iron atom · Yield · Triticum aestivum (wheat)

Results differ99 papers: 92 positive, 7 negative or no effect · 25 pairs of papers confirmed to differ

185 claims from these papers; 46 citations between them.

Papers whose results differ, checked claim by claim 25

25 pairs 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.

Effect of sulphur and micronutrients on growth, nutrient content and yield of wheat (Triticum aestivum L.). (2000)
no changeIron did not significantly influence wheat growth and yield.
Effect of time and concentration of nano-Fe foliar application on yield and yield components of wheat (2014)
increaseFoliar Fe at 2‰ increased grain yield by 12% over the control.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Response to iron and manganese application as affected by their availability in a Typic Natraqualf (1994)
no changeAdditional iron did not change wheat yield or iron or manganese uptake.
Effect of Application of Trace Element Fertilizer on Wheat Yield and Content of Trace Elements (2014)
increaseFe fertilizer application increased wheat yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Interaction of Iron with Copper, Zinc, and Manganese in Wheat as Affected by Iron and Manganese in a Calcareous Soil (2008)
no changesoil application of Fe-EDDHA did not significantly affect wheat dry matter yield.
Effect of iron nanopowder on the physiological resistance of winter wheat to low temperatures (2022)
increaseIron nanopowder increased winter wheat grain yield by 19.7%.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Magnetite and Zinc Oxide Nanoparticles Alleviated Heat Stress in Wheat Plants (2018)
increaseIron nanoparticles at 0.25 ppm enhanced yield of Gimmeza7 wheat.
Loading of zinc and iron in grains of different wheat genotypes in the calcareous and floodplain soils of Bangladesh (2023)
no changeFe addition had no effect on wheat grain yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effect of sulphur and micronutrients on growth, nutrient content and yield of wheat (Triticum aestivum L.). (2000)
no changeIron did not significantly influence wheat growth and yield.
Winter Wheat Grain Quality, Zinc and Iron Concentration Affected by a Combined Foliar Spray of Zinc and Iron Fertilizers (2019)
increaseHigh Fe treatments increased wheat yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effect of sulphur and micronutrients on growth, nutrient content and yield of wheat (Triticum aestivum L.). (2000)
no changeIron did not significantly influence wheat growth and yield.
Fortification of bread wheat with iron through soil and foliar application of iron-organic-complexes (2020)
increaseSoil application of Fe-OCs increased wheat yield and yield components.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →

