Intervention effectmodel-written summary

In 2022, weed control treatments and row spacing had no effect on oilseed rape biomass, root diameter, or yield.

A claim from Camera-guided inter-row hoeing in winter oilseed rape with different inter-inter-row spacing · 2024

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

In 2022, weed control treatments and row spacing had no effect on oilseed rape biomass, root diameter, or yield.

Taxon
oilseed rapeBrassica napuse0
Treatment
weed control treatments and inter-row spacinge0
Outcome
biomass, root diameter and yielde0
Direction
no effecte0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“In 2022, weed control treatments and inter-row spacing had no effect on oilseed rape biomass, root diameter and yield”

✓ located verbatim in the source · abstract, characters 1238–1355

Title

Camera-guided inter-row hoeing in winter oilseed rape with different inter-inter-row spacing

Roland Gerhards; Marcus Saile; Michael Spaeth Plant Soil and Environment 2024. doi:10.17221/485/2023-pse

Other claims from this paper (6)

Record rev-059c085c307e1531edf5275e8cdf3d3336e57c6dcf805370b55a54f3b3943716 · schema claims-v0.9 · position 6 in the model’s answer

herbicide · yield · Brassica napus (oilseed rape)Results differ

51 papers: 32 positive, 19 negative or no effect

18 papers in the same direction as this claim · 32 in the opposite direction

  1. positive
    Half and full herbicide doses often gave similar crop yield.

    Combining agronomic practices and herbicides improves weed management in wheat–canola rotations within zero-tillage production systems · 2005 · compared with 100% doses

    Opposite directionCited by this paper

  2. positive
    crop yield

    Evaluation of selected commercial oilseed rape cultivars for early vigour, weed suppression and yield in southern New South Wales · 2020

    Opposite directionCited by this paper

  3. positive
    Postemergence treatment increased rapeseed yields in 12 of 17 infested field trials.

    SELECTIVE CONTROL OF CANADA THISTLE IN RAPESEED WITH 3,6-DICHLOROPICOLINIC ACID · 1982

    Opposite direction

  4. positive
    At the lowest crop seeding rates, canola and barley yields increased up to one-half and three-quarters of the recommended herbicide rates.

    Crop Seeding Rate Influences the Performance of Variable Herbicide Rates in a Canola–Barley–Canola Rotation · 2004

    Opposite direction

  5. positive
    Weed control at the four-leaf stage was at least as profitable as at the two-leaf stage at both sites.

    Economics of integrated weed management in herbicide-resistant canola · 2006 · compared with the two-leaf stage

    Opposite direction

  6. positive
    Weed control improved rapeseed yields by 45.6%.

    Optimizing agronomic practices for closing rapeseed yield gaps under intensive cropping systems in China · 2020

    Opposite direction

  7. positive
    DPX-A7881 at 10–15 g did not reduce canola yields.

    CONTROL OF WILD MUSTARD IN CANOLA WITH POSTEMERGENCE HERBICIDES · 1989

    Opposite direction

  8. positive
    Most herbicide treatments improved canola yield over the nontreated check.

    Italian Ryegrass (Lolium perenne), Feral Cereal Rye (Secale cereale), and Volunteer Wheat (Triticum aestivum) Control in Winter Canola · 2011 · compared with nontreated check

    Opposite direction

42 papers more in this group

See all 51 papers →

density · yield · Brassica napus (oilseed rape)Positive and negative results

86 papers: 54 positive, 32 negative or no effect

31 papers in the same direction as this claim · 54 in the opposite direction

  1. positive
    Higher seed rates sometimes increased crop yield and never lowered it.

    Combining agronomic practices and herbicides improves weed management in wheat–canola rotations within zero-tillage production systems · 2005

    Opposite directionCited by this paper

  2. negative
    Seed yield and yield biomass (pods and straw weight) showed a declining trend with increasing row spacing.

    New oilseed rape (Brassica napusL.) varieties – canopy development, yield components, and plant density · 2014

    Same directionCited by this paper

  3. positive
    Wider row spacing at higher plant densities increased seeds per pod in rapeseed.

    The yield of mechanically harvested rapeseed (Brassica napus L.) can be increased by optimum plant density and row spacing · 2015

    Opposite direction

  4. positive
    Reduced plant density increased seeds per pod and seed weight in some instances.

    EFFECT OF PLANT DENSITY ON DEVELOPMENT AND YIELD OF RAPESEED AND ITS SIGNIFICANCE TO RECOVERY FROM HAIL INJURY · 1987

    Opposite direction

  5. positive
    A seeding rate of 32 to 65 seeds m-2 was sufficient to produce optimum canola yields.

    Determining the Feasibility of Early Seeding Canola in the Northern Great Plains · 2005

    Opposite direction

  6. positive
    Canola seed yield was generally increased when seeding rate was increased, with the largest increase from 2.8 to 5.8 kg ha-1.

    Seeding rate, fertilizer level and disease management effects on hybrid versus open pollinated canola (Brassica napus L.) · 2007

    Opposite direction

  7. positive
    The 1.5 and 3.0 kg ha −1 seeding rates gave the highest yields.

    EFFECT OF ROW SPACING AND SEEDING RATES ON SUMMER RAPE IN SOUTHERN MANITOBA · 1990

    Opposite direction

  8. positive
    Higher seeding rates increased canola emergence and stubble density.

    Seed size and seeding rate effects on canola emergence, development, yield and seed weight · 2014

    Opposite direction

77 papers more in this group

See all 86 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.