Intervention effectmodel-written summary

Crystalline urea did not injure developing corn seedlings.

A claim from Influence of Biuret and Urea Fertilizers Containing Biuret on Corn Plant Growth and Development1 · 1960

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Crystalline urea did not injure developing corn seedlings.

Treatment
Crystalline ureae0
Outcome
injury to developing corn seedlingse0
Direction
did not causee0

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

“Crystalline urea did not cause this injury to developing corn seedlings.”

✓ located verbatim in the source · abstract, characters 220–292

Title

Influence of Biuret and Urea Fertilizers Containing Biuret on Corn Plant Growth and Development1

S. R. Wilkinson; A. J. Ohlrogge Agronomy Journal 1960. doi:10.2134/agronj1960.00021962005200100002x

Other claims from this paper (3)

Record rev-71fa0d4643f29daf4a0f9f33b168eec37f2484ffcf36b2882b08e2e53b3bd801 · schema claims-v0.9 · position 3 in the model’s answer

nitrogen · crop injury · Zea mays (maize)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this claim · 2 in the opposite direction

  1. positive
    Broadcast urea caused minimal crop injury and supplied nitrogen effectively.

    Rescue Nitrogen Applications for Corn · 2010

    Opposite direction

  2. positive
    Sidedressing corn with urea or ammonium nitrate reduced the apparent phytotoxicity of newsprint.

    Nutrient Status of Corn as Affected by Application of Newsprint and Nitrogen Source · 1995

    Opposite direction

  3. no effect
    Nitrogen fertility did not affect rootworm stand loss and injury.

    Cover Crop and Nitrogen Fertility Effects on Southern Corn Rootworm (Coleoptera: Chrysomelidae) Damage in Corn · 1994

    Same direction

See all 4 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.