Show 19 more pairs

Effect of sulphur and micronutrients on growth, nutrient content and yield of wheat (Triticum aestivum L.). (2000)
no changeIron did not significantly influence wheat growth and yield.
Enhancing iron concentration in bread wheat through Fe-EDTA fortification (2023)
increaseFe-EDTA applications increased wheat growth and yield traits over control.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effect of sulphur and micronutrients on growth, nutrient content and yield of wheat (Triticum aestivum L.). (2000)
no changeIron did not significantly influence wheat growth and yield.
Nanoparticles enhanced morpho-physiological growth of wheat in contaminated soil by restricting cadmium mobility and accumulation (2023)
increaseFe nanoparticles at 5 mg kg-1 Cd enhanced wheat grain yield by 78% compared with no nanoparticles.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effect of sulphur and micronutrients on growth, nutrient content and yield of wheat (Triticum aestivum L.). (2000)
no changeIron did not significantly influence wheat growth and yield.
Iron Biofortification of Wheat Grains with Various Iron Fertilization Techniques (2025)
increaseFe application significantly improved yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effect of sulphur and micronutrients on growth, nutrient content and yield of wheat (Triticum aestivum L.). (2000)
no changeIron did not significantly influence wheat growth and yield.
Effect of Application of Trace Element Fertilizer on Wheat Yield and Content of Trace Elements (2014)
increaseFe fertilizer application increased wheat yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effect of sulphur and micronutrients on growth, nutrient content and yield of wheat (Triticum aestivum L.). (2000)
no changeIron did not significantly influence wheat growth and yield.
Magnetite and Zinc Oxide Nanoparticles Alleviated Heat Stress in Wheat Plants (2018)
increaseIron nanoparticles at 0.25 ppm enhanced yield of Gimmeza7 wheat.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effect of sulphur and micronutrients on growth, nutrient content and yield of wheat (Triticum aestivum L.). (2000)
no changeIron did not significantly influence wheat growth and yield.
Effect of iron nanopowder on the physiological resistance of winter wheat to low temperatures (2022)
increaseIron nanopowder increased winter wheat grain yield by 19.7%.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Response to iron and manganese application as affected by their availability in a Typic Natraqualf (1994)
no changeAdditional iron did not change wheat yield or iron or manganese uptake.
Effect of time and concentration of nano-Fe foliar application on yield and yield components of wheat (2014)
increaseFoliar Fe at 2‰ increased grain yield by 12% over the control.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Response to iron and manganese application as affected by their availability in a Typic Natraqualf (1994)
no changeAdditional iron did not change wheat yield or iron or manganese uptake.
Magnetite and Zinc Oxide Nanoparticles Alleviated Heat Stress in Wheat Plants (2018)
increaseIron nanoparticles at 0.25 ppm enhanced yield of Gimmeza7 wheat.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Response to iron and manganese application as affected by their availability in a Typic Natraqualf (1994)
no changeAdditional iron did not change wheat yield or iron or manganese uptake.
Fortification of bread wheat with iron through soil and foliar application of iron-organic-complexes (2020)
increaseSoil application of Fe-OCs increased wheat yield and yield components.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Response to iron and manganese application as affected by their availability in a Typic Natraqualf (1994)
no changeAdditional iron did not change wheat yield or iron or manganese uptake.
Effect of iron nanopowder on the physiological resistance of winter wheat to low temperatures (2022)
increaseIron nanopowder increased winter wheat grain yield by 19.7%.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Response to iron and manganese application as affected by their availability in a Typic Natraqualf (1994)
no changeAdditional iron did not change wheat yield or iron or manganese uptake.
Enhancing iron concentration in bread wheat through Fe-EDTA fortification (2023)
increaseFe-EDTA applications increased wheat growth and yield traits over control.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Response to iron and manganese application as affected by their availability in a Typic Natraqualf (1994)
no changeAdditional iron did not change wheat yield or iron or manganese uptake.
Nanoparticles enhanced morpho-physiological growth of wheat in contaminated soil by restricting cadmium mobility and accumulation (2023)
increaseFe nanoparticles at 5 mg kg-1 Cd enhanced wheat grain yield by 78% compared with no nanoparticles.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Response to iron and manganese application as affected by their availability in a Typic Natraqualf (1994)
no changeAdditional iron did not change wheat yield or iron or manganese uptake.
Iron Biofortification of Wheat Grains with Various Iron Fertilization Techniques (2025)
increaseFe application significantly improved yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effect of time and concentration of nano-Fe foliar application on yield and yield components of wheat (2014)
increaseFoliar Fe at 2‰ increased grain yield by 12% over the control.
Loading of zinc and iron in grains of different wheat genotypes in the calcareous and floodplain soils of Bangladesh (2023)
no changeFe addition had no effect on wheat grain yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effect of Application of Trace Element Fertilizer on Wheat Yield and Content of Trace Elements (2014)
increaseFe fertilizer application increased wheat yield.
Loading of zinc and iron in grains of different wheat genotypes in the calcareous and floodplain soils of Bangladesh (2023)
no changeFe addition had no effect on wheat grain yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Effect of iron nanopowder on the physiological resistance of winter wheat to low temperatures (2022)
increaseIron nanopowder increased winter wheat grain yield by 19.7%.
Loading of zinc and iron in grains of different wheat genotypes in the calcareous and floodplain soils of Bangladesh (2023)
no changeFe addition had no effect on wheat grain yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Loading of zinc and iron in grains of different wheat genotypes in the calcareous and floodplain soils of Bangladesh (2023)
no changeFe addition had no effect on wheat grain yield.
Enhancing iron concentration in bread wheat through Fe-EDTA fortification (2023)
increaseFe-EDTA treatments increased wheat grain yield by 21.2 to 29.1%.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Loading of zinc and iron in grains of different wheat genotypes in the calcareous and floodplain soils of Bangladesh (2023)
no changeFe addition had no effect on wheat grain yield.
Nanoparticles enhanced morpho-physiological growth of wheat in contaminated soil by restricting cadmium mobility and accumulation (2023)
increaseFe nanoparticles at 5 mg kg-1 Cd enhanced wheat grain yield by 78% compared with no nanoparticles.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Loading of zinc and iron in grains of different wheat genotypes in the calcareous and floodplain soils of Bangladesh (2023)
no changeFe addition had no effect on wheat grain yield.
Iron Biofortification of Wheat Grains with Various Iron Fertilization Techniques (2025)
increaseFe application significantly improved yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →

