Intervention effectmodel-written summary

Zinc fertilizer increased spring wheat yield by an average 883 kg ha −1 in Karaj.

A claim from Selecting Zinc‐Efficient Wheat Genotypes with High Grain Yield Using a Stress Tolerance Index · 2009

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Zinc fertilizer increased spring wheat yield by an average 883 kg ha −1 in Karaj.

Taxon
spring wheatTriticum aestivume0
Treatment
Zn fertilizere0
Outcome
grain yielde0
Direction
increasede0
Value
883e0
Setting
Karaje0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorQualifier

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

“Application of Zn fertilizer increased grain yield of spring wheat genotypes an average of 883 and 913 kg ha −1 in Karaj and Isfahan locations, respectively”

✓ located verbatim in the source · abstract, characters 953–1109

Title

Selecting Zinc‐Efficient Wheat Genotypes with High Grain Yield Using a Stress Tolerance Index

Amir H. Khoshgoftarmanesh; Azadeh Sadrarhami; Hamid R. Sharifi; et al. Agronomy Journal 2009. doi:10.2134/agronj2009.0103

Other claims from this paper (6)

Record rev-0dbae17c1cfdf733e0c6a9f9501c7f0ba2802ec92d07e6f47b3518637a93e456 · schema claims-v0.9 · position 2 in the model’s answer

zinc atom · yield · Triticum aestivum (wheat)Results differ

511 papers: 456 positive, 55 negative or no effect

455 papers in the same direction as this claim · 49 in the opposite direction · 6 reporting no difference from an alternative

  1. no effect
    Zinc treatment had no significant effect on grain, straw and biological yields.

    Sowing Time and Zn Application Effects on Productivity and Zn Use Efficiency of Wheat (Triticum aestivum L.) Varieties · 2020

    Opposite directionCites this paper

  2. positive
    Zinc application by any tested method significantly increased grain yield in all wheat cultivars.

    Effect of different zinc application methods on grain yield and zinc concentration in wheat cultivars grown on zinc‐deficient calcareous soils · 1997

    Same directionCited by this paper

  3. no effect
    Zinc application yielded hardly any benefit.

    Landscape positions dictating crop fertilizer responses in wheat-based farming systems of East African Highlands · 2020

    Opposite direction

  4. negative
    Zinc inhibited non mycorrhizal wheat root dry yield.

    Arbuscular mycorrhizal strategy for zinc mycoremediation and diminished translocation to shoots and grains in wheat · 2017

    Opposite direction

  5. no effect
    Foliar Zn had no significant effect on wheat grain yield.

    Foliar zinc fertilization improves the zinc nutritional value of wheat (Triticum aestivum L.) grain · 2011

    Opposite direction

  6. no effect
    Zinc supply had little effect on wheat biomass.

    Plant growth and cation composition of two cultivars of spring wheat (Triticum aestivum L.) differing in P uptake efficiency · 2001

    Opposite direction

  7. no effect
    Soil Zn fertilisers had no significant effect on grain Zn concentration or yield.

    Site-Specific Factors Influence the Field Performance of a Zn-Biofortified Wheat Variety · 2020

    Opposite direction

  8. no effect
    Soil Zn application did not significantly affect wheat grain yield.

    Relevance for food sciences of quantitative spatially resolved element profile investigations in wheat ( Triticum aestivum ) grain · 2013

    Opposite direction

502 papers more in this group

See all 511 papers →

fertilization · yield · Triticum aestivum (wheat)Positive and negative results

3,438 papers: 3,115 positive, 323 negative or no effect

3,114 papers in the same direction as this claim · 284 in the opposite direction · 39 reporting no difference from an alternative

  1. no effect
    Current high nitrogen practices do not significantly raise crop yields relative to optimum fertilization.

    Reducing environmental risk by improving N management in intensive Chinese agricultural systems · 2009 · compared with knowledge-based optimum N fertilization

    Opposite direction

  2. negative
    Wheat yield declined by 0.04 Mg ha −1 yr −1 with 75 and 100% N-P-K fertilizer.

    Yield and Soil Nutrient Changes in a Long‐Term Rice‐Wheat Rotation in India · 2002

    Opposite direction

  3. negative
    The authors concluded that N fertiliser could not compensate for the yield reduction in canola and wheat due to late sowing.

    Effects of sowing time and nitrogen fertiliser on canola and wheat, and nitrogen fertiliser on Indian mustard. I. Dry matter production, grain yield, and yield components · 2001

    Opposite direction

  4. negative
    Genetic gain in winter wheat yield without fertiliser N was 0.021 t ha −1 y −1, smaller than at 215–250 kg/ha N.

    Responses of grain yield, biomass and harvest index and their rates of genetic progress to nitrogen availability in ten winter wheat varieties · 2006 · compared with 215–250 kg/ha N

    Opposite direction

  5. no effect
    The fertilizing substances did not significantly change plant yields.

    The influence of chlorothalonil on the activity of soil microorganisms and enzymes · 2018

    Opposite direction

  6. no effect
    Compost did not significantly affect wheat grain yield, biomass or harvest index.

    Responses of Wheat Yield, Macro- and Micro-Nutrients, and Heavy Metals in Soil and Wheat following the Application of Manure Compost on the North China Plain · 2016

    Opposite direction

  7. no effect
    Wheat yields were similar in fertilized fallow and unfertilized green-manure plots.

    Wheat Yields, Nitrogen Uptake, and Soil Moisture Following Winter Legume Cover Crop vs. Fallow · 1998 · compared with unfertilized plots following a green manure crop

    Opposite direction

  8. no effect
    Incorporation timing of feedlot cattle manure had no impact on soil or crop performance.

    Effect of rate, frequency and incorporation of feedlot cattle manure on soil nitrogen availability, crop performance and nitrogen use efficiency in east-central Saskatchewan · 2004

    Opposite direction

3,429 papers more in this group

See all 3,438 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.