Intervention effectmodel-written summary

Micronutrient fertilization did not increase onion bulb color.

A claim from Quality and agronomic biofortification of onion as a function of fertilization with micronutrients · 2022

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Micronutrient fertilization did not increase onion bulb color.

Taxon
onionAllium cepat0
Treatment
Fertilization with micronutrientse0
Outcome
bulb colore0
Direction
did not increasee0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValueQualifier

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Fertilization with micronutrients did not increase soluble solids, titratable acidity, SS/TA ratio and bulb color.”

✓ located verbatim in the source · abstract, characters 948–1062
t0

“onion”

✓ located verbatim in the source · title, characters 42–47

Title

Quality and agronomic biofortification of onion as a function of fertilization with micronutrients

Nubia Marisa Ferreira Bertino; Leilson Costa Grangeiro; Arthur Bernardes CecílioFilho; et al. Journal of Plant Nutrition 2022. doi:10.1080/01904167.2022.2027971

Other claims from this paper (4)

Record rev-adecf84306ebc46d2696760a18838c873f35d5985c4121f1ccb0190ce4de8b49 · schema claims-v0.9 · position 4 in the model’s answer

micronutrient · quality: postharvest · Allium cepa (onion)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

2 in the opposite direction

  1. positive
    Humic acids with micronutrients increased percent marketable onion bulbs after 4.5 months of controlled atmosphere storage compared with the untreated check.

    Evaluation of Growth Stimulants on Short-day Onions · 2001 · compared with untreated check

    Opposite direction

  2. positive
    Humic acid, seaweed extracts and micronutrients increased marketable onions after storage in one year.

    Effect of biostimulants +/- micronutrients, hydroxy-propanoic acid, cytokinins and humic acid as a transplant dip and plant spray on onions. · 2008 · compared with untreated check

    Opposite direction

See all 3 papers →

fertilization · quality: postharvest · Allium cepa (onion)Positive and negative results

69 papers: 53 positive, 16 negative or no effect

15 papers in the same direction as this claim · 53 in the opposite direction

  1. positive
    Compost tea sprays increased marketable onion yield.

    SUPPRESSION OF EARLY BLIGHT ON TOMATO AND PURPLE BLIGHT ON ONION BY FOLIAR SPRAYS OF AERATED AND NON-AERATED COMPOST TEAS · 2007

    Opposite direction

  2. positive
    Riviera F1 marketable yield increased 27% with 50 kg·ha−1 N fertigation.

    Effect of Drip Irrigation and Fertilization Timing and Rate on Yield of Onion · 2003

    Opposite direction

  3. positive
    The highest total bulb yield was 47.69 t ha-1 with 92 kg ha-1 N and 242 kg ha-1 NPS.

    Improving onion productivity through optimum and economical use of soil macronutrients in Central Rift Valley of Ethiopia · 2022

    Opposite direction

  4. positive
    Increasing nitrogen to 214.2 kg N/ha significantly increased growth, yield, culls, bulb weight and storage weight loss.

    ONION YIELD AS AFFECTED BY FOLIAR APPLICATION WITH AMINO AND HUMIC ACIDS UNDER NITROGEN FERTILIZER LEVELS · 2013

    Opposite direction

  5. positive
    Total and marketable yields and individual bulb weight increased quadratically with organic fertilization rate in sweet onion.

    Sweet Onion (Allium cepa L.) as Influenced by Organic Fertilization Rate: 2. Bulb Yield and Quality before and after Storage · 2018

    Opposite direction

  6. positive
    Maximum marketable yield was 62.7 Mg·ha−1 at 40 Mg·ha−1 CMC.

    Evaluation of Composted Cattle Manure Rate on Bulb Onion Grown with Reduced Rates of Chemical Fertilizer · 2012

    Opposite direction

  7. positive
    At 120% ETc irrigation with 105 kg N ha-1, marketable bulb yield was 11.64 t ha-1, among the maximum yields.

    Effects of irrigation and nitrogen levels on bulb yield, nitrogen uptake and water use efficiency of shallot (Allium cepa var. ascalonicum Baker) · 2013

    Opposite direction

  8. positive
    Marketable yield of onion was highest (20.8 ha-1) at 105:119.6:22 kg ha-1 N:P2O5:S in the Adama Red variety.

    Optimum rate of NPS fertilizer for economical production of irrigated onion (Allium cepa L) in Dembyia District of Amhara Region, Ethiopia · 2019

    Opposite direction

60 papers more in this group

See all 69 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.