Intervention effectmodel-written summary

Corn yields did not differ by tillage or rotation in 1982 and 1984.

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

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Corn yields did not differ by tillage or rotation in 1982 and 1984.

Treatment
tillage or crop rotatione0
Outcome
corn yield differencese0
Direction
Noe0
Qualifier
1982 and 1984e0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue

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

“No corn yield differences were observed in 1982 and 1984 due to tillage or crop rotation”

✓ located verbatim in the source · abstract, characters 687–775

Title

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

J. H. Edwards; D. L. Thurlow; J. T. Eason Agronomy Journal 1988. doi:10.2134/agronj1988.00021962008000010018x

Other claims from this paper (7)

Record rev-dae70d1e5ccc25ef982b9ea85e429a6e125504e8619ae14e2449a27732dd5561 · schema claims-v0.9 · position 2 in the model’s answer

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

322 papers: 254 positive, 68 negative or no effect

68 papers in the same direction as this claim · 253 in the opposite direction

  1. positive
    Corn rotated annually with soybean yielded 15% more than continuously grown corn.

    Corn and Soybean Response to Rotation Sequence, Row Spacing, and Tillage System · 2003 · compared with continuously grown corn

    Opposite directionCites this paper

  2. positive
    Corn rotated annually with soybean yielded 12% more than continuous corn.

    Influence of Rotation Sequence on the Optimum Corn and Soybean Plant Population · 2002 · compared with continuous grown corn

    Opposite directionCites this paper

  3. positive
    Yearly corn soybean rotation raised 2014 corn grain yield 15 to 18% versus continuous cropping.

    Corn, Soybean, and Wheat Yield Response to Crop Rotation, Nitrogen Rates, and Foliar Fungicide Application · 2017 · compared with continuous cropping

    Opposite directionCites this paper

  4. positive
    Crop rotations increased corn yield except in 2001.

    Long‐Term Tillage and Poultry Litter Impacts on Soybean and Corn Grain Yield · 2011

    Opposite directionCites this paper

  5. positive
    Conventional tillage corn yielded 8% more in rotation than monoculture.

    Tillage and crop rotation effects on the yield of corn, soybean and wheat in eastern Canada · 2017 · compared with monoculture

    Opposite directionCites this paper

  6. positive
    With irrigation, corn following soybean exceeded continuous corn in only one of three years.

    Cropping Systems for Clay Soil: Irrigated and Nonirrigated Soybean Rotated with Corn and Sorghum · 1992 · compared with CC

    Opposite directionCites this paper

  7. negative
    Across rainfed fields, continuous corn showed an average yield penalty of 4.3%.

    Continuous Corn and Soybean Yield Penalties across Hundreds of Thousands of Fields · 2017

    Same directionCites this paper

  8. negative
    Corn yields declined with consecutive years of monocropping.

    Corn/Soybean Rotation Effect as Influenced by Tillage, Nitrogen, and Hybrid/Cultivar · 1991

    Same directionCites this paper

313 papers more in this group

See all 322 papers →

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

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

287 papers in the same direction as this claim · 811 in the opposite direction

  1. positive
    Ungrazed-cover corn grain yield was 25% greater with no tillage than conventional tillage.

    Crop and cattle responses to tillage systems for integrated crop–livestock production in the Southern Piedmont, USA · 2007 · compared with CT

    Opposite directionCites this paper

  2. positive
    Conventional tillage generally gave greater corn yield in the listed years.

    Long‐Term Tillage and Poultry Litter Impacts on Soybean and Corn Grain Yield · 2011

    Opposite directionCites this paper

  3. positive
    Conventional tillage corn yield was about 20% higher than no till corn, without statistical significance.

    Tillage and crop rotation effects on the yield of corn, soybean and wheat in eastern Canada · 2017 · compared with NT

    Opposite directionCites this paper

  4. positive
    No-till improved long-term crop productivity of sloping soil compared with moldboard plow.

    Economics of Conservation Tillage Systems for CRP Land in Southern Illinois · 1997 · compared with MP

    Opposite directionCites this paper

  5. positive
    In 1989 corn grain yield was greatest under moldboard plowing (10,500 kg/ha).

    Tillage effects on growth and yields of corn on Grantsburg soil · 1994 · compared with NT

    Opposite directionCites this paper

  6. positive
    Strip-till increased corn yield 0.8 Mg ha –1 (5.7%) over no-till.

    Strip‐till, other management strategies, and their interactive effects on corn grain and soybean seed yield · 2020 · compared with no‐till

    Opposite directionCites this paper

  7. negative
    No-tillage corn grain yield was 5% lower than under conventional tillage.

    Corn and Soybean Response to Rotation Sequence, Row Spacing, and Tillage System · 2003 · compared with conventional tillage system

    Same directionCites this paper

  8. no effect
    Average no-till yields of corn were similar to conventional tillage yields.

    Corn/Soybean Rotation Effect as Influenced by Tillage, Nitrogen, and Hybrid/Cultivar · 1991 · compared with CT

    Same directionCites this paper

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.