Intervention effectmodel-written summary

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

A claim from Comparative efficacy of herbicides and hand weeding to control weeds in onion · 2020

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 reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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
t0

“onion”

✓ located verbatim in the source · title, characters 72–77

Title

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

Dechen Angmo; Sandeep Chopra Indian Journal of Weed Science 2020. doi:10.5958/0974-8164.2020.00009.x

Other claims from this paper (6)

Record rev-ef97780d5e18f5dbe523360bad1029b094ef74f0555f828186f9b06bdb29e65f · schema claims-v0.9 · position 6 in the model’s answer

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 claim · 1 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
    In onion, T8 (oxyfluorfen as PE plus quizalofop-ethyl as POE) had a considerably greater benefit:cost ratio than T6 (pendimethalin as PE plus quizalofop-ethyl as POE).

    Yield and Economics of Onion as Influenced by Pre and Post Emergence Herbicdes · 2023 · compared with T6 (Pendimethalin @ 0.75 kg a.iper hectare as PE + Quizalofop ethyl @ 75 g a.iper hectare as POE)

    Same directionCites this paper

  2. negative
    Oxyfluorfen in two treatments with pyridate gave the lowest onion yield.

    The influence of selected herbicides and their mixtures used with split application method on weed infestation growth and yield of onion · 2021

    Opposite direction

  3. no effect
    There was no difference in onion yield among the oxyfluorfen EC and SC treatments.

    Postemergence Weed Control in Onion with Bentazon, Flumioxazin, and Oxyfluorfen · 2017 · compared with oxyfluorfen SC

    No difference from an alternative

  4. positive
    Oxyfluorfen followed by hand weeding gave bulb yield of 16.54 t/ha, above no weeding and at par with three manual weedings.

    Integrated Weed Management in Onion (Allium cepa L.) · 1999 · compared with no weeding

    Same direction

  5. positive
    Oxyfluorfen at lower doses with one or two hand weedings gave higher onion yields than oxyfluorfen alone at higher doses.

    Integrated Weed Management in Onion · 2006 · compared with their application alone at higher doses

    Same direction

  6. positive
    Oxyfluorfen treated onion had the greatest total yield.

    Multiple Applications of Reduced-Rate Herbicides for Weed Control in Onion · 2010 · compared with onion treated with bromoxynil

    Same direction

  7. positive
    Post-planting oxyfluorfen yielded more onion bulbs than hand weeding at both locations.

    Chemical control of weeds in onion (Allium cepaL.) · 2005 · compared with hand-weeded, weed-free control

    Same direction

  8. positive
    Application of oxyfluorfen (0.14–0.43 kg ai ha −1 ) produced onion yields comparable to hand weeding.

    Chemical weed control in transplanted onion (Allium cepa L.) in the Sudan Gezira · 1986 · compared with hand‐weeded control

    Same direction

30 papers more in this group

See all 39 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 claim

  1. positive
    Pendimethalin and oxyflourfen followed by Quizalofop ethyl were comparable to three hand weedings for onion leaves, LAI, dry matter and bulb yield.

    Effect of Pre and Post Emergence Herbicides on Growth Parameters in Onion cv. N-53 · 2018 · compared with hand weeding thrice

    Same directionCites this paper

  2. positive
    In onion, T8 (oxyfluorfen as PE plus quizalofop-ethyl as POE) had a considerably greater benefit:cost ratio than T6 (pendimethalin as PE plus quizalofop-ethyl as POE).

    Yield and Economics of Onion as Influenced by Pre and Post Emergence Herbicdes · 2023 · compared with T6 (Pendimethalin @ 0.75 kg a.iper hectare as PE + Quizalofop ethyl @ 75 g a.iper hectare as POE)

    Same directionCites this paper

  3. positive
    The herbicide combination produced higher number of seeds per umbel in onion.

    Weed management in onion by pre-planting and post-emergence herbicides for seed production · 2014

    Same direction

  4. positive
    Pre-emergence oxyfluorfen followed by post-emergence quizalofop ethyl gave the highest onion yield among herbicide treatments.

    Influence of Weed Management Practice on Yield and Quality of Onion under Sub-Tropical Condition of Jammu · 2018 · compared with herbicidal treatments

    Same direction

  5. positive
    Pendimethalin followed by quizalofop-ethyl plus oxyfluorfen at 45 DAT had the highest benefit:cost ratio, 3.48.

    Weed control in onion with herbicides · 2014

    Same direction

  6. positive
    The oxyflurofen and quizalofop combination gave the highest bulb yield.

    Effect of different herbicides on growth, yield and weed flora of onion (Allium cepa L.) · 2014

    Same direction

  7. positive
    Oxyfluorfen plus quizalofop ethyl spray gave the significantly highest bulb yield of onion (277.44q/ha), above farmers’ practice (252.22q/ha).

    Efficacy of chemical herbicides on weed management in onion (Allium cepa) · 2022 · compared with farmers’ practice

    Same direction

  8. positive
    The highest benefit:cost ratio, 2.89:1.0, in onion was in the herbicide treatment of oxyfluorfen pre-transplanting plus one hand weeding at 30 DAT plus quizalofop-ethyl at 60 DAT.

    Evaluation of chemical and non-chemical weed control methods in onion: An integrated weed management approach · 2024

    Same direction

1 paper 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 claim · 9 in the opposite direction · 4 reporting no difference from an alternative

  1. positive
    Hand weeding (weed free, at 30, 60 and 90 DAT) significantly outperformed the other treatments in gross and net returns in onion.

    Yield and Economics of Onion as Influenced by Pre and Post Emergence Herbicdes · 2023 · compared with the other treatments

    Same directionCites this paper

  2. no effect
    Onion yield was not reduced after two to twelve weeks of weed free maintenance.

    Common Sunflower (Helianthus annuus) Interference in Onions (Allium cepa) · 1981

    Opposite direction

  3. negative
    Rain-delayed grass herbicide application lowered onion yield in Carrington in 2002.

    Companion Crop and Planting Configuration Effect on Onion · 2006

    Opposite direction

  4. no effect
    Total onion yield did not differ significantly between weeding methods in the growing seasons studied.

    The Technology of Precise Application of Herbicides in Onion Field Cultivation · 2021

    Opposite direction

  5. no effect
    Other post-emergence herbicide applications had no significant effect on onion yield.

    Effects of Herbicides on Horticultural Characteristics, Yield and Quality of Onions · 1970

    Opposite direction

  6. no effect
    Weed-free conditions beyond 90 days did not significantly improve bulb yield.

    Crop-weed competition in onion (Allium cepa) under mid-hill condition of North-west Himalayas* · 2006

    Opposite direction

  7. no effect
    Preemergence pendimethalin did not affect onion yield under furrow irrigation.

    Prowl and Prefar for Onion Weed Control · 1999

    Opposite direction

  8. negative
    Seed-sown onion under pre- and post-emergence flaming plus two inter-row cultivations had high yield loss.

    Effects of different non-chemical weed control on the yield and quality of onion (Allium cepa L.). · 2005

    Opposite direction

79 papers more in this group

See all 88 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.