Intervention effectmodel-written summary

first class and secondary class tobacco’s proportion declined above 180 kg/hm2 nitrogen fertilizer and N:K ratio 3.

A claim from Effect of Different Nitrogen Application Rate and Nitrogen, Phosphorous and Potassium Ratio on the Yield and Quality of Flue-cured Tobacco · 2011

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

first class and secondary class tobacco’s proportion declined above 180 kg/hm2 nitrogen fertilizer and N:K ratio 3.

Treatment
nitrogen fertilizer is higher than 180 kg/hm2,and the ratio of nitrogen and potassium is higher than 3e0
Outcome
first class and secondary class tobacco’s proportione0
Direction
declinede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“when the nitrogen fertilizer is higher than 180 kg/hm2,and the ratio of nitrogen and potassium is higher than 3,the yield of the flue-cured tobacco,first class and secondary class tobacco’s proportion,and the coordination of intrinsic chemical composition all declined.”

✓ located verbatim in the source · abstract, characters 734–1003

Title

Effect of Different Nitrogen Application Rate and Nitrogen, Phosphorous and Potassium Ratio on the Yield and Quality of Flue-cured Tobacco

Xiaorong Liu 2011

Other claims from this paper (10)

Record rev-32bb393d44d10d57eb0b37609b650dd477d635a054cab71dc6b8afe240fbe22e · schema claims-v0.9 · position 10 in the model’s answer

fertilization · molecular: metabolites · Nicotiana tabacum (tobacco)Results differ

81 papers: 72 positive, 9 negative or no effect

8 papers in the same direction as this claim · 72 in the opposite direction

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

72 papers more in this group

See all 81 papers →

potassium · molecular: metabolites · Nicotiana tabacum (tobacco)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

7 in the opposite direction

  1. positive
  2. positive
  3. positive
  4. positive
  5. positive
  6. positive
  7. positive
See all 8 papers →

nitrogen · molecular: metabolites · Nicotiana tabacum (tobacco)Positive and negative results

45 papers: 35 positive, 10 negative or no effect

9 papers in the same direction as this claim · 35 in the opposite direction

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

36 papers more in this group

See all 45 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.