Intervention effectmodel-written summary

T2 produced maximum polar diameter, 5.17.

A claim from Response of Onion (Allium cepa L.) to Foliar Application of Nano Urea and Urea · 2023

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

T2 produced maximum polar diameter, 5.17.

Taxon
OnionAllium cepat0
Treatment
treatment T2 with 25% reduced nitrogen application plus foliar spray of 0.4% nano urea on 30 and 60 DATe0
Outcome
polar diametere0
Direction
maximume0
Value
5.17e0
Comparator
other treatmentse0
Setting
Jabalpure1

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleQualifier

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

“Among all the treatments, treatment T2 with 25% reduced nitrogen application plus foliar spray of 0.4% nano urea on 30 and 60 DAT recorded maximum plant height on 90 DAT (57.82 cm),number of leaves (9.13), equatorial diameter (5.51 cm), polar diameter (5.17), average bulb weight (69.56 g), bulb yield (336.40 kg) than other treatments.”

✓ located verbatim in the source · abstract, characters 1004–1340
t0

“Onion”

✓ located verbatim in the source · title, characters 12–17
e1

“Jabalpur”

✓ located verbatim in the source · abstract, characters 112–120

Title

Response of Onion (Allium cepa L.) to Foliar Application of Nano Urea and Urea

Priyanka Mishra Dubey; Jagrati Upadhyay; Sayan Chowdhury; et al. International Journal of Environment and Climate Change 2023. doi:10.9734/ijecc/2023/v13i113339

Other claims from this paper (5)

Record rev-921e5bcebcad152e365af1238fd23f63c7678c55b76ca6eb7c823323a7623da0 · schema claims-v0.9 · position 4 in the model’s answer

nitrogen · growth · Allium cepa (onion)Results differ

81 papers: 71 positive, 10 negative or no effect

70 papers in the same direction as this claim · 9 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
    Nitrogen source and rate had only minor effects on leaf area and storage potential.

    Nitrogen Use Efficiency and Onion Yield Increased with a Polymer-coated Nitrogen Source · 2002

    Opposite direction

  2. negative
    Increased nitrogen slightly delayed bulb development.

    The phenology of onion bulb development at different sites and its relevance to incomplete bulbing (‘thick-necking’) · 1987

    Opposite direction

  3. no effect
    The nitrogen by spacing interaction did not significantly affect stem diameter.

    Effect of Spacing and Nitrogen Fertilizer on the Yield and Yield Component of Shallot (Allium ascalonium L.) · 2015

    Opposite direction

  4. no effect
    Onion growth until the 3–4 leaf stage did not appear to be influenced by the N rate before sowing.

    Effects of split application of nitrogen on yield and nitrogen recovery of spring-sown onions and on residual nitrogen · 1998

    Opposite direction

  5. no effect
    Nitrogen source did not have significant effects on shallot plant height or leaf number.

    Season, and Nitrogen Source and Rate Affect Development and Yield of Shallot · 2002

    Opposite direction

  6. negative
    Higher N dose decreased bulb dry matter.

    THE INFLUENCE OF N SOURCES AND FERTILIZATION DOSES ON DRY ONION (ALLIUM CEPA L.) YIELD AND BULBS SHELF LIFE · 2009

    Opposite direction

  7. negative
    Direct seeding and high nitrogen gave the greatest nutsedge height, 92.33 cm.

    Evaluating the Effect of Onion (Allium cepa L.) Sowing Methods on Growth Characteristics of Purple Nutsedge (Cyperus rotundus L.) under Different Levels of Nitrogen Fertilizer · 2017

    Opposite direction

  8. no effect
    Nitrogen fertilizer did not significantly affect leaf number or canopy cover.

    Applied Nitrogen Fertilization and Irrigation on Improving Shallot (Allium ascolanicum L.) Growth and Yield on Dry Land in Mesuji, Lampung Province, Indonesia · 2023

    Opposite direction

72 papers more in this group

See all 81 papers →

nanoparticle · growth · Allium cepa (onion)Positive and negative results

30 papers: 28 positive, 2 negative or no effect

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

  1. no effect
    Nanoparticles did not affect seed germination.

    Biogenic α-Fe2O3 Nanoparticles Enhance the Biological Activity of Trichoderma against the Plant Pathogen Sclerotinia sclerotiorum · 2021

    Opposite direction

  2. negative
    The nanoformulations prevented root development of Allium cepa at all tested concentrations.

