Intervention effectmodel-written summary

Preplant glyphosate increased soybean yield relative to paraquat or foliar herbicides.

A claim from Johnsongrass (Sorghum halepense) Control and Soil Moisture Relationships in No-Tillage, Doublecropped Soybeans (Glycine max) · 1987

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Preplant glyphosate increased soybean yield relative to paraquat or foliar herbicides.

Taxon
SoybeanGlycine maxe0
Treatment
preplant applications of glyphosatee0
Outcome
Soybean yieldse0
Direction
greatere0
Comparator
preplant applications of paraquat or foliar applications of sethoxydim, fluazifop, or glyphosatee0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Soybean yields and soil moisture were greater with preplant applications of glyphosate than with preplant applications of paraquat or foliar applications of sethoxydim, fluazifop, or glyphosate.”

✓ located verbatim in the source · abstract, characters 890–1084

Title

Johnsongrass (Sorghum halepense) Control and Soil Moisture Relationships in No-Tillage, Doublecropped Soybeans (Glycine max)

Michael S. Defelice; William W. Witt; James R. Martin Weed Science 1987. doi:10.1017/s0043174500026874

Other claims from this paper (5)

Record rev-bd5987ff23b37d647d495a5363737b86b89e8cc26526ac658980b60b9e9102a7 · schema claims-v0.9 · position 5 in the model’s answer

glyphosate · yield · Glycine max (soybean)Results differ

123 papers: 55 positive, 68 negative or no effect

54 papers in the same direction as this claim · 57 in the opposite direction · 11 reporting no difference from an alternative

  1. no effect
    Soybean yields did not differ between these application methods.

    Control of Johnsongrass (Sorghum halepense) and Volunteer Corn (Zea mays) in Soybeans (Glycine max) · 1981 · compared with glyphosate was applied conventionally

    Opposite directionCited by this paper

  2. positive
    Soybean yield with glyphosate was 6.0 times the nontreated check.

    Weed Control with Non-Selective Herbicides in Soybean (Glycine max) Stale Seedbed Culture · 1994 · compared with nontreated check

    Same directionCites this paper

  3. positive
    Tank mixtures of glyphosate at 1680 g/ha with metolachlor plus metribuzin plus chlorimuron gave higher soybean yield than glyphosate alone.

    Influence of Residual Herbicides on Rate of Paraquat and Glyphosate in Stale Seedbed Soybean (Glycine max) · 1993 · compared with glyphosate alone

    Same directionCites this paper

  4. no effect
    Glyphosate treatment of the glyphosate-tolerant soybean line caused no significant yield reduction at any location.

    Yield Evaluation of a Glyphosate‐Tolerant Soybean Line after Treatment with Glyphosate · 1995

    Opposite direction

  5. negative
    Glyphosate tended to decrease biomass and seed yields under limited soil water at Keiser, AR.

    Plant Growth and Nitrogenase Activity of Glyphosate‐Tolerant Soybean in Response to Foliar Glyphosate Applications · 2001

    Opposite direction

  6. negative
    Increasing glyphosate rates and later application reduced leaf area and shoot biomass production.

    Glyphosate effects on photosynthesis, nutrient accumulation, and nodulation in glyphosate‐resistant soybean · 2012

    Opposite direction

  7. no effect
    Soybean yields were not reduced by glyphosate, glufosinate, and nicosulfuron.

    Soybean (Glycine max) Response to Simulated Drift from Selected Sulfonylurea Herbicides, Dicamba, Glyphosate, and Glufosinate · 1999

    Opposite direction

  8. no effect
    Glyphosate had no significant effect on soybean yield

    Application of the CERES-Wheat Model for Within-Season Prediction of Winter Wheat Yield in the United Kingdom · 2003 · compared with without glyphosate application

    Opposite direction

114 papers more in this group

See all 123 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.