Intervention effectmodel-written summary

Corn yield did not differ between tillage systems.

A claim from Nitrogen availability as affected by ten years of cover crop and tillage systems in southern Brazil · 1998

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Corn yield did not differ between tillage systems.

Treatment
tillage systemse0
Outcome
corn yielde0
Direction
no differencee0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

“there was no difference in corn yield between tillage systems”

✓ located verbatim in the source · abstract, characters 670–731

Title

Nitrogen availability as affected by ten years of cover crop and tillage systems in southern Brazil

T.J.C Amado; S.B. Fernandez; J. Mielniczuk Journal of Soil and Water Conservation 1998. doi:10.1080/00224561.1998.12457231

Other claims from this paper (1)

Record rev-3cd4f102fd783fd5cae2e42e07ef7e7b921dbec15c386516353de5f46ed98777 · schema claims-v0.9 · position 2 in the model’s answer

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

1,099 papers: 812 positive, 287 negative or no effect

286 papers in the same direction as this claim · 812 in the opposite direction

  1. positive
    In 1983 strip or no tillage with soybean rotation raised corn grain yield by 12%.

    Influence of Tillage and Crop Rotation on Yields of Corn, Soybean, and Wheat · 1988

    Opposite directionCited by this paper

  2. positive
    In 1985, corn yields and N uptake were significantly higher under no-till than under conventional tillage.

    Tillage Effects on Availability of Nitrogen to Corn Following a Winter Green Manure Crop · 1988

    Opposite directionCited by this paper

  3. positive
    Across cover treatments, conventional tillage produced more grain yield than no tillage.

    Tillage Effects on Nitrogen Recovery by Corn from a Nitrogen‐15 Labeled Legume Cover Crop · 1989 · compared with NT

    Opposite directionCited by this paper

  4. no effect
    Tillage generally had insignificant effects on corn yield and N uptake.

    Residual Effects of Nitrogen Fertilization and Winter Cover Cropping on Nitrogen Availability · 1989

    Same directionCited by this paper

  5. positive
    No-tillage was associated with higher corn yields.

    Influence of No‐tillage on Soil Moisture1 · 1971

    Opposite direction

  6. positive
    CA improved maize grain yield, especially in two- or three-year rotations.

    ROTATION IN CONSERVATION AGRICULTURE SYSTEMS OF ZAMBIA: EFFECTS ON SOIL QUALITY AND WATER RELATIONS · 2010

    Opposite direction

  7. positive
    Subsoil tillage increased grain yield of spring maize by 12.8% on average compared with conventional soil treatment.

    Effect of subsoil tillage depth on nutrient accumulation, root distribution, and grain yield in spring maize · 2014 · compared with conventional soil treatment

    Opposite direction

  8. positive
    In Lemu, CA monocrop maize yielded 2.7 Mg ha −1 more than conventional tillage in 2009/10.

    Conservation agriculture systems for Malawian smallholder farmers: long-term effects on crop productivity, profitability and soil quality · 2012 · compared with conventional tillage

    Opposite direction

1,090 papers more in this group

See all 1,099 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.