zinc atom · Yield · Allium cepa (onion)

Results differ36 papers: 33 positive, 3 negative or no effect · 1 pair of papers confirmed to differ

71 claims from these papers; 15 citations between them.

Papers whose results differ, checked claim by claim 1

1 pair of papers on this question report results that differ: an effect in one paper, the opposite effect or no effect in the other. Two model reviewers reading both claims accepted each pair.

Crop Responses to Some Micronutrients and Sodium on Sphagnum Peat Soil (1964)
decreaseRepeated zinc applications depressed yield from the fifth through eleventh crops.
DETERMINING THE ZINC REQUIREMENT OF ONION BY SEED ANALYSIS (2011)
increaseZinc application significantly increased seed yield of all three onion cultivars in a field experiment.
What separates themTest system: controlled environment · fieldCompare the two papers →

How these papers cite each other

15 citations between these papers: 13 on the same side, 2 across the two sides.

Positive result
Negative result or no effect
Citation, pointing to the cited paper
Citation across the two sides
Larger circle: more citations overall

Years run left to right. Citations come from the papers’ OpenAlex reference lists. Hover a paper to bring forward its citations; click it to open the paper.

Papers reporting a positive result 33

Effect of Cd, Ni, Pb and Zn on growth and chemical composition of onion and fenugreek · 1990
- positive
  Zn at 50 mg/kg soil slightly increased onion yield, while higher levels reduced yield.
- negative
  Higher Zn levels reduced onion yield.
RESPONSE OF ONION TO FOLIAR APPLICATION OF SOME MICRONUTRIENTS · 1999
- positive
  Zn foliar treatment changed onion dry yield by 27.8% relative to control in the second growing season.
  compared with control
- positive
  Zn foliar treatment changed onion dry yield by 23.6% relative to control in the first growing season.
  compared with control
cited by 1 paper here
Methods of cotton (Gossypium hirsutum) establishment and zinc fortification in cotton-based cropping systems: Direct and residual effect on onion (Allium cepa) and system productivity of cottononion cropping system · 2001
- positive
  Direct application of 5.0 kg Zn/ha produced onion growth and yield attributes and bulb yield significantly superior to control.
  compared with control
- positive
  Direct application of 5.0 kg Zn/ha gave onion gross and net returns significantly superior to control.
  compared with control
- positive
  Residual and direct Zn treatments gave a gain in onion net returns of 40,350, 43,200 and 47,950/ha over control.
  compared with control
- positive
  Residual effect of 5.0 and 7.5 kg Zn/ha to cotton gave onion bulb yield significantly superior to control.
  compared with control
cites 2 papers here
Essential oil, growth and yield of onion (Allium cepa L.) in response to foliar application of some micronutrients. · 2009
- positive
  Zn foliar application significantly increased onion yield relative to controls.
  compared with control plants
cited by 1 paper here
DETERMINING THE ZINC REQUIREMENT OF ONION BY SEED ANALYSIS · 2011
- positive
  Zinc application significantly increased seed yield of all three onion cultivars in a field experiment.
cites 1 paper here
Response of micronutrients on qualitative and quantitative parameters of onion (Allium cepa L.) · 2012
- positive
  Onion number of leaves per plant (12.4) was maximum in treatment T3 and also in T11.
- positive
  Onion bulb diameter (7.2 cm) was maximum in treatment T3 and also in T11.
- positive
  Onion yield per hectare (379.6 q) was maximum in treatment T3 (Zn at 4 mg L-1) and also in T11.
cited by 1 paper here
Effect of micronutrients on growth and yield of onion under calcareous soil environment · 2012
- positive
  The Zn and B combination was better for onion vegetative growth and yield.
cited by 6 papers here
Zinc and Boron Affect Yield and Quality of Onion (Allium cepaL.) Seed · 2013
- positive
  Seed yield of 3.67 g per plant was highest under the 12 × 8 kg·ha−1 Zn and B combination.
- positive
  Seed yield of 1073 kg·ha−1 was highest under the 12 × 8 kg·ha−1 Zn and B combination.
Effect Of Soil And Foliar Applications Of Zinc And Iron On The Yield And Quality Of Onion (Allium cepa L.) · 2013
- positive
  Foliar Zn with 2,4-D increased onion bulb yield to 45 t/ha.
- positive
  Foliar Zn with 2,4-D increased onion bulb weight to 73.9 g.
cited by 1 paper here
Integrated nutrient management for higher yield, quality and profitability of onion (Allium cepa) · 2015
- positive
  The maximum gross return (Rupees 234 902.5 tonnes/ha) was obtained with combined use of 100% NPK + FYM + Zn + S.
- positive
  100% NPK + 10 tonnes FYM + 6 kg Zn + 20 kg S/ha gave a dry matter yield of 5.66 tonnes/ha, superior to 150% NPK alone (5.22 tonnes/ha).
