Paper · 2001 · Indian Journal of Agronomy

Influence of weed management practices on weed dynamics and yield of urdbean (Vigna mungo) under rainfed conditions of Jammu

VIKAS GUPTA; MAHENDER SINGH; ANIL KUMAR; et al.

7
claims
14
verbatim quotes
8
citations
2
research areas
✓
Open access

Abstract

Experiments were conducted during kharif 2007 and 2009 in Inceptisols, to study the effect of different pre (PE) and post-emergence (POE) herbicides along with two hand weedings (HW) at 20 and 40 days after sowing (DAS) and weedy check on urdbean {Vigna mungo (L.) Hepper}. Highest seed yield was observed with two HWs at 20 and 40 DAS and the values were found statistically at par with POE application of imazethapyr 25 g/ha at 20 DAS. The highest weed control efficiency and lowest weed biomass was recorded with two HWs at 20 and 40 DAS fol- lowed by application of imazethapyr 25 g/ha (post-emergence) at 20 DAS. Application of Fenoxaprop-p-ethyl, quizalofop-p-ethyl, chlorimuron-p-ethyl as post-emergence and their combinations also reduced weed biomass and improved seed yield and yield attributing parameters as compared to weedy check. Treatment weedy check registered the highest values of weed count and weeds biomass and lowest seed yield and yield attributing char- acters in both the years of study. Rainfall was directly related to weed count and weed dry matter accumulation with the coefficient of 0.65 and 0.61, respectively. Weed dry matter accumulation was directly related with sun- shine hours with an accuracy of 67%, whereas, weed count was lesser related with sunshine hours of the day with an accuracy of 34%. Grain and biological yield of urdbean crop decreased at the rate of 3.3 and 7.5 kg/ha under weedy check with an accuracy of 88 and 73%, respectively.

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Claims 7

Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

Two hand weedings gave the highest urdbean seed yield, statistically at par with imazethapyr.

Taxon
Vigna mungoVigna mungot0
Treatment
two HWs at 20 and 40 DASe0
Outcome
seed yielde0
Direction
Higheste0
Comparator
POE application of imazethapyr 25 g/ha at 20 DASe0

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Highest seed yield was observed with two HWs at 20 and 40 DAS and the values were found statistically at par with POE application of imazethapyr 25 g/ha at 20 DAS.”

✓ located verbatim in the source · abstract, characters 274–437 · show in text ↑
t0

“Vigna mungo”

✓ located verbatim in the source · title, characters 78–89 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Two hand weedings produced the highest weed control efficiency.

Taxon
Vigna mungoVigna mungot0
Treatment
two HWs at 20 and 40 DASe0
Outcome
weed control efficiencye0
Direction
higheste0

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest weed control efficiency and lowest weed biomass was recorded with two HWs at 20 and 40 DAS”

✓ located verbatim in the source · abstract, characters 438–540 · show in text ↑
t0

“Vigna mungo”

✓ located verbatim in the source · title, characters 78–89 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Two hand weedings produced the lowest weed biomass.

Taxon
Vigna mungoVigna mungot0
Treatment
two HWs at 20 and 40 DASe0
Outcome
weed biomasse0
Direction
loweste0

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The highest weed control efficiency and lowest weed biomass was recorded with two HWs at 20 and 40 DAS”

✓ located verbatim in the source · abstract, characters 438–540 · show in text ↑
t0

“Vigna mungo”

✓ located verbatim in the source · title, characters 78–89 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Post-emergence fenoxaprop-p-ethyl, quizalofop-p-ethyl and chlorimuron-p-ethyl reduced weed biomass relative to a weedy check.

Taxon
Vigna mungoVigna mungot0
Treatment
Fenoxaprop-p-ethyl, quizalofop-p-ethyl, chlorimuron-p-ethyl as post-emergence and their combinationse0
Outcome
weed biomasse0
Direction
reducede0
Comparator
weedy checke0

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of Fenoxaprop-p-ethyl, quizalofop-p-ethyl, chlorimuron-p-ethyl as post-emergence and their combinations also reduced weed biomass and improved seed yield and yield attributing parameters as compared to weedy check.”

✓ located verbatim in the source · abstract, characters 618–844 · show in text ↑
t0

“Vigna mungo”

✓ located verbatim in the source · title, characters 78–89 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same post-emergence herbicides improved seed yield and yield attributes relative to a weedy check.

Taxon
Vigna mungoVigna mungot0
Treatment
Fenoxaprop-p-ethyl, quizalofop-p-ethyl, chlorimuron-p-ethyl as post-emergence and their combinationse0
Outcome
seed yield and yield attributing parameterse0
Direction
improvede0
Comparator
weedy checke0

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of Fenoxaprop-p-ethyl, quizalofop-p-ethyl, chlorimuron-p-ethyl as post-emergence and their combinations also reduced weed biomass and improved seed yield and yield attributing parameters as compared to weedy check.”

✓ located verbatim in the source · abstract, characters 618–844 · show in text ↑
t0

“Vigna mungo”

✓ located verbatim in the source · title, characters 78–89 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Rainfall was directly related to weed count with a coefficient of 0.65.

Taxon
Vigna mungoVigna mungot0
Outcome
weed counte0
Direction
directly relatede0
Value
0.65e0
Setting
Rainfalle0

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Rainfall was directly related to weed count and weed dry matter accumulation with the coefficient of 0.65 and 0.61, respectively.”

✓ located verbatim in the source · abstract, characters 1014–1143 · show in text ↑
t0

“Vigna mungo”

✓ located verbatim in the source · title, characters 78–89 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Rainfall was directly related to weed dry matter accumulation with a coefficient of 0.61.

Taxon
Vigna mungoVigna mungot0
Outcome
weed dry matter accumulatione0
Direction
directly relatede0
Value
0.61e0
Setting
Rainfalle0

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

Vigna mungo
Vigna mungo · TaxonSanjay Acharya · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Rainfall was directly related to weed count and weed dry matter accumulation with the coefficient of 0.65 and 0.61, respectively.”

✓ located verbatim in the source · abstract, characters 1014–1143 · show in text ↑
t0

“Vigna mungo”

✓ located verbatim in the source · title, characters 78–89 · show in text ↑

quizalofop-P-ethyl · weed · Vigna mungo (black gram)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 →

quizalofop-P-ethyl · yield · Vigna mungo (black gram)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 →

herbicide · weed · Vigna mungo (black gram)Positive and negative results

69 papers: 66 positive, 3 negative or no effect

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

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

65 papers more in this group

See all 69 papers →

herbicide · yield · Vigna mungo (black gram)Positive and negative results

95 papers: 89 positive, 6 negative or no effect

88 papers in the same direction as this paper · 3 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

91 papers more in this group

See all 95 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.