) effect on green matter, DM, OM, and CP yield of cowpea forage. Rhizobium inoculum with or without N-fertilizer or nitrogen fertilizer alone significantly (P<0.01) and progressively increased plant height over the control but decreased leaf and stem ratio at all stages of maturity. Inoculum + N fertilizer and N-fertilizer alone with the application of 35 to 45 kg N/ha from urea showed a tendency to enhance rate of branching compared to control (P<0.05).

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Claims 10

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Cowpea forage green and dry yield increased linearly with age.

Outcome
yield of cowpea forage on green as well as dry basise0
Direction
increasede0

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

“With the advancement of plant age, yield of cowpea forage on green as well as dry basis increased linearly.”

✓ located verbatim in the source · abstract, characters 476–583 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Treatment T5 at 60 days produced maximum green biomass of 265 q/ha versus 200 q/h in control.

Organ / stage
60 days of plant agee0
Treatment
T5e0
Outcome
green biomasse0
Direction
maximume0
Value
265 q/hae0
Qualifier
200 q/he0
Comparator
untreated control (To)e0

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 maximum green biomass (265 q/ha) production was attained in treatment T5 at 60 days of plant age against 200 q/h in untreated control (To).”

✓ located verbatim in the source · abstract, characters 584–727 · show in text ↑
t0

“cowpea (Vigna unguiculata)”

✓ located verbatim in the source · title, characters 72–98 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Total dry matter production followed the green biomass trend at 60 days.

Organ / stage
60 dayse0
Outcome
total dry mattere0
Direction
Similar trende0

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

“Similar trend was observed in total dry matter and organic matter production (P<0.05) at harvest age of 60 days.”

✓ located verbatim in the source · abstract, characters 728–840 · show in text ↑
t0

“cowpea (Vigna unguiculata)”

✓ located verbatim in the source · title, characters 72–98 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Organic matter production followed the green biomass trend at 60 days.

Organ / stage
60 dayse0
Outcome
organic matter productione0
Direction
Similar trende0

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

“Similar trend was observed in total dry matter and organic matter production (P<0.05) at harvest age of 60 days.”

✓ located verbatim in the source · abstract, characters 728–840 · show in text ↑
t0

“cowpea (Vigna unguiculata)”

✓ located verbatim in the source · title, characters 72–98 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Crude protein yield was greatest at 50% flowering across treatments.

Organ / stage
50% flowering stage (50d)e0
Outcome
yield of crude proteine0
Direction
Maximume0

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

“Maximum yield of crude protein attained at 50% flowering stage (50d) of maturity in all treatments.”

✓ located verbatim in the source · abstract, characters 988–1087 · show in text ↑
t0

“cowpea (Vigna unguiculata)”

✓ located verbatim in the source · title, characters 72–98 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Inoculum and/or nitrogen fertilizer significantly affected green matter, dry matter, organic matter and crude protein yields.

Treatment
Rhizobium inoculum and/or nitrogen fertilizer applicatione0
Interactor
RhizobiumRhizobiume0symbiont
Outcome
green matter, DM, OM, and CP yielde0

Not reportedComparatorDirection

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

“Rhizobium inoculum and/or nitrogen fertilizer application had significant (P<0.01) effect on green matter, DM, OM, and CP yield of cowpea forage.”

✓ located verbatim in the source · abstract, characters 1088–1233 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Inoculum with or without fertilizer or nitrogen alone increased plant height relative to control.

Treatment
Rhizobium inoculum with or without N-fertilizer or nitrogen fertilizer alonee0
Interactor
RhizobiumRhizobiume0symbiont
Outcome
plant heighte0
Direction
increasede0
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 ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Rhizobium inoculum with or without N-fertilizer or nitrogen fertilizer alone significantly (P<0.01) and progressively increased plant height over the control but decreased leaf and stem ratio at all stages of maturity.”

✓ located verbatim in the source · abstract, characters 1234–1452 · show in text ↑
t0

“cowpea (Vigna unguiculata)”

✓ located verbatim in the source · title, characters 72–98 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Those treatments decreased leaf and stem ratio at all stages.

Treatment
Rhizobium inoculum with or without N-fertilizer or nitrogen fertilizer alonee0
Interactor
RhizobiumRhizobiume0symbiont
Outcome
leaf and stem ratioe0
Direction
decreasede0
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 ↗
Rhizobium
Rhizobium · Interactor · picture of the genus (one of its species)Ninjatacoshell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Rhizobium inoculum with or without N-fertilizer or nitrogen fertilizer alone significantly (P<0.01) and progressively increased plant height over the control but decreased leaf and stem ratio at all stages of maturity.”

✓ located verbatim in the source · abstract, characters 1234–1452 · show in text ↑
t0

“cowpea (Vigna unguiculata)”

✓ located verbatim in the source · title, characters 72–98 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Inoculum plus fertilizer tended to enhance branching versus control.

Treatment
Inoculum + N fertilizere0
Outcome
rate of branchinge0
Direction
enhancee0
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

“Inoculum + N fertilizer and N-fertilizer alone with the application of 35 to 45 kg N/ha from urea showed a tendency to enhance rate of branching compared to control (P<0.05).”

✓ located verbatim in the source · abstract, characters 1453–1627 · show in text ↑
t0

“cowpea (Vigna unguiculata)”

✓ located verbatim in the source · title, characters 72–98 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen fertilizer alone at 35 to 45 kg N/ha tended to enhance branching versus control.

Treatment
N-fertilizer alone with the application of 35 to 45 kg N/ha from ureae0
Outcome
rate of branchinge0
Direction
enhancee0
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

“Inoculum + N fertilizer and N-fertilizer alone with the application of 35 to 45 kg N/ha from urea showed a tendency to enhance rate of branching compared to control (P<0.05).”

✓ located verbatim in the source · abstract, characters 1453–1627 · show in text ↑
t0

“cowpea (Vigna unguiculata)”

✓ located verbatim in the source · title, characters 72–98 · 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 →

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. no effect
  2. negative
  3. no effect

41 papers more in this group

See all 45 papers →

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

102 papers: 92 positive, 10 negative or no effect

91 papers in the same direction as this paper · 8 in the opposite direction · 2 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

98 papers more in this group

See all 102 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 →

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.