Intervention effectmodel-written summary

At 168 or 224 kg N/ha, sulfur fertilization significantly increased corn grain nitrogen content.

A claim from Yield, N, and S Content of Corn as Affected by N and S Fertilization on Coastal Plain Soils1 · 1977

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

At 168 or 224 kg N/ha, sulfur fertilization significantly increased corn grain nitrogen content.

Treatment
S fertilizatione0
Outcome
N content of corn graine0
Direction
increasede0
Qualifier
168 or 224 kg N/hae0

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

“With 168 or 224 kg N/ha, S fertilization significantly increased grain yields and N content of corn grain”

✓ located verbatim in the source · abstract, characters 838–943

Title

Yield, N, and S Content of Corn as Affected by N and S Fertilization on Coastal Plain Soils1

Armando Rabuffetti; Eugene J. Kamprath Agronomy Journal 1977. doi:10.2134/agronj1977.00021962006900050013x

Other claims from this paper (5)

Record rev-c32e22d0fdbc607f98dc5f61a00e852a2712d4070cb00d44b9206ae8d8d4532d · schema claims-v0.9 · position 6 in the model’s answer

sulfur atom · nutrient: content · Zea mays (maize)Results differ

37 papers: 33 positive, 4 negative or no effect

32 papers in the same direction as this claim · 3 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative
  4. no effect
  5. no effect
  6. positive
  7. positive
  8. positive

28 papers more in this group

See all 37 papers →

fertilization · nutrient: content · Zea mays (maize)Positive and negative results

1,164 papers: 1,026 positive, 138 negative or no effect

1,025 papers in the same direction as this claim · 127 in the opposite direction · 11 reporting no difference from an alternative

  1. positive
  2. positive
  3. negative
  4. negative
  5. negative
  6. no effect
  7. no effect
  8. negative

1,155 papers more in this group

See all 1,164 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.