Intervention effectmodel-written summary

Early herbicide application produced no recorded yield penalty.

A claim from An assessment of the concept of early time of weed removal in field pea using natural weed populations · 2003

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Early herbicide application produced no recorded yield penalty.

Taxon
field peat0
Treatment
early applications of herbicidee0
Outcome
yield penaltye0
Direction
no yield penaltye0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

Verbatim

e0

“There was no yield penalty recorded from early applications of herbicide”

✓ located verbatim in the source · abstract, characters 956–1028
t0

“field pea”

✓ located verbatim in the source · title, characters 62–71

Title

An assessment of the concept of early time of weed removal in field pea using natural weed populations

W. E. May; G. P. Lafond; E. N. Johnson; et al. Canadian Journal of Plant Science 2003. doi:10.4141/p02-081

Other claims from this paper (3)

Record rev-39090366f2f9cdfeb8f8f47482724f00a9505c3de35d728532601f9f840a2ab3 · schema claims-v0.9 · position 2 in the model’s answer

herbicide · yield · Lathyrus oleraceus (pea)Results differ

62 papers: 45 positive, 17 negative or no effect

44 papers in the same direction as this claim · 16 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Combined harrowing caused no observed yield loss in peas.

    Effects of pre‐ and post‐emergence weed harrowing on annual weeds in peas and spring cereals · 2009

    Opposite direction

  2. negative
    Pre-emergence herbicides decreased pea seed yield.

    Effects of herbicides on nodulation, symbiotic nitrogen fixation, growth and yield of pea (Pisum sativum) · 1999

    Opposite direction

  3. no effect
    Herbicide treatments did not reduce pea biomass or seed yield.

    Effects of Imazethapyr and Pendimethalin on Lentil (Lens culinaris), Pea (Pisum sativum), and a Subsequent Winter Wheat (Triticum aestivum) Crop1 · 2001 · compared with untreated control

    Opposite direction

  4. no effect
    Cyanazine and linuron did not affect pea pod number, grains per pod, grain weight or grain yield.

    Assessment of dimethoate toxicity on compost worm (Eisenia andrei) using earthworm avoidance test. · 2007

    Opposite direction

  5. negative
    Herbicide treatments decreased vegetative weight and pea yield to different degrees.

    Interaction between Nutrition and Herbicide Application in Pea Culture · 2009

    Opposite direction

  6. negative
    Herbicides decreased pea seed yield.

    Effect of weed management on weeds, and on the nodulation, nitrogenase activity, growth and yield of pea (Pisum sativum) · 2006

    Opposite direction

  7. no effect
    Pea seed yield was not affected by herbicide treatments at any location.

    Response of Rotational Crops to BAY MKH 65611 · 2001

    Opposite direction

  8. no effect
    Pre-emergence methabenzthiazuron gave yields comparable to two hand hoeings.

    Efficiency of Different Herbicides for Weed Control in Peas · 1980 · compared with two hand hoeings

    Opposite direction

53 papers more in this group

See all 62 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.