Intervention effectmodel-written summary

All fertilizer treatment combinations increased tobacco yield compared with a control.

A claim from The response of flue‐cured tobacco and fertility status of a sandy loam soil to Mg, P, and Zn fertilization · 1992

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All fertilizer treatment combinations increased tobacco yield compared with a control.

Treatment
fertilizer treatment combinationse2
Outcome
yielde2
Direction
increasede2
Comparator
a controle2

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValueQualifier

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

t0

“tobacco and fertility status”

✓ located verbatim in the source · title, characters 27–55
e2

“All fertilizer treatment combinations increased yield compared with a control”

✓ located verbatim in the source · abstract, characters 387–464

Title

The response of flue‐cured tobacco and fertility status of a sandy loam soil to Mg, P, and Zn fertilization

P. R. Warman Communications in Soil Science and Plant Analysis 1992. doi:10.1080/00103629209368739

Other claims from this paper (5)

Record rev-e1c99871aacdb8dd7182fed44289cb659207b6ddca6c50b836461d88387f27fa · schema claims-v0.9 · position 1 in the model’s answer

fertilization · yield · Nicotiana tabacum (tobacco)Positive and negative results

214 papers: 187 positive, 27 negative or no effect

186 papers in the same direction as this claim · 24 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
    Heavy fertilization of grasses over a 4-year period without liming greatly depressed yields of subsequently planted tobacco.

    Effects of Liming on Yields and Composition of Heavily Fertilized Grasses and on Soil Properties Under Humid Tropical Conditions · 1964

    Opposite direction

  2. negative
    Composted layer manure reduced yield by 11%.

    Organic nitrogen fertilizer sources for field production of flue‐cured tobacco (Nicotiana tabacum L.) · 2022 · compared with sodium nitrate

    Opposite direction

  3. no effect
    Nitrogen fertilizer had little effect on tobacco yield.

    Study on Accumulation and Distribution of Different Sources of Nitrogen in Flue-Cured Tobacco Plant by (15)~N Tracer · 2008

    Opposite direction

  4. no effect
    Supplemental nitrogen did not increase tobacco yield when petiole sap nitrate exceeded approximately 900 mg NO 3 -N kg.

    ASSESSMENT OF BURLEY TOBACCO NITROGEN NEEDS FOLLOWING COVER CROPPING AND MANURE APPLICATION · 2008

    Opposite direction

  5. negative
    Compost amendment reduced tobacco yield overall.

    The Effect of Eco-Friendly/Sustainable Agricultural Practices (Legume Green Manure and Compost Soil Amendment) on a Tobacco Crop Grown Under Deficit Irrigation · 2025

    Opposite direction

  6. negative
    All fertilizer nitrogen as NH 4 gave the lowest cured-leaf yield in the first season.

    Effects of Soil Fumigation and the Form of Nitrogen on the Growth, Yield, and Value of Tobacco Grown on Two Soil Types. I. Plant Growth and Yield1 · 1971

    Opposite direction

  7. negative
    Organic manure alone gave significantly lower yield and output value of K326 than inorganic fertilizer (CK).

    Effects of different organic fertilizer, inorganic manure and micro-fertilizer patterns on yield and quality of tobacco planted in yellow soil. · 2009 · compared with applying inorganic fertilizer(CK)

    Opposite direction

  8. no effect
    Foliar fertilizer did not influence burley tobacco yield at either location.

    INFLUENCE OF NITROGEN RATE AND FOLIAR FERTILIZATION ON YIELD, QUALITY, AND LEAF CHEMISTRY IN BURLEY TOBACCO · 2014

    Opposite direction

205 papers more in this group

See all 214 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.