How these papers cite each other

46 citations between these papers: 41 on the same side, 5 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 92

Iron and zinc fertilization with reference to the grain quality oftriticum aestivumL. · 1988
- positive
  Iron and zinc significantly increased grain yield per plant and 1000 grain weight.
- positive
  Iron and zinc significantly increased ear heads per tiller, ear head length and grains per ear with concentration.
cited by 5 papers here
GENOTYPIC DIFFERENCE IN SEED IRON CONTENT AND EARLY RESPONSES TO IRON DEFICIENCY IN WHEAT · 2002
- positive
  At zero iron supply N85021 produced more root and shoot dry matter than Z181.
  compared with Z181
Effect of Regulating Nitrogenous Fertilizer on Wheat Population and Production Earnings · 2003
- positive
  Doubling trace elements Fe, Zn, B and Mn increased wheat yield by 1147.5 kg/hm2.
- positive
  Increased P, K, Fe, Zn, B and Mn fertilizer content (except N) increased wheat yield by 945 kg/hm2.
- positive
  The same fertilizer application increased wheat yield by 754.5 kg/hm2.
Yield Effect and Benefit of the Wheat in Different Fertilizer Level,Quantity and Composition · 2004
- positive
  Doubling Fe, Zn, B and Mn at a middle fertilizer level increased wheat yield relative to the lower level.
  compared with the lower fertilizer
- positive
  Omitting N while adding P, K and trace elements increased yield by 5.51 kg/kg.
EFFECT OF MINERAL FERTILIZATION AND FOLIAR FEEDING WITH MICRONUTRJENTS APPLICATION ON GROWTH, YIELD AND ELEMENTAL COMPOSITION OF WHEAT PLANTS IN SANDY SOILS · 2004
- positive
  Combined NPK and micronutrients significantly increased wheat 100-grain weight and grain and straw yields.
  compared with control
- positive
  Combined NPK and micronutrient fertilization significantly increased wheat plant height, leaf area, and spike length versus control and NPK alone.
  compared with control
Improvement of wheat productivity in newly reclaimed soil in Egypt · 2005
- positive
  Fe, Zn and Mn addition significantly increased thousand grain weight and grain yield.
Response of different genotypes of winter wheat on combination application of nitrogen and zinc,iron fertilizers · 2007
- positive
  Zinc and iron fertilizer application increased seedling yield by 8.0% in winter wheat genotypes.
Response of Wheat Plants to Zinc, Iron, and Manganese Applications and Uptake and Concentration of Zinc, Iron, and Manganese in Wheat Grains · 2009
- positive
  The greatest thousand-grain weight followed 80 kg Zn plus foliar Fe.
cites 1 paper herecited by 6 papers here
Amendment of Copper Toxicity in Alluvial Soil Using Iron: Effect on Growth and Yield of Triticum aestivum L. · 2010
- positive
  Iron plus copper increased wheat grain yield.
Agronomic bio-fortification of wheat (Triticum aestivum L.) through iron and zinc enriched organics · 2011
- positive
  Enriched organics increased wheat yield.
  compared with direct
- positive
  Enriched organics increased wheat yield.
  compared with no application of the micronutrients
cited by 2 papers here
Effect of different microelement treatment on wheat ( triticum aestivum ) growth and yield · 2012
- positive
  Foliar Fe+Mn application had the highest positive effect on yield components and grain yield of wheat.
cited by 3 papers here
Effects of Foliar Spraying Microelement Fertilizers on Yield and Quality of Winter Wheat · 2012
- positive
  Foliar iron increased wheat yield without a reported significant increase.
IMPACT OF FOLIAR SPRAYING OF SOME ORGANIC SUBSTANCES AND MICRONUTRIENTS ON WHEAT GROWN ON CLAYEY SOIL · 2012
- positive
  Humic acid, zinc, and iron spraying raised grain nitrogen and phosphorus percentages.
Effects of Iron and Zinc Spray on Yield and Yield Components of Wheat (Triticum Aestivum L.) in Drought Stress · 2013
