Intervention effectmodel-written summary

Foliar ZnSO4 300 ppm plus RDF gave the maximum number of leaves per plant (55.27) of potato among the nine treatments.

A claim from Effect of Foliar Application of Zinc and Manganese on Growth Parameters and Yield of Potato (Solanum tuberosum L.) · 2018

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar ZnSO4 300 ppm plus RDF gave the maximum number of leaves per plant (55.27) of potato among the nine treatments.

Taxon
Potato (Solanum tuberosum L.)Solanum tuberosume0
Treatment
foliar application of T6 – RDF + Zinc sulphate (ZnSO4) 300 ppme2
Outcome
number of leaves per plante3
Direction
maximume2
Value
55.27e3
Setting
Kumarganj, Faizabad (U.P.)e1

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorQualifier

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

Solanum tuberosum
Solanum tuberosum · TaxonScott Bauer, USDA ARS · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Potato (Solanum tuberosum L.)”

✓ located verbatim in the source · abstract, characters 106–135
e1

“carried out at Main Experiment Station, Department of Vegetable Science, Narendra Deva University of Agriculture & Technology, Kumarganj, Faizabad (U.P.), during rabi season in the year 2015-16”

✓ located verbatim in the source · abstract, characters 158–351
e2

“were noted maximum with the foliar application of T6 – RDF + Zinc sulphate (ZnSO4) 300 ppm as foliar”

✓ located verbatim in the source · abstract, characters 1398–1498
e3

“number of leaves per plant (55.27)”

✓ located verbatim in the source · abstract, characters 1167–1201

Title

Effect of Foliar Application of Zinc and Manganese on Growth Parameters and Yield of Potato (Solanum tuberosum L.)

Madhukar Singh; Alok Kumar; Sanjay Kumar Tripathi; et al. International Journal of Current Microbiology and Applied Sciences 2018. doi:10.20546/ijcmas.2018.707.165

Other claims from this paper (9)

Record rev-a6b0cf202e2b0de39f4a2b8eb2dde03d284f211aab90b803ffa85345f68a5043 · schema claims-v0.9 · position 4 in the model’s answer

zinc sulfate · yield · Solanum tuberosum (potato)Positive and negative results

12 papers: 10 positive, 2 negative or no effect

9 papers in the same direction as this claim · 2 in the opposite direction

  1. no effect
    Zinc sulphate and zinc oxide caused little or no decrease in tuber yield.

    Field and glasshouse experiments on the control of potato mop‐top virus · 1976

    Opposite direction

  2. no effect
    Zinc sulfate up to 40 lb/acre caused no significant difference in potato yield.

    Effect of Zinc Fertilization on Yield, Enzymatic Discoloration, Phenolic and Nitrogenous Constituents of Potato Tubers · 1981

    Opposite direction

  3. positive
    Resistance plus micronutrients produced 235 q/ha yield.

    Integrated Management of Late Blight Disease of Potato · 2003

    Same direction

  4. positive
    T7 gave the highest harvest index, 83.20%.

    Nutrient use effeciency, yield attributes and comparative economics of potato crop (Solanum tuberosum L.) in response to zinc and boron nutrition in entisols of India · 2020

    Same direction

  5. positive
    Treatment T7 significantly increased total tuber yield.

    Agronomic zinc biofortification of potato (Solanum tuberosum) through soil and foliar zinc sulphate application in Rajasthan · 2024

    Same direction

  6. positive
    Adding 100 g of organic fertilizer with 1 g of zinc sulfate significantly increased the yield of one plant (1164.50 g).

    Response of Potato to Organic Fertilizer and Zinc Sulfate Spraying on some Growth Characteristics and Yield · 2023

    Same direction

  7. positive
    T9 was best for potato growth and yield traits other than leaf number.

    Effect of foliar spraying of micronutrients on growth and yield of potato (Solanum tuberosum) · 2022

    Same direction

  8. positive
    T7 gave a significantly higher total tuber yield of 26.89 kg ha-1.

    Effect of Zinc Nutrition on Productivity, Quality and Biofortification in Potato (Solanum tuberosum) · 2025

    Same direction

3 papers more in this group

See all 12 papers →

application · yield · Solanum tuberosum (potato)Positive and negative results

191 papers: 177 positive, 14 negative or no effect

176 papers in the same direction as this claim · 14 in the opposite direction

  1. positive
    Combined 8 ppt Zn and 4 ppt Mn gave maximum yield of 38950 kg ha-1.

