Intervention effectmodel-written summary

Soil plus foliar Zn and Fe increased grain Fe by 35% compared with soil application.

A claim from Zinc and Iron Concentration as Affected by Nitrogen Fertilization and Their Localization in Wheat Grain · 2018

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil plus foliar Zn and Fe increased grain Fe by 35% compared with soil application.

Treatment
Soil and foliar supply of Zn and Fee0
Outcome
Fee0
Direction
increasede0
Value
35%e0
Comparator
soil application onlye0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Soil and foliar supply of Zn and Fe (Zn+Fes+f), with a single application of 120 kg N ha-1 N at sowing, increased the concentration of Zn by 46% and of Fe by 35%, as compared to their soil application only”

✓ located verbatim in the source · abstract, characters 1248–1453
e1

“Wheat (Triticum aestivum var. Krabat)”

✓ located verbatim in the source · abstract, characters 301–338

Title

Zinc and Iron Concentration as Affected by Nitrogen Fertilization and Their Localization in Wheat Grain

Bal R. Singh; Yadu N. Timsina; Ole C. Lind; et al. Frontiers in Plant Science 2018. doi:10.3389/fpls.2018.00307

Other claims from this paper (8)

Record rev-acef315f8f42a2aa4a025310581f2d0e6c32ce52f7ef66c68dd02418c6958c3f · schema claims-v0.9 · position 7 in the model’s answer

iron atom · nutrient: content · Triticum aestivum (wheat)Results differ

74 papers: 61 positive, 13 negative or no effect

60 papers in the same direction as this claim · 12 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
    Zn and Fe application slightly improved grain Fe in the first year.

    Winter Wheat Grain Quality, Zinc and Iron Concentration Affected by a Combined Foliar Spray of Zinc and Iron Fertilizers · 2019

    Same directionCites this paper

  2. positive
    Zincol‐16 showed the maximum improvement in grain Fe content, 53.9 mg Fe kg −1, with soil Fe application.

    Genotypic Variability in Root System Architecture and Its Association With Fe and Zn Biofortification in Wheat ( Triticum aestivum L.) · 2025

    Same directionCites this paper

  3. positive
    30 kg Zn ha−1 plus 2.5 kg Fe ha−1 increased wheat grain Zn concentration by 100%.

    Agronomy biofortification of wheat grain in a saline and calcareous soil · 2024

    Same directionCites this paper

  4. no effect
    Fe stress did not significantly influence Cd uptake by wheat (Triticum aestivum L.).

    Phytosiderophores Influence on Cadmium Mobilization and Uptake by Wheat and Barley Plants · 2001

    Opposite direction

  5. no effect
    Fe had little effect on Zn or Mn transport in wheat.

    Manipulation of xylem transport affects Zn and Mn transport into developing wheat grains of cultured ears · 1996

    Opposite direction

  6. no effect
    Foliar iron did not significantly affect grain iron concentration in wheat cultivars.

    Effects of foliar application of micronutrients on concentration and bioavailability of zinc and iron in wheat landraces and cultivars · 2021

    Opposite direction

  7. no effect
    Urea did not further increase iron translocation from dark-induced senescent leaves.

    Inclusion of urea in a 59FeEDTA solution stimulated leaf penetration and translocation of 59Fe within wheat plants · 2014

    Opposite direction

  8. no effect
    Ionomics showed few differences in root Na+ uptake and vacuolar Na+ sequestration between two Fe levels under salt stress.

    Low iron ameliorates the salinity‐induced growth cessation of seminal roots in wheat seedlings · 2022

    Opposite direction

65 papers more in this group

See all 74 papers →

zinc atom · nutrient: content · Triticum aestivum (wheat)Results differ

380 papers: 347 positive, 33 negative or no effect

346 papers in the same direction as this claim · 33 in the opposite direction

  1. positive
    Soil Zn application increased wheat grain Zn concentration only in the Zn-deficient location.

    Biofortification and Localization of Zinc in Wheat Grain · 2010 · compared with locations without soil Zn deficiency

    Same directionCited by this paper

  2. positive
    Foliar chelated zinc yielded about two-fold greater shoot zinc concentrations than root zinc supply or foliar ZnO.