- positive
  Iron increased spike count from 49.51 to 51.73 relative to control.
- positive
  Iron increased thousand kernel weight from 45.71 to 46.83 grams relative to control.
  compared with control treatment
cited by 3 papers here
Effect of foliar application of nano-iron oxidase, iron chelate and iron sulphate rates on yield and quality of wheat. · 2013
- positive
  Higher iron sulphate and iron chelate rates increased harvest index, thousand grain weight and chlorophyll content.
cited by 1 paper here
Effects of potassium and iron nutrient elements on the quantity yield of Shariar wheat cultivar in Boyerahmad Reign · 2013
- positive
  Iron and potassium spray at stem elongation increased biological yield of wheat (14%) compared with spraying at grain filling.
  compared with spray solution grain filling time
- positive
  Iron and potassium spray at stem elongation increased grain number per spike of wheat (15%) compared with spraying at grain filling.
  compared with spray so lution on grain filling time
Production potential and nutrient uptake of wheat (Triticum aestivum) as affected by organic sources of nutrients and micronutrients · 2014
- positive
  Foliar Fe and Mn significantly improved wheat yield attributes and yields.
cites 1 paper herecited by 1 paper here
Effect of time and concentration of nano-Fe foliar application on yield and yield components of wheat · 2014
- positive
  Foliar Fe at tillering gave 5.19% more grain yield than foliar Fe at stem elongation.
  compared with foliar application of Fe at stem elongation
- positive
  Foliar Fe at 2‰ increased grain yield by 12% over the control.
  compared with control
- positive
  Foliar Fe at tillering+stem elongation gave 9.17% more grain yield than foliar Fe at stem elongation.
  compared with foliar application of Fe at stem elongation
cites 2 papers herecited by 1 paper here
Effect of Foliar Application of Iron on Morpho - physiological Traits of Wheat under Drought Stress · 2014
- positive
  Fe spraying increased wheat no. of fertile tiller by 6%.
  compared with spraying with pure water
cited by 2 papers here
Effect of Iron Deficiency Stress on Growth and Development of Wheat in Nutrient Solution · 2014
- positive
  Iron deficiency reduced wheat kernel number per spike.
  About lacking this nutrient, so it counts the other way round
- positive
  Iron deficiency reduced wheat kernel length, width, and thickness.
  About lacking this nutrient, so it counts the other way round
Effect of Application of Trace Element Fertilizer on Wheat Yield and Content of Trace Elements · 2014
- positive
  Fe fertilizer application increased wheat yield.
Effect of Cu, Fe, Mn, Zn Foliar Application on Productivity and Quality of Some Wheat Cultivars (Triticum aestivum L.) · 2014
- positive
  Combined micronutrient foliar application gave the highest wheat grain yield in the two seasons: 6.270 and 6.400 ton ha -1.
- positive
  Combined micronutrient foliar application gave the highest wheat spike length in the two seasons: 9.32 and 9.56 cm.
- positive
  Combined micronutrient foliar application gave the highest wheat spikes number m -2 in the two seasons: 279.33 and 282.9.
- positive
  Combined micronutrient foliar application gave the highest wheat straw yield in the two seasons: 12.58 and 12.77 ton ha -1.
- positive
  Combined micronutrient foliar application gave the highest wheat harvest index in the two seasons: 33.21 and 33.36 %.
- positive
  Combined micronutrient foliar application gave the highest wheat number of spikelets spike -1 in the two seasons: 16.26 and 16.37.
- positive
  Combined micronutrient foliar application gave the highest wheat biological yield in the two seasons: 18.84 and 19.17 ton ha -1.
- positive
  Combined micronutrient foliar application gave the highest wheat number of grains spike -1 in the two seasons: 39.73 and 40.98.
