Intervention effectmodel-written summary

T7 yielded returns per rupee invested 28.5% above farmer practice.

A claim from 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

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T7 yielded returns per rupee invested 28.5% above farmer practice.

Treatment
T7 (T1+ Foliar spray of 0.1% zinc (zinc sulphate) + 0.1% boron (boric acid) at 40, 50 and 60 DAP)e0
Outcome
returns per rupee investede0
Direction
abovee0
Value
28.5%e0
Comparator
farmer‟s practicee0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier

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

“returns per rupee invested above farmer‟s practice of 28.5% was observed in T7 (T1+ Foliar spray of 0.1% zinc (zinc sulphate) + 0.1% boron (boric acid) at 40, 50 and 60 DAP).”

✓ located verbatim in the source · abstract, characters 1454–1628
e1

“growth and yield of potato under lower Gangetic plains of West Bengal”

✓ located verbatim in the source · abstract, characters 234–303

Title

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

Biswajit Lenka; Divya RK; Das SK International Journal of Chemical Studies 2020. doi:10.22271/chemi.2020.v8.i3a.9457

Other claims from this paper (2)

Record rev-0e2a7eae61628dcd058824a69c1a9498c992b0f6fa69ff1776841711de80deb3 · schema claims-v0.9 · position 3 in the model’s answer

boron atom · yield · Solanum tuberosum (potato)Results differ

26 papers: 21 positive, 5 negative or no effect

20 papers in the same direction as this claim · 5 in the opposite direction

  1. positive
    Joint zinc and boron application significantly improved potato yield.

    Effect of boron and zinc application on growth and productivity of potato (Solanum tuberosum) at alluvial soil (Entisols) of India · 2001

    Same directionCited by this paper

  2. negative
    Grade 1 tuber yield decreased as B rates increased above 2 kg/ha.

    Boron deficiency and toxicity in potato cv. Sebago on an oxisol of the Atherton Tablelands, North Queensland · 1992

    Opposite direction

  3. negative
    Foliar biostimulants and lithovit, with or without boron, significantly increased tuber number and total tuber yield per plant.

    IMROVING GROWTH AND PRODUCTIVITY OF POTATO (Solanum tuberosum L.) BY SOME BIOSTIMULANTS AND LITHOVIT WITH OR WITHOUT BORON · 2015

    Opposite directionAbout lacking this nutrient, so it counts the other way round

  4. no effect
    Calcium and boron additions did not affect potato tuber yield.

    Effect of sulfur, calcium, and boron on tissue nutrient concentration and potato yield1 · 1993

    Opposite direction

  5. no effect
    Laboratory-prepared chelated boron and the commercial compound did not differ in their effects on potato growth, yield and yield attributes.

    Effect of Foliar Spraying with Different Concentrations of Chelated Boron on Humic and Fulvic Acids on Growth, Yield and Chemical Composition of Potato Grown in Sandy Soils · 2022 · compared with the commercial compound

    Opposite direction

  6. no effect
    Boron did not affect potato yields on any studied soil.

    Flathead County soils in relation to their inherent fertility status · 1963

    Opposite direction

  7. positive
    Boron at 0.04% increased potato total yield to 18.7 t ha−1.

    Calcium and Boron Effect on Production and Quality of Autumn Potato Crop Under Chilling Temperature · 2020 · compared with control treatment

    Same direction

  8. positive
    Boron fertilization significantly increased potato tuber number and yield.

    Boron fertilization effects in processing grade potato on an Inceptisol of West Bengal, India · 2018

    Same direction

17 papers more in this group

See all 26 papers →

zinc atom · yield · Solanum tuberosum (potato)Results differ

38 papers: 33 positive, 5 negative or no effect

32 papers in the same direction as this claim · 5 in the opposite direction

  1. positive
    Joint zinc and boron application significantly improved potato yield.

    Effect of boron and zinc application on growth and productivity of potato (Solanum tuberosum) at alluvial soil (Entisols) of India · 2001

    Same directionCited by this paper

  2. positive
    Dry matter yield of potato tubers was higher with higher doses of zinc.

    Response of Potato to Zinc Application in Eastern Indo-Gangetic Plains of India · 2021

    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
    None of nine phosphorus-zinc treatments supported phosphorus-induced zinc deficiency in potato early dry matter yield.

    PHOSPHORUS AND ZINC INTERACTIONS IN CHELATOR-BUFFERED SOLUTION GROWN RUSSET BURBANK POTATO · 2010

    Opposite direction

  5. negative
    Application of 100 lb/acre zinc sulfate reduced total yield and U.S. #1 yield of potatoes significantly.

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

    Opposite direction

  6. negative
    Foliar Zn at 1–2 kg ha−1 reduced total tuber yield and tuber count over 55 mm.

    COPPER AND ZINC NUTRITION OF RUSSET BURBANK POTATOES GROWN ON PRINCE EDWARD ISLAND · 1990

    Opposite direction

  7. no effect
    Zinc fertilization did not significantly affect tuber yield in either season.

    Soil Application of Zinc for Potato Biofortification in the Central Andes of Peru · 2026

    Opposite direction

  8. positive
    Zn and Mn application increased potato tuber yield per plant.

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

    Same direction

29 papers more in this group

See all 38 papers →

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
    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

  5. 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

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

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

    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 →

3 of 5 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.