Intervention effectmodel-written summary

Phosphorus fertilizer had no effect on crop productivity.

A claim from Productive and Environmental Consequences of Sixteen Years of Unbalanced Fertilization with Nitrogen and Phosphorus—Trials in Poland with Oilseed Rape, Wheat, Maize and Barley · 2020

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Phosphorus fertilizer had no effect on crop productivity.

Taxon
Oilseed Rape, Wheat, Maize and BarleyBrassica napusHordeum vulgareTriticum aestivumZea mayst0
Treatment
P fertilizere0
Outcome
crop productivitye0
Direction
no effecte0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Brassica napus
Brassica napus · TaxonDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗
Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗
Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“P fertilizer had no effect on crop N use efficiency (NUE) nor crop productivity”

✓ located verbatim in the source · abstract, characters 732–811
t0

“Oilseed Rape, Wheat, Maize and Barley”

✓ located verbatim in the source · title, characters 138–175

Title

Productive and Environmental Consequences of Sixteen Years of Unbalanced Fertilization with Nitrogen and Phosphorus—Trials in Poland with Oilseed Rape, Wheat, Maize and Barley

Agnieszka Rutkowska; Piotr Skowron Agronomy 2020. doi:10.3390/agronomy10111747

Other claims from this paper (4)

Record rev-0f16406e2bf5ed7dee13deacafdfd366b1becd616125f0dffed97a49c80be01c · schema claims-v0.9 · position 2 in the model’s answer

fertilization · yield · Brassica napus (oilseed rape)Positive and negative results

378 papers: 337 positive, 41 negative or no effect

40 papers in the same direction as this claim · 337 in the opposite direction

  1. negative
  2. positive
  3. positive
  4. positive
  5. positive
  6. positive
  7. positive
  8. positive

369 papers more in this group

See all 378 papers →

fertilization · yield · Hordeum vulgare (barley)Positive and negative results

550 papers: 473 positive, 77 negative or no effect

76 papers in the same direction as this claim · 473 in the opposite direction

  1. positive
  2. positive
  3. positive
  4. positive
  5. positive
  6. positive
  7. positive
  8. positive

541 papers more in this group

See all 550 papers →

fertilization · yield · Triticum aestivum (wheat)Positive and negative results

3,438 papers: 3,115 positive, 323 negative or no effect

322 papers in the same direction as this claim · 3,115 in the opposite direction

  1. positive
  2. positive
  3. positive
  4. positive
  5. positive
  6. positive
  7. positive
  8. positive

3,429 papers more in this group

See all 3,438 papers →

3 of 4 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.