Paper · 2020 · Indian Journal of Weed Science

Comparative efficacy of herbicides and hand weeding to control weeds in onion

Dechen Angmo; Sandeep Chopra

7
claims
13
verbatim quotes
8
citations
2
research areas
✓
Open access · cc-by

Abstract

Effective and efficient weed management strategies are essential to raise a successful onion crop. Therefore, to find out the economically feasible weed management practice, a field experiment was conducted at Sher-e-Kashmir University of Agricultural Sciences and Technology, Jammu, during 2015–16 and 2016–17. Five herbicides namely pendimethalin1.0 kg/ha, oxyfluorfen 0.15 kg/ha, alachlor 1.0 kg/ha, butachlor 1.0 kg/ha and quizalofop-ethyl 0.05 kg/ha were applied alone or in different combinations replicated thrice in randomized block design. Data was recorded on weed density, dry matter accumulation of weeds, weed control efficiency, weed index, herbicide efficiency index and yield parameters. Pre-emergence application of oxyfluorfen 0.15 kg/ha fb one hand weeding at 40–60 days after transplanting recorded the highest weed control efficiency and the lowest values of weed density, dry matter accumulation of weeds and weed index. The pre-emergence application of oxyfluorfen 0.15 kg/ha fb post-emergence application of quizalofop-ethyl 0.05 kg/ha at 40 DAT was also found to be equally effective in controlling the weeds in onion. The yield attributing traits such as average bulb weight and total bulb yield also exhibited the same pattern. However, the highest B: C ratio was recorded with preemergence application of oxyfluorfen 0.15 kg/ha fb post-emergence application of quizalofop-ethyl 0.05 kg/ha applied 40 DAT. Hence, this treatment can be used for controlling the prevalent weed flora in onion crop under Jammu condition.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pre-emergence oxyfluorfen followed by hand weeding had the highest weed control efficiency.

Taxon
onionAllium cepat0
Treatment
Pre-emergence application of oxyfluorfen 0.15 kg/ha fb one hand weeding at 40–60 days after transplantinge0
Interactor
weedst0weed
Outcome
weed control efficiencye0
Direction
higheste0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Pre-emergence application of oxyfluorfen 0.15 kg/ha fb one hand weeding at 40–60 days after transplanting recorded the highest weed control efficiency”

✓ located verbatim in the source · abstract, characters 704–854 · show in text ↑
t0

“weeds in onion”

✓ located verbatim in the source · title, characters 63–77 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The oxyfluorfen and hand weeding treatment had the lowest weed density and dry matter accumulation.

Taxon
onionAllium cepat0
Treatment
Pre-emergence application of oxyfluorfen 0.15 kg/ha fb one hand weeding at 40–60 days after transplantinge0
Interactor
weedst0weed
Outcome
weed density, dry matter accumulation of weedse0
Direction
loweste0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Pre-emergence application of oxyfluorfen 0.15 kg/ha fb one hand weeding at 40–60 days after transplanting recorded the highest weed control efficiency and the lowest values of weed density, dry matter accumulation of weeds and weed index”

✓ located verbatim in the source · abstract, characters 704–941 · show in text ↑
t0

“weeds in onion”

✓ located verbatim in the source · title, characters 63–77 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The oxyfluorfen and hand weeding treatment had the lowest weed index.

Taxon
onionAllium cepat0
Treatment
Pre-emergence application of oxyfluorfen 0.15 kg/ha fb one hand weeding at 40–60 days after transplantinge0
Interactor
weedst0weed
Outcome
weed indexe0
Direction
loweste0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Pre-emergence application of oxyfluorfen 0.15 kg/ha fb one hand weeding at 40–60 days after transplanting recorded the highest weed control efficiency and the lowest values of weed density, dry matter accumulation of weeds and weed index”

✓ located verbatim in the source · abstract, characters 704–941 · show in text ↑
t0

“weeds in onion”

✓ located verbatim in the source · title, characters 63–77 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Oxyfluorfen followed by quizalofop-ethyl was equally effective at controlling onion weeds.

