Intervention effectmodel-written summary

Mixed nitrogen significantly increased tuber dry weight relative to either nitrogen form alone.

A claim from Study of various NH4+/NO3−mixtures for enhancing growth of potatoes · 1993

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Mixed nitrogen significantly increased tuber dry weight relative to either nitrogen form alone.

Treatment
all mixed nitrogen treatmentse0
Outcome
tuberse0
Direction
increasede0
Comparator
single NH4+ or NO3- forme0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Dry weights of shoots, tubers, and whole plant at the harvest were increased significantly with all mixed nitrogen treatments as compared with single NH4+ or NO3- form.”

✓ located verbatim in the source · abstract, characters 680–848
t0

“potatoes”

✓ located verbatim in the source · title, characters 59–67

Title

Study of various NH4+/NO3−mixtures for enhancing growth of potatoes

Weixing Cao; Theodore W. Tibbitts Journal of Plant Nutrition 1993. doi:10.1080/01904169309364643

Other claims from this paper (11)

Record rev-5331cabda702f0a2ded978f090eb6fcea8da6f894f391119016ae64ad5d1f3ba · schema claims-v0.9 · position 2 in the model’s answer

nitrogen · yield · Solanum tuberosum (potato)Results differ

132 papers: 109 positive, 23 negative or no effect

108 papers in the same direction as this claim · 20 in the opposite direction · 3 reporting no difference from an alternative

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

123 papers more in this group

See all 132 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.