Intervention effectmodel-written summary

Compaction did not affect corn root production or distribution.

A claim from Effects of Soil Aeration and Compaction upon Yield, Nutrient Takeup and Variability in a Greenhouse Fertility Experiment1 · 1962

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Compaction did not affect corn root production or distribution.

Treatment
Compactione0
Outcome
root production and distributione0
Direction
did not affecte0

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

“Compaction lowered oxygen diffusion rates, increased bulk density, but did not affect root production and distribution.”

✓ located verbatim in the source · abstract, characters 253–372
e1

“corn”

✓ located verbatim in the source · abstract, characters 55–59

Title

Effects of Soil Aeration and Compaction upon Yield, Nutrient Takeup and Variability in a Greenhouse Fertility Experiment1

A. Van Diest Agronomy Journal 1962. doi:10.2134/agronj1962.00021962005400060014x

Other claims from this paper (4)

Record rev-1bbf1b374ddfc871cd226ef5631728a3776d31996d0721c3e45a7b623abb9bd1 · schema claims-v0.9 · position 5 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
    No-tillage was associated with higher corn yields.

    Influence of No‐tillage on Soil Moisture1 · 1971

    Opposite direction

  2. 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

  3. 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

  4. 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 direction

  5. 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

  6. positive
    Tillage increased corn yields.

    Long-term crop rotation and tillage effects on soil greenhouse gas emissions and crop production in Illinois, USA · 2018 · compared with no-tillage

    Opposite direction

  7. positive
    No-till gave a higher mean corn grain yield, 2.97 Mg ha −1, than moldboard plow-disk.

    Tillage Effects on Corn Production and Soil Physical Conditions · 1995 · compared with MP

    Opposite direction

  8. positive
    Four-year mean corn grain yield showed a 1000 kg/ha advantage for till planting on sandy loam in northern Indiana.

    Effect of Eight Tillage‐Planting Systems on Soil Temperature, Percent Stand, Plant Growth, and Yield of Corn on Five Indiana Soils1 · 1973

    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.