Taxon
onionAllium cepae0
Treatment
pre-emergence application of oxyfluorfen 0.15 kg/ha fb post-emergence application of quizalofop-ethyl 0.05 kg/ha at 40 DATe0
Interactor
weedse0weed
Outcome
controlling the weedse0
Direction
equally effectivee0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The pre-emergence application of oxyfluorfen 0.15 kg/ha fb post-emergence application of quizalofop-ethyl 0.05 kg/ha at 40 DAT was also found to be equally effective in controlling the weeds in onion”

✓ located verbatim in the source · abstract, characters 943–1142 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Average bulb weight and total bulb yield followed the same treatment pattern as weed control.

Taxon
onionAllium cepat0
Outcome
average bulb weight and total bulb yielde0
Qualifier
same patterne0

Not reportedDirection

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The yield attributing traits such as average bulb weight and total bulb yield also exhibited the same pattern”

✓ located verbatim in the source · abstract, characters 1144–1253 · show in text ↑
t0

“onion”

✓ located verbatim in the source · title, characters 72–77 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Oxyfluorfen followed by quizalofop-ethyl gave the highest benefit to cost ratio.

Taxon
onionAllium cepat0
Treatment
preemergence application of oxyfluorfen 0.15 kg/ha fb post-emergence application of quizalofop-ethyl 0.05 kg/ha applied 40 DATe0
Outcome
B: C ratioe0
Direction
higheste0

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the highest B: C ratio was recorded with preemergence application of oxyfluorfen 0.15 kg/ha fb post-emergence application of quizalofop-ethyl 0.05 kg/ha applied 40 DAT”

✓ located verbatim in the source · abstract, characters 1264–1431 · show in text ↑
t0

“onion”

✓ located verbatim in the source · title, characters 72–77 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend oxyfluorfen followed by quizalofop-ethyl to control weeds in onion under Jammu conditions.

Taxon
onionAllium cepae1
Treatment
pre-emergence application of oxyfluorfen 0.15 kg/ha fb post-emergence application of quizalofop-ethyl 0.05 kg/ha at 40 DATe0
Interactor
weed florae1weed
Outcome
controlling the prevalent weed florae1
Setting
Jammue1

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The pre-emergence application of oxyfluorfen 0.15 kg/ha fb post-emergence application of quizalofop-ethyl 0.05 kg/ha at 40 DAT”

✓ located verbatim in the source · abstract, characters 943–1069 · show in text ↑
e1

“this treatment can be used for controlling the prevalent weed flora in onion crop under Jammu condition”

✓ located verbatim in the source · abstract, characters 1440–1543 · show in text ↑

Oxyfluorfen · weed · Allium cepa (onion)Positive and negative results

35 papers: 34 positive, 1 negative or no effect

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

  1. positive
  2. negative
  3. positive

31 papers more in this group

See all 35 papers →

Oxyfluorfen · yield · Allium cepa (onion)Positive and negative results

39 papers: 37 positive, 2 negative or no effect

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

  1. positive
  2. negative
  3. no effect

35 papers more in this group

See all 39 papers →

quizalofop-ethyl · weed · Allium cepa (onion)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 →

quizalofop-ethyl · yield · Allium cepa (onion)Results agree

10 papers: 10 positive, 0 negative or no effect

9 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

6 papers more in this group

See all 10 papers →

herbicide · yield · Allium cepa (onion)Results differ

88 papers: 75 positive, 13 negative or no effect

74 papers in the same direction as this paper · 9 in the opposite direction · 4 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

84 papers more in this group

See all 88 papers →

transplanting · weed · Allium cepa (onion)Positive and negative results

15 papers: 14 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

11 papers more in this group

See all 15 papers →

herbicide · weed · Allium cepa (onion)Positive and negative results

74 papers: 72 positive, 2 negative or no effect

71 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. positive
  3. negative

70 papers more in this group

See all 74 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.