Intervention effectmodel-written summary

Pendimethalin plus hand weeding yielded 36.6 t/ha onion bulbs in the second year.

A claim from Performance of onion under weed and fertilizer management · 2012

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pendimethalin plus hand weeding yielded 36.6 t/ha onion bulbs in the second year.

Taxon
onionAllium cepae0
Treatment
pendimethalin 1.0 kg/ha followed by one hand weedinge0
Outcome
onion bulb yielde0
Direction
highere0
Value
36.6e0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

“pendimethalin 1.0 kg/ha followed by one hand weeding produced higher onion bulb yield of 39.3, 36.6 and 38.0 t/ha during both years as well as in pooled”

✓ located verbatim in the source · abstract, characters 659–811

Title

Performance of onion under weed and fertilizer management

T.U. Patel; C. L. Patel; DP Patel; et al. Indian Journal of Weed Science 2012

Other claims from this paper (14)

Record rev-9f73e25b84efec997b33970aad9d5b3fa2ff58c0610352a63adacf2d394c0517 · schema claims-v0.9 · position 5 in the model’s answer

pendimethalin · yield · Allium cepa (onion)Results differ

38 papers: 34 positive, 4 negative or no effect

33 papers in the same direction as this claim · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
    Pendimethalin at lower doses with one or two hand weedings gave higher onion yields than pendimethalin alone at higher doses.

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

    Same directionCited by this paper

  2. 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 directionCites this paper

  3. positive
    Sequential pendimethalin and oxyfluorfen gave the highest onion bulb yield of 21.89 t/ha.

    Productivity of winter (rabi) onion (Allium cepa) as influenced by sole and sequential application of herbicides · 2001

    Same directionCites this paper

  4. no effect
    Flumioxazin at 0.036 or 0.072 kg ai/ha alone or with pendimethalin ACS caused no onion yield reduction.

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

    Opposite direction

  5. negative
    The ethoxysulfuron sequence caused severe onion phytotoxicity and significantly reduced onion yield.

    Residual effects of herbicides on weed interference and productivity in wheat (Triticum aestivum) under a conservation agriculture-based onion (Allium cepa)–wheat cropping system · 2023

    Opposite direction

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

    Prowl and Prefar for Onion Weed Control · 1999

    Opposite direction

  7. no effect
    Onion yields with bensulide and pendimethalin were comparable to DCPA-treated fields.

    Combining bensulide and pendimethalin controls weeds in onions · 2001 · compared with DCPA

    No difference from an alternative

  8. positive
    Pendimethalin followed by hand weeding gave bulb yield of 16.18 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

29 papers more in this group

See all 38 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
    Pre-emergence fluchloralin at 1.0 kg ha−1 with two hand weedings gave the highest onion bulb yield, 72.4 t ha−1.

    Integrated Weed Management in Onion · 2006

    Same directionCited by this paper

  2. positive
    Oxadiazon at 2.0 l/ha plus hand weeding produced the highest bulb yield in both seasons.

    Impact of Integrated Weed Management on Bulb Yield of Onion · 2020

    Same directionCites this paper

  3. 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

  4. 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

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

    Companion Crop and Planting Configuration Effect on Onion · 2006

    Opposite direction

  6. 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

  7. 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

  8. 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

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.