Intervention effectmodel-written summary

Soil zinc increased wheat grain yield at sites in India, Pakistan and China.

A claim from Effect of zinc‐biofortified seeds on grain yield of wheat, rice, and common bean grown in six countries · 2019

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil zinc increased wheat grain yield at sites in India, Pakistan and China.

Treatment
soil Zn fertilizatione0
Outcome
wheat grain yielde0
Direction
increasede0
Setting
Indiae0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorValueQualifier

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 Zn fertilization increased wheat grain yield in all six locations in India, two locations in Pakistan and one location in China.”

✓ located verbatim in the source · abstract, characters 1007–1140

Title

Effect of zinc‐biofortified seeds on grain yield of wheat, rice, and common bean grown in six countries

Abdul Rashid; Hari Ram; Chun-Qin Zou; et al. Journal of Plant Nutrition and Soil Science 2019. doi:10.1002/jpln.201800577

Other claims from this paper (10)

Record rev-a4c554b41cedce99997d50a1d2b6eec0333d548cd9a6f7a876d001e6674fd50e · schema claims-v0.9 · position 1 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. positive
    Soil Zn application increased wheat grain yield by 10.5% under adequate water supply.

    Physiological Responses and Yield of Wheat Plants in Zinc-Mediated Alleviation of Drought Stress · 2017

    Same directionCited by this paper

  2. positive
    Seeds with 800 and 1,465 ng Zn seed‐1 produced significantly higher grain yield than low zinc seed.

    Effect of seed zinc content on grain yield and zinc concentration of wheat grown in zinc‐deficient calcareous soils · 1998 · compared with low seed‐Zn

    Same directionCited by this paper

  3. positive
    Seed priming with Zn+B increased grain yield by 34% relative to untreated seeds.

    Micronutrient seed priming improves stand establishment, grain yield and biofortification of bread wheat · 2018 · compared with untreated seeds

    Same directionCited by this paper

  4. positive
    Soil Zn application increased wheat grain and straw yields across seed priming treatments by up to 23%

    Biofortification of wheat in salt-affected soil through seed priming and soil application of zinc · 2024

    Same directionCites this paper

  5. positive
    Zn plus P increased wheat grain yield by 23% versus control.

    Wheat genotype responses to phosphorus and zinc: Differential growth, mycorrhizal interactions, and zinc accumulation · 2025 · compared with control

    Same directionCites this paper

  6. 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

  7. 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

  8. 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

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. positive
    High nitrogen fertilization increased wheat grain yield by 7%.

    Synergistic Effects of Nitrogen Management and Foliar Micronutrient Cocktails on the Biofortification of Bread Wheat with Zinc and Selenium · 2026

    Same directionCites this paper

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

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.