    Zinc Mobility in Wheat: Uptake and Distribution of Zinc Applied to Leaves or Roots · 2001 · compared with plants supplied with Zn in the root environment or via foliar spray of ZnO

    Same directionCited by this paper

  3. positive
    Zinc alone enhanced grain Zn concentration.

    Winter Wheat Grain Quality, Zinc and Iron Concentration Affected by a Combined Foliar Spray of Zinc and Iron Fertilizers · 2019

    Same directionCites this paper

  4. positive
    Soil Zn application significantly increased grain Zn, N and K concentrations in two wheat cultivars grown in the field.

    Source–Sink Manipulation Affects Accumulation of Zinc and Other Nutrient Elements in Wheat Grains · 2021

    Same directionCites this paper

  5. positive
    Zincol‐16 showed the maximum improvement in grain Zn content, 33.18 mg Zn kg −1, with soil application of Zn.

    Genotypic Variability in Root System Architecture and Its Association With Fe and Zn Biofortification in Wheat ( Triticum aestivum L.) · 2025

    Same directionCites this paper

  6. positive
    30 kg Zn ha−1 plus 2.5 kg Fe ha−1 increased wheat grain Zn concentration by 100%.

    Agronomy biofortification of wheat grain in a saline and calcareous soil · 2024

    Same directionCites this paper

  7. negative
    Exudates from zinc-deficient grasses greatly increased zinc and iron mobilization.

    Release of zinc mobilizing root exudates in different plant species as affected by zinc nutritional status · 1991

    Opposite directionAbout lacking this nutrient, so it counts the other way round

  8. negative
    Deficient zinc pretreatment increased net zinc uptake in both genotypes.

    Uptake of zinc from chelate-buffered nutrient solutions by wheat genotypes differing in zinc efficiency · 1996

    Opposite directionAbout lacking this nutrient, so it counts the other way round

371 papers more in this group

See all 380 papers →

application · nutrient: content · Triticum aestivum (wheat)Positive and negative results

275 papers: 257 positive, 18 negative or no effect

256 papers in the same direction as this claim · 17 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
    Foliar ZnSO 4 yielded about two-fold greater shoot zinc concentrations than root zinc supply or foliar ZnO.

    Zinc Mobility in Wheat: Uptake and Distribution of Zinc Applied to Leaves or Roots · 2001 · compared with plants supplied with Zn in the root environment or via foliar spray of ZnO

    Same directionCited by this paper

  2. positive
    Zincol‐16 showed the maximum improvement in grain Zn content, 33.18 mg Zn kg −1, with soil application of Zn.

    Genotypic Variability in Root System Architecture and Its Association With Fe and Zn Biofortification in Wheat ( Triticum aestivum L.) · 2025

    Same directionCites this paper

  3. negative
    Foliar application led to less than 1% of fertilizer nitrogen absorbed into wheat grain.

    EFFECTS OF FOLIAR- AND SOIL-APPLIED NITROGEN AND SOIL NITRATE-NITROGEN LEVEL ON THE PROTEIN CONTENT OF NEEPAWA WHEAT · 1972

    Opposite direction

  4. no effect
    Foliar P addition did not downregulate root P uptake in wheat (isotopic dilution test of the substitution hypothesis)

    Assessment of foliar-applied phosphorus fertiliser formulations to enhance phosphorus nutrition and grain production in wheat · 2020

    Opposite direction

  5. no effect
    Zn concentration in wheat was not changed when plants were sprayed at early stem elongation.

    Effects of foliar application of zinc sulfate at different phenological stages on yield formation and grain zinc content of bread wheat (cv. Kohdasht) · 2014

    Opposite direction

  6. no effect
    Foliar N had no adverse effect on grain nitrogen/sulphur ratio in cv. Avalon.

    Recovery of 15N‐labelled urea applied to the foliage of winter wheat · 1987

    Opposite direction

  7. no effect
    Foliar P had limited effect on phytate and grain iron content.

    Response of canola, wheat, and pea to foliar phosphorus fertilization at a phosphorus-deficient site in eastern Saskatchewan · 2020

    Opposite direction

  8. no effect
    Increasing foliar potassium rate did not improve grain nutrient content.

    EFFECT OF SOIL AND FOLIAR APPLICATION OF POTASSIUM ON YIELD AND MINERAL CONTENT OF WHEAT GRAINS GROWN IN SANDY SOILS · 1999

    Opposite direction

266 papers more in this group

See all 275 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.