Intervention effectmodel-written summary

Nano Fe/SiO2 at 15 mg kg−1 increased maize shoot length by 20.8%.

A claim from Effects of nano Fe/SiO2fertilizers on germination and growth of barley and maize · 2016

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nano Fe/SiO2 at 15 mg kg−1 increased maize shoot length by 20.8%.

Taxon
maizeZea mayse0
Treatment
15 mg kg−1 of nano Fe/SiO2e0
Outcome
shoot lengthe0
Direction
increasede0
Value
20.8%e0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of 15 mg kg−1 of nano Fe/SiO2 increased the shoot length: 8.25% and 20.8% for barley and maize, respectively”

✓ located verbatim in the source · abstract, characters 552–672

Title

Effects of nano Fe/SiO2fertilizers on germination and growth of barley and maize

Marjan Najafi Disfani; Azadeh Mikhak; Mohammad Zaman Kassaee; et al. Archives of Agronomy and Soil Science 2016. doi:10.1080/03650340.2016.1239016

Other claims from this paper (8)

Record rev-4e01954c8b1576ca653e3b0b10750da73256578b21d78872798952671edd9097 · schema claims-v0.9 · position 4 in the model’s answer

iron atom · growth · Zea mays (maize)Results differ

64 papers: 57 positive, 7 negative or no effect

56 papers in the same direction as this claim · 7 in the opposite direction

  1. positive
    Seed priming improved germination.

    Green Synthesis of Hyperbranched Spermine-Coated Fe3O4 Nanoparticles and Their Effect on Corn Seedlings under Copper Oxide Stress · 2023

    Same directionCites this paper

  2. negative
    Second-progeny plants from Fe nanoparticle-treated parents showed less biomass than controls and the first generation

    Physiological effects of repeated foliar application of magnetite nanoparticles on maize plants · 2017 · compared with control group and the first generation

    Opposite direction

  3. negative
    Low iron significantly decreased root volume, root length and root tip number in both cultivars.

    Root morphological and physiological characteristics in maize seedlings adapted to low iron stress · 2020

    Opposite direction

  4. negative
    Fe-MA reduced maize development.

    Organic acids as complexing agents for iron and their effects on the nutrition and growth of maize and soybean · 2021

    Opposite direction

  5. no effect
    Soil iron contamination had relatively little effect on the heat of combustion and calorific value of maize biomass.

    Effects of Humic Acids on Calorific Value and Chemical Composition of Maize Biomass in Iron-Contaminated Soil Phytostabilisation · 2024

    Opposite direction

  6. no effect
    Iron oxide nanoparticle suspensions below 50 ppm iron show no evidence of negative effects on maize seed germination and seedling growth in vitro.

    In vitro germination and growth of maize and lettuce seeds exposed to iron oxide magnetic nanoparticles · 2023

    Opposite direction

  7. negative
    Maize callus growth was 18 to 36% of control when P, K or Fe was at 1/30 of normal.

    Effect of lowered N, P, K or FE levels on the growth of regenerable maize and soybean callus cultures · 1990 · compared with control

    Opposite direction

  8. negative
    At higher concentrations, Fe restrained maize seed germination.

    Effects of Cu,Fe,Zn and Pb on Seed Germination and α-Amylase Activity of Maize · 2010

    Opposite direction

55 papers more in this group

See all 64 papers →

silicon dioxide · growth · Zea mays (maize)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this claim

  1. positive
    Zea mays L.: 400 mg L -1 SiO2 nanoparticles increased seed germination, root and shoot lengths.

    Morphological, Physiological and Biochemical Responses of Crops (Zea mays L., Phaseolus vulgaris L.), Medicinal Plants (Hyssopus officinalis L., Nigella sativa L.), and Weeds (Amaranthus retroflexus L., Taraxacum officinale F. H. Wigg) Exposed to SiO2 Nanoparticles · 2016

    Same direction

  2. positive
    Silica and nano silica improved growth and vigor under stress.

