Intervention effectmodel-written summary

Urea plus micronutrients slightly reduced juice acidity.

A claim from EFFECT OF UREA, SOME MICRONUTRIENTS AND TWO GROWTH REGULATORS FOLIAR SPRAYS ON VEGETATIVE GROWTH, YIELD AND FRUIT QUALITY OF WASHINGTON NAVEL ORANGE TREES · 2011

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Taxon: WASHINGTON NAVEL ORANGE TREESt0
Treatment: Urea and micronutrientse0
Outcome: juice aciditye0
Direction: reducede0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

Verbatim

e0
“Spraying of Urea and micronutrients slightly reducedjuice acidity”
✓ located verbatim in the source · abstract, characters 1980–2045

t0
“WASHINGTON NAVEL ORANGE TREES”
✓ located verbatim in the source · title, characters 125–154

Title

EFFECT OF UREA, SOME MICRONUTRIENTS AND TWO GROWTH REGULATORS FOLIAR SPRAYS ON VEGETATIVE GROWTH, YIELD AND FRUIT QUALITY OF WASHINGTON NAVEL ORANGE TREES

Ensherah A. H. Tayeh; Eman A. A. El-Khalek; Zeinab A. I; et al. Fayoum Journal of Agricultural Research and Development /Fayoum Journal of Agricultural Research and Development 2011. doi:10.21608/fjard.2011.195643

Other claims from this paper (17)

Intervention effect Urea with micronutrients produced high leaf area and shoot diameter.
Intervention effect Urea alone produced high leaf area and shoot diameter.
Intervention effect NAA produced high leaf area and shoot diameter.
Intervention effect Urea with micronutrients gave the highest shoot length.
Intervention effect GA3 gave high shoot length following urea with micronutrients.
Intervention effect Urea produced the highest leaf nitrogen content.
Intervention effect Micronutrients alone produced low leaf nitrogen content.
Intervention effect All spray treatments significantly increased fruit set versus control.
Intervention effect All spray treatments significantly reduced fruit drop versus control.
Intervention effect NAA reduced fruit drop more effectively than GA3.
Intervention effect Urea with micronutrients significantly increased fruit number and yield per tree.
Intervention effect NAA significantly increased fruit number and yield per tree.
Intervention effect Urea with micronutrients most effectively increased fruit and pulp weight.
Intervention effect GA3 also increased fruit and pulp weight.
Intervention effect Urea plus micronutrients increased soluble solids, total sugars, ascorbic acid and soluble-solids-to-acid ratio.
Intervention effect GA3 increased juice ascorbic acid content.
Intervention effect NAA increased juice ascorbic acid content.

Record rev-15fe2f9ee2b597752e2af4075af27346330728be603a21dc8ef441733a8250eb · schema claims-v0.9 · position 15 in the model’s answer

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

13 papers: 11 positive, 2 negative or no effect

10 papers in the same direction as this claim · 2 in the opposite direction

no effect
LBU treatments did not change juice contents, peel weight or acidity.
EARLY WINTER SPRAY OF LOW BIURET UREA IMPROVES MARKETABLE YIELD AND FRUIT QUALITY OF SWEET ORANGES · 2008
Opposite direction
negative
Increasing N rate decreased yield, number of fruits per plant and TSS content in fruit juice in the first crop.
Fruit yield and composition in orange trees cv. 'Lane Late' in response to nitrogen fertilization in Sandy Typic Hapludalf soil · 2017
Opposite direction
positive
Higher nitrogen rates increased orange yield of soluble solids.
N and K Fertilization Effects on Leaf Analysis, Tree Size, and Yield of Three Major Florida Orange Cultivars1 · 1975
Same direction
positive
T3 gave the highest fruit volume and TSS.
Effect of Integrated Nutrient Management on Growth, Yield and Fruit Quality of Sweet Orange (Citrus sinensis L.) cv. Mosambi · 2017
Same direction
positive
The highest TSS and TSS/TA were attained with 0.5 kg N/tree combined with 0.9 kg K/tree.
Effects of Combination Between Nitrogen and Potassium Fertilization on Yield and Quality of Valencia Orange Fruits · 2019
Same direction
positive
Urea, micronutrient, or combined sprays increased TSS, sugars and vitamin C contents of the fruit.
Effect of Urea, Some Micronutrients, and Growth Regulator Foliar Sprays on the Yield, Fruit Quality, and Some Vegetative Characters of Washington Navel Orange Trees: Fruit Physical and Chemical Properties · 1995
Same direction
positive
Fruit from urea phosphate-treated Valencia orange trees had the highest ratings for freedom from skin blemishes, sweetness and a pleasant degree of acidity, compared with potassium nitrate foliar sprays.
The Effect of Nutritional Treatments on Post-Harvest Quality and Flavour of Valencia Oranges · 1982 · compared with potassium nitrate foliar sprays
Same direction
positive
The combined treatment reduced fruit juice acidity, nitrate, and nitrite.
IMPACT OF ORGANIC AND INORGANIC NITROGEN FERTILIZERS ON WASHINGTON NAVEL ORANGE TREES. I. VEGETATIVE GROWTH, YIELD AND SOIL PROPERTIES · 2019
Same direction

4 papers more in this group

See all 13 papers →

micronutrient · quality: sugar starch · Citrus sinensis (sweet orange)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this claim

See all 3 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.

Other papers on the same question

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

micronutrient · quality: sugar starch · Citrus sinensis (sweet orange)Results agree