  compared with 150% NPK alone
- positive
  The maximum net returns (Rupees 171 085.1/ha) were obtained with combined use of 100% NPK + FYM + Zn + S.
- positive
  The maximum B:C ratio (2.67) was obtained with combined use of 100% NPK + FYM + Zn + S.
cited by 1 paper here
Effects of zinc and boron application on onion and their residual effects on Mungbean · 2015
- positive
  Zn at 4 kg ha-1 and B at 3 kg ha-1 gave a 52% onion yield benefit versus control.
  compared with control (Zn0B0)
cites 1 paper here
INFLUENCE OF FOLIAR APPLICATION BY SALICYLIC ACID AND SOME MICRONUTRIENTS ON GROWTH, YIELD AND QUALITY OF ONION CROP · 2016
- positive
  Foliar spraying of onion with a mixture of Fe, Zn and Mn markedly increased bulb yield and its components compared with water spraying.
  compared with spraying with water
Response of Onion Yield and Its Chemical Content to NPK Fertilization and Foliar Application of Some Micronutrients · 2017
- positive
  The combined 50% NPK and foliar Fe, Zn and Cu treatment gave the highest onion bulb weights and yield.
cites 1 paper herecited by 1 paper here
Effect of Micronutrients, Growth Regulators and Organic Manures on Yield, Biochemical and Mineral Component of Onion (Allium cepa L.) Grown in Vertisols · 2017
- positive
  Soil zinc with cow dung slurry was best for onion leaf number, bulb polar diameter, and bulb weight.
cited by 1 paper here
Effect of foliar application of micronutrients on growth and yield of onion (Allium cepa L.) c.v. Agri found dark red · 2017
- positive
  The Zn+ Mn+ B+ Cu combination gave 333.32 q/ha bulb yield, followed by the boron treatment.
  compared with T3 -B (0.25%)
cited by 1 paper here
Effect of zinc and boron on growth, yield and quality of onion (Allium cepa L.) cv. Agrifound dark red · 2017
- positive
  Zn 25 kg + B 5 kg ha-1 gave the maximum bulb weight (110.80 g) in onion.
- positive
  Zn 25 kg + B 5 kg ha-1 gave the maximum bulb diameter (6.83 cm) in onion.
- positive
  Zn 25 kg + B 5 kg ha-1 gave the maximum yield hectare-1 (254.81 q) in onion.
- positive
  Zn 25 kg + B 5 kg ha-1 gave the maximum yield plot-1 (5.73 kg) in onion.
Effect of conjoint use of farmyard manure and fertilizers on yield and nutrient uptake by onion (Allium cepa) and soil fertility · 2017
- positive
  The same zinc and boron treatment produced 5.03 tonnes/ha dry matter yield, above NPK alone.
  compared with 100 % NPK alone
cites 1 paper here
Effect of Zinc, Boron and their Interaction on Growth and Yield of Onion under Temperate Conditions · 2018
- positive
  Zinc at 7.500 kg ha-1 gave a maximum total bulb yield of 275.50 q ha-1.
  compared with Z2 (5.000 kg ha-1)
- positive
  Zinc at 7.500 kg ha-1 gave a maximum average bulb weight of 82.64 g.
  compared with Z2 (5.000 kg ha-1)
Effect of Zinc and Boron on Growth, Yield and Quality of Onion (Allium cepa L.) cv. Agrifound Dark Red · 2018
- positive
  The Zn 25 kg + B 5 kg ha-1 combination gave the maximum onion yield plot-1 (5.32 kg).
- positive
  The Zn 25 kg + B 5 kg ha-1 combination gave the maximum onion bulb weight (110.80 g).
- positive
  The Zn 25 kg + B 5 kg ha-1 combination gave the maximum onion yield hectare-1 (236.59 q).
- positive
  The Zn 25 kg + B 5 kg ha-1 combination gave the maximum onion bulb diameter (6.83 cm).
cites 1 paper here
Influence of Integrated Nutrient Management (INM) on yield attributes and economics of kharif onion (Allium cepa L.) under loamy sand soils · 2018
- positive
  NPK, S and Zn treatment gave high net return.
- positive
  NPK, S and Zn treatment gave high total bulb yield.
- positive
  NPK, S and Zn treatment gave high B: C ratio.
- positive
  NPK, S and Zn treatment gave high bulb yield.
Maximizing Onion Seed Production Through Foliar Application of Zinc and Boron · 2019
- positive
  The combined zinc and boron rates maximized flowers per plant.
- positive
  The combined zinc and boron rates maximized seed weight per umbel.
- positive
  The combined zinc and boron rates maximized seed yield.
Effect of Sulphur and Zinc Containing Customized Fertilizers on Growth, Yield and Nutrient Uptake of Onion · 2020
- positive
  Balanced NPKS Zn gave the highest onion bulb weight and nutrient uptake.
  compared with recommended dose through customized fertilizer grade NPKS Zn + compensation of N and K through conventional fertilizer
- positive
  Balanced NPKS Zn gave the highest onion bulb yield, followed by customized fertilizer plus N and K compensation.
  compared with recommended dose through customized fertilizer grade NPKS Zn + compensation of N and K through conventional fertilizer
cited by 1 paper here
Effect of Zinc and Boron on Growth, Yield, Bulb quality and Nutrient uptake of Onion (Allium Cepa L.) cvBhima Super under Mid-Central Table Land Zone of Odisha · 2020
