Intervention effectmodel-written summary

Tillage and herbicide spraying reduced weed number by 96.8% versus control.

A claim from The development of harmful organisms in corn crops depending on tillage and protection system · 2023

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tillage and herbicide spraying reduced weed number by 96.8% versus control.

Treatment
tillage and spraying with herbicidese0
Interactor
weedse0weed
Outcome
number of weedse0
Direction
lowere0
Value
96.8%e0
Comparator
the controle0

Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingQualifier

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

Zea mays subsp. mays
Zea mays subsp. mays · TaxonDominicus Johannes Bergsma · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Under tillage and spraying with herbicides, the number of weeds was 96.8% lower compared to the control.”

✓ located verbatim in the source · abstract, characters 1306–1410
t0

“corn crops”

✓ located verbatim in the source · title, characters 40–50

Title

The development of harmful organisms in corn crops depending on tillage and protection system

O. Snizhok; T. Shevchenko Interdepartmental Thematic Scientific Collection of Phytosanitary safety 2023. doi:10.36495/1606-9773.2022.68.156-167

Other claims from this paper (11)

Record rev-a583fea8d7cd102b95eede85a3b6507321bdfe052cf4bd92be080ef5b88d1c54 · schema claims-v0.9 · position 3 in the model’s answer

application · weed · Zea mays (maize)Positive and negative results

21 papers: 18 positive, 3 negative or no effect

17 papers in the same direction as this claim · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
    Foliar enrichment enhanced the dry weight of weeds growing with maize.

    Effect of the foliar enrichment and herbicides on maize and associated weeds irrigated with drainage water · 2017 · compared with untreated treatment

    Opposite direction

  2. negative
    Weed height and weight were higher in the manually cleared, once sprayed plot than others.

    Studies of Maize (zea mays) Production under Different Cultivation Methods as a Practicum for Senior Secondary School Students · 2015 · compared with all others

    Opposite direction

  3. no effect
    In-row weed cover was statistically indistinguishable across sprayer treatments and weed-free checks in both years.

    Practical Changes to Single-Boom Sprayers for Zone Herbicide Application · 2006 · compared with weed-free checks

    No difference from an alternative

  4. positive
    Sorgaab sprays controlled 18–50% of weeds.

    Weed Control in Maize (Zea maysL.) Through Sorghum Allelopathy · 2004

    Same direction

  5. positive
    Half-rate band spraying with mechanical control reduced weeds by 83–87%.

    Effects of pre- and post-emergence weed control on weed population and maize yield in different tillage systems · 2003

    Same direction

  6. positive
    The four foliar herbicide treatments equally controlled established weeds and maintained high corn yield with triazines.

    Weed Control in Corn Planted into Untilled Winter Wheat Stubble1 · 1982

    Same direction

  7. positive
    July plowing and September spraying gave the best weed control before corn.

    Management of Land Diverted from Crop Production. I. Perennial Forages1 · 1968

    Same direction

  8. positive
    Contact herbicide spraying before corn planting prevented weed growth.

    Subterranean Clover Management to Enhance Reseeding in Silage Corn Production. · 2001

    Same direction

12 papers more in this group

See all 21 papers →

tillage · weed · Zea mays (maize)Positive and negative results

111 papers: 65 positive, 46 negative or no effect

64 papers in the same direction as this claim · 41 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
    Reduced tillage produced larger, more diverse perennial weed populations than moldboard plowing.

    Perennial Weed Populations After 14 Years of Variable Tillage and Cropping Practices · 1994 · compared with moldboard plow system

    Opposite direction

  2. negative
    Grass weed yield was significantly higher under no-till.

    Weed Species Distribution as Influenced by Tillage and Herbicides · 1985

    Opposite direction

  3. negative
    Zero tillage gave maximum fresh weed biomass of 183 kg/ha compared with conventional tillage.

    Impact of tillage, plant population and mulches on biological yield of maize. · 2009 · compared with conventional tillage

    Opposite direction

  4. negative
    Weed emergence at 2 weeks after planting in 2000 was greater in conventional tillage than in no-tillage and strip tillage.

    Weed Management in Strip Tillage Corn · 2004 · compared with no‐tillage and strip tillage

    Opposite direction

  5. negative
    Weed densities were 6% to 51% higher under conventional tillage than under the two conservation agriculture options.

    Mulching and Fertilization Effects on Weed Dynamics under Conservation Agriculture-Based Maize Cropping in Zimbabwe · 2015 · compared with two conservation agriculture (CA) options

    Opposite direction

  6. negative
    Weed density and diversity were significantly higher under NT than under RT and DT

    Effect of tillage on weeds and economics of fodder maize production. · 2007 · compared with RT and DT

    Opposite direction

  7. negative
    Midseason weed proportion of biomass was greater under HF and ORG with CP and NT.

    Low‐Input Management and Mature Conservation Tillage: Agronomic Potential in a Cool, Humid Climate · 2013

    Opposite direction

  8. negative
    Minimum tillage increased weed growth in the second year of maize monocropping.

    Weed growth and crop yield responses to tillage and mulching under different crop rotation sequences in semi‐arid conditions · 2017

    Opposite direction

102 papers more in this group

See all 111 papers →

herbicide · weed · Zea mays (maize)Positive and negative results

406 papers: 360 positive, 46 negative or no effect

359 papers in the same direction as this claim · 36 in the opposite direction · 10 reporting no difference from an alternative

  1. positive
    Soil herbicide Adengo 465 (0.5 l/ha) at sowing reduced weeds in maize by 92% compared with the control experiment without chemical weed control.

    CONTROL OF QUANTITY OF WEEDS IN SOWING OF CORN · 2019 · compared with control experiment

    Same directionCited by this paper

  2. negative
    GMHT management increased weed biomass in maize.

    Responses of plants and invertebrate trophic groups to contrasting herbicide regimes in the Farm Scale Evaluations of genetically modified herbicide–tolerant crops · 2003 · compared with conventional treatments

    Opposite direction

  3. negative
    Without herbicide, weed control was poor regardless of row spacing or population.

    Influence of Narrow Row/High Population Corn (Zea mays) on Weed Control and Light Transmittance · 1995

    Opposite direction

  4. no effect
    Weed diversity was little affected by treatment in all three crops except immediately after herbicide use.

    Weeds in fields with contrasting conventional and genetically modified herbicide–tolerant crops. I. Effects on abundance and diversity · 2003

    Opposite direction

  5. no effect
    Weed cover and grain yields in corn after banded herbicide plus cultivation were equivalent to broadcast herbicide with or without cultivation.

    Integrating Mechanical and Chemical Weed Management in Corn (Zea mays) · 1994 · compared with broadcast herbicide with or without cultivation

    Opposite direction

  6. negative
    Combining hairy vetch and preemergence herbicides provided 24 to 61% grass control compared with hairy vetch alone.

    Influence of hairy vetch residue on atrazine and metolachlor soil solution concentration and weed emergence · 2003 · compared with hairy vetch alone

    Opposite direction

  7. no effect
    Prior-year weed treatments had little effect on next-year corn weed control and yield.

    Field evaluation of a bioeconomic model for weed management in soybean (Glycine max) · 1997

    Opposite direction

  8. negative
    Compared with broadcast applications, herbicides applied in a band resulted in increased weed populations at 8% of the locations.

    On-Farm Evaluation of Mechanical and Chemical Weed Management Practices in Corn (Zea mays) · 1993 · compared with broadcast applications

    Opposite direction

397 papers more in this group

See all 406 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.