Intervention effectmodel-written summary

Applied nitrogen tended to reduce spring and summer shoot leaf abscission the following May.

A claim from Seasonal Variation in Leaf Chlorophyll Content of Newhall Navel Orange Seedlings Applied with Different Levels of Nitrogen · 2012

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Applied nitrogen tended to reduce spring and summer shoot leaf abscission the following May.

Taxon
Newhall Navel Oranget0
Organ / stage
spring and summer shootse0
Treatment
Ne0
Outcome
leaf abscission ratese0
Direction
decreasee0

Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

Verbatim

e0

“leaf abscission rates of spring and summer shoots on trees applied with N tended to decrease in the following May”

✓ located verbatim in the source · abstract, characters 392–505
t0

“Newhall Navel Orange”

✓ located verbatim in the source · title, characters 50–70

Title

Seasonal Variation in Leaf Chlorophyll Content of Newhall Navel Orange Seedlings Applied with Different Levels of Nitrogen

Yi Huang Zhongguo ganju 2012

Other claims from this paper (6)

Record rev-c63ef040ac93afe2c54d61daf98aedeba2679af41821029db2129c2643bd55a6 · schema claims-v0.9 · position 1 in the model’s answer

nitrogen · yield · Citrus sinensis (sweet orange)Results differ

48 papers: 39 positive, 9 negative or no effect

38 papers in the same direction as this claim · 8 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
    Soil urea reduced fruit size.

    Aggregate Effects of Nutrients and Gibberellic Acid on ‘Valencia’ Orange Crop Value1 · 1973

    Opposite direction

  2. no effect
    Urea did not alter the ringing effect on orange yield.

    Effects of Ringing on Yields of Low-Bearing Orange Trees(Citrus Sinensis(L.) Osbeck) · 1971

    Opposite direction

  3. negative
    N application significantly decreased fruit weight and diameter of sweet orange.

    Effect of N and Zn on ^|^lsquo;Hamlin^|^rsquo; sweet orange (Citrus sinensis Osbeck) · 1981

    Opposite direction

  4. no effect
    Increased nitrogen did not reduce salinity harm to fruit production.

    Quantum efficiency of photosystem II and production of orange under salt stress and nitrogen fertilization · 2016 · compared with 100 and 200% of recommendation

    Opposite direction

  5. negative
    When N and P were applied together without K, a severe antagonism resulted, with a large yield decrease.

    Nitrogen, phosphorus, potassium interactions on valencia orange yields · 1990

    Opposite direction

  6. negative
    A nitrogen level of 224 kg N ha−1 reduced fruit weight compared with other N levels.

    Comparative Response of Huanglongbing-Affected Sweet Orange Trees to Nitrogen and Zinc Fertilization under Microsprinkler Irrigation · 2020 · compared with other N levels

    Opposite direction

  7. no effect
    Urea treatment did not significantly change the average yield of sweet orange trees compared with control.

    Response of Sweet Orange (Citrus Sinensis Osbeck.) Plants To Zinc, Urea and Dbcp. · 1974 · compared with control

    Opposite direction

  8. negative
    Orange under foliar urea produced significantly less fruit than soil nitrogen in one of three years.

    Yield of Citrus Trees with Foliar Urea as the Only N Source · 2006 · compared with soil N treatment

    Opposite direction

39 papers more in this group

See all 48 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.