Intervention effectmodel-written summary

Annual application of 1200 g N /tree in three batches gave the best fruit quality.

A claim from effect of soil nitrogen fertilizer on fruit set, the yield and fruit quality of Valencia orang trees. · 2022

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Annual application of 1200 g N /tree in three batches gave the best fruit quality.

Taxon
Valencia orange treesCitrus sinensise1
Treatment
1200 g N /tree annually at three equal batchese0
Outcome
fruit qualitye0
Direction
beste0
Setting
Mallawy districte1

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier

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

Citrus sinensis
Citrus sinensis · TaxonEllen Levy Finch ( Elf ) · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The best results concerning yield and fruit quality were presented by adding 1200 g N /tree annually at three equal batches”

✓ located verbatim in the source · abstract, characters 780–903
e1

“Valencia orange trees cultivated on clay soil located at Mallawy district”

✓ located verbatim in the source · abstract, characters 74–147

Title

effect of soil nitrogen fertilizer on fruit set, the yield and fruit quality of Valencia orang trees.

Sahar Abdelrahman; Abd El-Hameed Wassel; Faroukh Abdelaziz Minia Journal of Agricultural Research and Development 2022. doi:10.21608/mjard.2022.124410.1005

Other claims from this paper (4)

Record rev-3f360be8f1d7fa5f1c463aadd36c197253e2a23c7574d3574d4086dae79e1de9 · schema claims-v0.9 · position 5 in the model’s answer

nitrogen · quality: grain · Citrus sinensis (sweet orange)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this claim · 2 in the opposite direction

  1. no effect
    Different organic fertilizer types with the same nitrogen amount did not change important orange fruit quality parameters.

    Influence of Different Organic Fertilizers on Quality Parameters and the δ15N, δ13C, δ2H, δ34S, and δ18O Values of Orange Fruit (Citrus sinensis L. Osbeck) · 2010

    Opposite direction

  2. no effect
    Yield, fruit quality and leaf mineral composition of Valencia orange were essentially unchanged by widely different schedules of applying N and K.

    Effects of Time of Application of N and K and of N Rate on Performance of Nucellar ‘Valencia’ Orange Trees on Two Stocks1 · 1971

    Opposite direction

  3. positive
    Foliar Mo application combined with the appropriate nitrogen source enhanced fruit quality and juice yield.

    Foliar application of molybdenum and soil nitrogen sources in the physiology, nutrition, and fruit quality of “Pêra” sweet oranges · 2025

    Same direction

See all 4 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.