Intervention effectmodel-written summary

Maize grain yield ranked 7.5 through 15 kg Zn ha−1 equally, above 5, 2.5 and control.

A claim from Zinc application rate for optimal profitability of maize production systems in the savanna agroecological zones of Northern Ghana · 2022

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maize grain yield ranked 7.5 through 15 kg Zn ha−1 equally, above 5, 2.5 and control.

Taxon
maizeZea mayse0
Treatment
15 kg Zn ha−1 = 12.5 kg Zn ha−1 = 10 kg Zn ha−1 = 7.5 kg Zn ha−1e0
Outcome
maize grain yielde0
Direction
>e0
Comparator
controle0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

“maize grain yield with each treatment followed the order 15 kg Zn ha−1 = 12.5 kg Zn ha−1 = 10 kg Zn ha−1 = 7.5 kg Zn ha−1 > 5 kg Zn ha−1 > 2.5 kg Zn ha−1 > control”

✓ located verbatim in the source · abstract, characters 624–787

Title

Zinc application rate for optimal profitability of maize production systems in the savanna agroecological zones of Northern Ghana

Sampson Agyin-Birikorang; Ignatius Tindjina; Jr Job Fugice; et al. Journal of Plant Nutrition 2022. doi:10.1080/01904167.2022.2064300

Other claims from this paper (3)

Record rev-428e00fca1efb14a1c1635243654bb986736f9a6671dbed914e649f451d20eaf · schema claims-v0.9 · position 1 in the model’s answer

zinc atom · yield · Zea mays (maize)Results differ

441 papers: 391 positive, 50 negative or no effect

390 papers in the same direction as this claim · 47 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
    Soil Zn fertilizer increased maize yield by 4.2-16.7%.

    Soil Application of Zinc Fertilizer Increases Maize Yield by Enhancing the Kernel Number and Kernel Weight of Inferior Grains · 2020

    Same directionCited by this paper

  2. positive
    Adding S, Zn and B to NPK increased maize yield 60% over NPK only in Sudan savanna.

    Managing essential plant nutrients to improve maize productivity in the savanna agroecological zones of Northern Ghana: the role of secondary and micronutrients · 2022 · compared with NPK-only treatment

    Same directionCited by this paper

  3. negative
    Adding Zn to the intermediate Fe level accentuated Fe deficiency and depressed corn yield.

    Nutrient Balance Involving Phosphorus, Iron, and Zinc · 1965 · compared with intermediate Fe level

    Opposite direction

  4. negative
    Corn yield at zero zinc and 3.0 mM phosphorus was significantly lower than at 1.0 mM phosphorus.

    Potential for Phosphorus Toxicity in Zinc‐Stressed Corn and Potato · 1981 · compared with 1.0 m M P

    Opposite direction

  5. no effect
    Most foliar Zn applications had no grain-yield effect.

    Effect of Foliar Micronutrients (B, Mn, Fe, Zn) on Maize Grain Yield, Micronutrient Recovery, Uptake, and Partitioning · 2021

    Opposite direction

  6. negative
    In a pot experiment the highest Zn rate (250 ppm) slightly reduced corn yield.

    EFFECTS OF SOIL PROPERTIES AND AMENDMENTS ON THE AVAILABILITY OF ZINC IN SOILS · 1974

    Opposite direction

  7. negative
    Zn alone or P alone reduced aboveground dry matter and yield at harvest by 8-85% in LCV and FER soils relative to unfertilized plants

    Combining P and Zn fertilization to enhance yield and grain quality in maize grown on Mediterranean soils · 2021 · compared with unfertilized (control) plants

    Opposite direction

  8. no effect
    Maize grain yield did not respond to zinc application.

    Yield-limiting plant nutrients for maize production in northwest Ethiopia · 2022

    Opposite direction

432 papers more in this group

See all 441 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.