    Silver nanoparticles synthetized by combustion reaction and toxicity studies by changes in radicular growth of Allium cepa / Nanopartículas de prata sintetizadas por reação de combustão e estudos de toxicidade por alterações no crescimento radicular de Allium cepa · 2022

    Opposite direction

  3. positive
    Nanoparticle and nanoemulsion priming enhanced onion seed germination and emergence in greenhouse and field studies compared with unprimed and hydroprimed seeds.

    Green-Synthesized Nanoparticles Enhanced Seedling Growth, Yield, and Quality of Onion (Allium cepa L.) · 2019 · compared with unprimed and hydroprimed seeds

    Same direction

  4. positive
    Nanomaterial seed priming increased onion seed germination and seedling emergence.

    1H Nuclear Magnetic Resonance and Liquid Chromatography Coupled with Mass Spectrometry-Based Metabolomics Reveal Enhancement of Growth-Promoting Metabolites in Onion Seedlings Treated with Green-Synthesized Nanomaterials · 2020

    Same direction

  5. positive
    ZnO/MWCNT nanocomposites at 15 μg/mL gave the best onion seedling growth.

    Zinc-Supported Multiwalled Carbon Nanotube Nanocomposite: A Synergism to Micronutrient Release and a Smart Distributor To Promote the Growth of Onion Seeds in Arid Conditions · 2018

    Same direction

  6. positive
    CuO NP treatment enhanced plant height, number of leaves, fresh and dry weight of onion compared with Cu sulfate and chelates.

    Are Copper Nanoparticles Toxic to All Plants? A Case Study on Onion (Allium cepa L.) · 2021 · compared with Cu sulfate and chelates

    Same direction

  7. positive
    Foliar wsCNP and sulfur treatments significantly increased onion vegetative growth.

    Effect of Carbon Nanoparticles in Biochar and Sulphur as a Foliar Spray on Onion Plants: A New Orientation · 2022 · compared with untreated plants

    Same direction

  8. positive
    Nano NPK at 6 L/fed gave the highest plant height versus water control.

    Effect of Fertilization with Mineral NPK and Spraying with Nano NPK on Growth, Yield and Quality of Onion · 2021 · compared with spraying with water (control treatment)

    Same direction

21 papers more in this group

See all 30 papers →

application · growth · Allium cepa (onion)Positive and negative results

74 papers: 70 positive, 4 negative or no effect

69 papers in the same direction as this claim · 4 in the opposite direction

  1. no effect
    Soil surface sprays at 2.5 kg a.i./ha did not affect emergence.

    Evaluation of seed, stem and soil applications of procymidone to control white rot ( Sclerotium cepivorum Berk.) of onions · 1991

    Opposite direction

  2. no effect
    Lokananta at six hours did not differ significantly from Trisula at two hours for leaf number.

    The effect of gibberellins soaking duration on germination frequency and growth of true shallot seed in the nursery · 2021

    Opposite direction

  3. no effect
    Atonik and coconut water immersion had no significant effect on shallot leaf number (40.30).

    Study on the effect of growth regulators and the concentration of coconut water on the growth and yield of garlic shallots (Allium ascalonicum L.) · 2023

    Opposite direction

  4. no effect
    Rhizobacterial soaking had no significant effect on shallot height, leaf number, fresh weight, or oven-dry tuber weight.

    Potential of rhizobacteria plant growth promoting bacteria (PGPR) in stimulating growth and yield of shallot (Allium ascalonicum L.) · 2024

    Opposite direction

  5. positive
    Salicylic acid improved onion growth under drought stress.

    Combined effect of deficit irrigation and foliar-applied salicylic acid on physiological responses, yield, and water-use efficiency of onion plants in saline calcareous soil · 2016

    Same direction

  6. positive
    Selenium foliar application enhanced onion growth characteristics under salt stress.

    Selenium Modulates Antioxidant Activity, Osmoprotectants, and Photosynthetic Efficiency of Onion under Saline Soil Conditions · 2021

    Same direction

  7. positive
    Foliar TP and NA significantly increased top height, fresh weight and bulb dry weight of onion.

    Role of Foliar Application of Nicotinic Acid and Tryptophan on Onion Plants Response to Salinity Stress · 2014

    Same direction

  8. positive
    PGR sprays lowered canopy temperature under waterlogging.

    Bulb productivity and quality of monsoon onion (Allium cepa L.) as affected by transient waterlogging at different growth stages and its alleviation with plant growth regulators · 2023

    Same direction

65 papers more in this group

See all 74 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.