- positive
  Boron and zinc application provided better onion yield.
cites 2 papers here
Effect of Micronutrient Management Zinc and Boron on Crop Growth, Yield and Quality of Onion (Allium cepa L.) · 2021
- positive
  T9 recorded the highest bulb yield per plot (18.84).
- positive
  T9 recorded the highest bulb yield (t ha-1) (62.79).
cites 2 papers here
Response of organic manures with macro and micro nutrients on growth and yield of onion · 2022
- positive
  bulb length was highest under T10 (7.06), compared with the control minimum.
  compared with Control
- positive
  bulb diameter before curing was highest under T10 (6.167), compared with the control minimum.
  compared with Control
- positive
  bulb yield per plot was highest under T10 (2.979 kg), compared with the control minimum.
  compared with Control
- positive
  bulb yield per ha. was highest under T10 (297.93 q), compared with the control minimum.
  compared with Control
- positive
  bulb weight per plant was highest under T10 (99.32 gm), compared with the control minimum.
  compared with Control
- positive
  bulb diameter after curing was highest under T10 (5.263), compared with the control minimum.
  compared with Control
cites 1 paper here
Effect of Soil and Foliar Application of Plant Nutrients on Purple Blotch and Tip-Burn of Onion · 2023
- positive
  Those nutrients increased plant growth and onion yield.
Efficacy of Foliar Application of Micronutrients on Production of Onion Seed [Allium cepa L.] cv. Red Creol in Rukum West, Nepal · 2023
- positive
  Treatment 8 (Zn 375ppm + B 360ppm) gave the highest seed yield per plot of onion, 966.67 kg ha-1.
- positive
  Zinc and boron application increased total seed yield, seed yield per umbel and seed yield per plant of onion.
- positive
  Treatment 8 (Zn 375ppm + B 360ppm) gave the highest seed yield per plant of onion, 52.8 gm per plant.
- positive
  Treatment 8 (Zn 375ppm + B 360ppm) gave the highest seed yield per umbel of onion, 6.12 gm per umbel.
cites 1 paper here
Influence of fungicides, nutrients and bioagents on leaf twisting disease and yield of onion (Allium cepa L.) · 2023
- positive
  Nutrient and foliar fungicide regime gave higher seed yield (504.49 kg ha-1) than control (312.47 kg ha-1).
  compared with control
Effect of zinc on qualitative and quantitative traits of major vegetable crops · 2024
- positive
  Boron and zinc micronutrients applied to onion gave better yield and nutrient uptake.
Effect of micronutrients on growth and yield of onion under problematic soil environment · 2024
- positive
  The authors judged Zn plus B better for onion vegetative growth and yield.
- positive
  Zn plus B produced 13.38 t/ha bulb yield.
Effects of Indole Acetic Acid and Zinc Sprays (Traditional and Nano) on Onion Growth and Yield · 2025
- positive
  IAA at 100 mg L⁻¹ with traditional zinc significantly improved onion total plant yield (20.79 mg kg⁻¹).
Effect of Micronutrients Iron, Zinc and Boron on the Growth and Harvest of Onion (Allium cepa L.) cv. Agrifound Light Red · 2025
- positive
  Zinc at 25 kg/ha maximized leaf counts at 7.01 and 9.35.
Effete of Nitrogen Forms and Zinc Levels on Yield, Quality of Onion (Allium cepa L.) and Soil Fertility · 2025
- positive
  Zinc application at 1.5% with calcium nitrate potentially improves onion growth and yield

Papers reporting a negative result or no effect 3

Crop Responses to Some Micronutrients and Sodium on Sphagnum Peat Soil · 1964
- negative
  Repeated zinc applications depressed yield from the fifth through eleventh crops.
Response of Onion to NPK, S and Micronutrients · 2020
- negative
  FYM, NPK and sulfur, with or without boron and zinc, gave maximum bulb weight.
  About lacking this nutrient, so it counts the other way round
Growth, nutrient accumulation and yield of onion as a function of micronutrient fertilization · 2022
- no effect
  B, Cu and Zn application did not influence onion yield.
cites 2 papers here

A paper is on the positive side when any of its claims here is positive. Claims are grouped by organism, treatment and what was measured or targeted. Claims that compare genotypes are left out; a claim about lacking a nutrient counts the other way round in that nutrient’s question. “Results differ” marks a question where two model reviewers, reading both claims, accepted at least one pair of papers whose results differ.

zinc atom · Yield · Allium cepa (onion)

Papers whose results differ, checked claim by claim 1

How these papers cite each other

Papers reporting a positive result 33

Papers reporting a negative result or no effect 3

zinc atom on Allium cepa (onion) against other targets

zinc atom · yield on other organisms