    Effect of Zinc and Manganese Foliar Application on Yield, Quality and Enrichment on Potato (Solanum tuberosum L.) · 2007

    Same directionCited by this paper

  2. positive
    All double spray treatments yielded more potatoes.

    Evaluation of foliar application of zinc at different doses on potato (Solanum tuberosum L.) growth, yield, and economic feasibility in Dolpa of Nepal · 2025

    Same directionCites this paper

  3. no effect
    Foliar zinc below 1.08 g per plant did not significantly affect Maris Piper tuber yield.

    Bio-fortification of potato tubers using foliar zinc-fertiliser · 2012

    Opposite direction

  4. no effect
    Foliar P had no effect on tuber number or yield.

    Effects of soil- and foliar-applied phosphorus fertilizers on the potato (Solanum tuberosum) crop · 2001

    Opposite direction

  5. negative
    Root dipping lowered harvestable dry matter yield compared with soil infestation for potato Element and Astarte, flax, sugarbeet and barley.

    Formation of microsclerotia of Verticillium dahliae on various crops · 1995 · compared with soil infestation treatment

    Opposite direction

  6. no effect
    Nimbicidine spray did not significantly influence plant growth or tuber yield.

    Effect of PLRV infected seed tuber on disease incidence, plant growth and yield parameters of potato · 1970

    Opposite direction

  7. no effect
    Spraying time had no remarkable influence on potato growth and yield.

    The effect of foliar application of seaweed extract on potato · 1989

    Opposite direction

  8. no effect
    None of the potato spray treatments affected tuber yield or shape.

    Substituted benzoic and picolinic acids as foliar sprays against potato common scab · 1988

    Opposite direction

182 papers more in this group

See all 191 papers →

fertilization · yield · Solanum tuberosum (potato)Positive and negative results

450 papers: 394 positive, 56 negative or no effect

393 papers in the same direction as this claim · 48 in the opposite direction · 8 reporting no difference from an alternative

  1. negative
    Without fertilizer potato yield fell more than winter rye yield.

    The influence of fertilization and rotation on soil organic matter and plant yields in the long-termEternal Rye trial in Halle (Saale), Germany · 2000 · compared with winter rye

    Opposite direction

  2. negative
    Vegetable yields under compost treatments were lower than under mineral fertilizers during the first two years.

    Enhanced Food Quality: Effects of Composts on the Quality of Plant Foods · 1993 · compared with mineral fertilizers

    Opposite direction

  3. no effect
    Nitrogen fertilization in the greenhouse did not increase cyanophycin yield compared with control tubers.

    Tuber‐specific cphA expression to enhance cyanophycin production in potatoes · 2009 · compared with control tubers

    Opposite direction

  4. no effect
    Increasing fertiliser in the field did not greatly increase potato nutrient uptake, particularly P and K, growth or yield.

    Effects of Globodera Rostochiensis and Fertilisers On the Mineral Nutrient Content and Yield of Potato Plants · 1980

    Opposite direction

  5. no effect
    Tuber yield was not increased when N fertilizer was applied to potato after forage crops.

    The effects of forage grasses and legumes on subsequent potato yield, nitrogen cycling, and soil properties · 2022

    Opposite direction

  6. no effect
    Potassium fertilization had no significant influence on harvest index.

    Nitrogen and Potassium Fertilization Responses of Potato (Solanum tuberosum) cv. Spunta · 2012

    Opposite direction

  7. no effect
    BCA treatments with half fertilizer did not differ significantly from the fully fertilized control in tuber number and weight.

    Control of bacterial wilt (ralstoniasolanacearum) in potato (Solanum tuberosum) using rhizobacteria and arbuscular mycorrhiza fungi. · 2018 · compared with complete fertilized control

    Opposite direction

  8. negative
    The highest K fertilizer application reduced potato tuber yield.

    Total soil electrical conductivity and critical soil K+ to Ca2+ and Mg2+ ratio for potato crops · 1999

    Opposite direction

441 papers more in this group

See all 450 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.