    Exogenous Application of Silica and Nano Silica Particles Improves Nutrient Acquisition and Growth of Maize ( Zea Mays L.) Under Saline and Water Deficit Conditions · 2025

    Same direction

  3. positive
    Soil drenching with either silicon source increased maize root fresh and dry weight.

    Silicon-based induced resistance in maize against fall armyworm [Spodoptera frugiperda (Lepidoptera: Noctuidae)] · 2021

    Same direction

  4. positive
    Three-quarter-dose combination enhanced photosynthesis, leaf Si and leaf area.

    Nano-enabled plant fortification: green-synthesized SiO2 and emamectin benzoate nanoparticles synergistically boost maize defense and agronomic performance against Spodoptera frugiperda infestation · 2026

    Same direction

  5. positive
    Soil applied active silica at 150 kg ha raised leaf area index and growth rates.

    Effect of Active Silica on Growth and Profitability of Maize under Organic Farming · 2022

    Same direction

  6. positive
    Silica derived from rice husk ash and impregnated with neem and rosemary oils retained more than 85% of the germinative capacity of stored maize grains even after prolonged storage.

    Use of essential and vegetable oil-impregnated rice husk silica to control Sitophilus zeamais (Motschulsky) on stored maize (Zea Mays L.) seeds · 2026

    Same direction

  7. positive
    Storing organic corn seeds in glass bottles with drying beads or silica gel under ambient conditions can maintain high germination and seedling emergence after nine months.

    Seed Quality Maintenance of Organic Corn Under Ambient Conditions: Los Baños, Laguna, Philippines · 2026

    Same direction

See all 8 papers →

nanoparticle · growth · Zea mays (maize)Positive and negative results

182 papers: 161 positive, 21 negative or no effect

160 papers in the same direction as this claim · 21 in the opposite direction

  1. negative
    Hydroponic nanoparticle additions rapidly inhibited leaf growth.

    Colloidal suspensions of clay or titanium dioxide nanoparticles can inhibit leaf growth and transpiration via physical effects on root water transport · 2009

    Opposite direction

  2. negative
    Half NP plus biofertilizers and compost produced less maize fodder growth than full NPK.

    Enhancing crop growth, nutrients availability, economics and beneficial rhizosphere microflora through organic and biofertilizers · 2007 · compared with full dose of NPK fertilizers

    Opposite direction

  3. negative
    A 100 mg nanopesticide dose decreased biomass by 17–20%.

    Response at Genetic, Metabolic, and Physiological Levels of Maize (Zea mays) Exposed to a Cu(OH)2 Nanopesticide · 2017

    Opposite direction

  4. negative
    Second-progeny plants from Fe nanoparticle-treated parents showed less biomass than controls and the first generation

    Physiological effects of repeated foliar application of magnetite nanoparticles on maize plants · 2017 · compared with control group and the first generation

    Opposite direction

  5. no effect
    Neither pre- nor post-emergence encapsulated atrazine affected maize shoot growth at either concentration.

    Evaluation of the side effects of poly(epsilon-caprolactone) nanocapsules containing atrazine toward maize plants · 2015

    Opposite direction

  6. no effect
    Nanoparticles did not visibly affect corn morphology.

    Insecticidal efficacy of nanoparticles against Spodoptera frugiperda (J.E. Smith) larvae and their impact in the soil · 2023

    Opposite direction

  7. negative
    The protonophore CCCP at 50 nanomolar inhibited maize root growth by only 31% at 96 hours.

    Effects of Diclofop and Diclofop-Methyl on Membrane Potentials in Roots of Intact Oat, Maize, and Pea Seedlings · 1991

    Opposite direction

  8. no effect
    DTD nanoemulsions had no adverse effect on maize growth.

    Optimization of ultrasound extraction technology of DTD from Ageratina adenophora, and the preparation and characterization of nanoemulsions: Insecticidal activity and safety evaluation · 2023

    Opposite direction

173 papers more in this group

See all 182 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.