- positive
  Combined micronutrient foliar application gave the highest wheat 1000-grain weight in the two seasons: 42.50 and 43.26 g.
- positive
  Combined micronutrient foliar application gave the highest wheat tillers number m -2 in the two seasons: 318.4 and 329.3.
cites 1 paper here
Effect of Wheat Grains Soaking in Micro-element Solutions on Yield and its Components · 2014
- positive
  Fe+Mn+Zn produced maximum plant height, spike length, seed weight, spikelet and spike numbers, grain yield, and straw yield in both seasons.
Effect of some micronutrients on growth and yield of wheat and its leaves and grain content of iron and boron · 2015
- positive
  That combined treatment gave maximum grain yield of 518 gm m -2.
cites 1 paper here
Effect of Super-optimal Dose of NPK Fertilizers on Nutrient Harvest Index, Uptake and Soil Fertility Levels in Wheat Crop under a Maize (Zea maysL.)-Wheat (Triticum aestivumL. Cropping System) · 2015
- positive
  Foliar iron application increased the iron harvest index by 9-20%.
cites 1 paper here
Interaction Effect of Iron and Nickel on Growth and Yield of Wheat Grown on Typic ustochrepts Soil · 2015
- positive
  Iron at 10 mg kg−1 significantly increased wheat height and spike length against control.
  compared with control (Fe0)
- positive
  Iron at 10 mg Fe kg−1 produced the significantly highest grain and total yield.
EFFICIENCY OF Fe AND Mn APPLICATION METHODS AND LEVELS ON GROWTH, YIELD, YIELD COMPONENTS AS WELL AS NUTRIENT CONTENT O F WHEAT PLANTS · 2016
- positive
  Iron and manganese treatments exceeded the check for wheat growth and yield components, except thousand-grain weight.
  compared with check treatment
Nutrient Management on Crop Productivity and Changes in Soil Organic Carbon and Nutrient Content of Wheat Crop under North West Indo-Gangetic Plains of India · 2017
- positive
  Adding 100% NPK + FYM + PSB + Azotobactor+ Zn + Fe + Mn significantly increased growth and yield attributes of wheat.
Integration of Organic and Mineral Nutrient Sources Enhances Wheat Productivity, Soil Health and Profitability in western Uttar Pradesh · 2017
- positive
  The 100% NPK + FYM + Azotobactor + Zn + Mn + Fe treatment gave more wheat productivity and remunerative returns.
- positive
  The 100% NPK + FYM + PSB + Azotobactor + Zn + Fe + Mn treatment gave significantly higher wheat grain yield, 58.40 q/ha.
- positive
  The 100% NPK + FYM + PSB + Azotobactor + Zn + Fe + Mn treatment gave significantly higher plant height, dry matter accumulation and effective tillers.
Environmental Impact for Applications of Neem Cake Coated Urea and Nano Iron Foliar on Rationalization of Chemical Nitrogen Fertilizers and Wheat Yield · 2017
- positive
  Coated urea with foliar nano iron gave the highest wheat grain yield increase versus uncoated urea.
  compared with uncoated urea
cites 1 paper here
EFFECT OF NITROGEN, PHOSPHORUS AND IRON FERTILIZATION ON PRODUCTVITY AND MINERAL CONTENTS OF WHEAT · 2017
- positive
  Straw yield was highest under 285 Kg N, chelated iron and 31 Kg P per hectare.
- positive
  Grain yield was highest under 285 Kg N, chelated iron and 31 Kg P per hectare.
Effect of Sulphur, Zinc, Boron and Iron on Growth and Yield of Wheat [Triticum aestivum L.] · 2018
- positive
  The combined NPK, FYM and micronutrient treatment was superior for plant height and yield attributes.
- positive
  The combined NPK, FYM and micronutrient treatment produced maximum grain yield of 53.05 q/ha.
Magnetite and Zinc Oxide Nanoparticles Alleviated Heat Stress in Wheat Plants · 2018
- positive
  Iron nanoparticles at 0.25 ppm enhanced yield of Gimmeza7 wheat.
Effect of foliar application of iron and zinc on nutrient uptake and grain yield of wheat under different irrigation regimes · 2018
- positive
  Foliar iron and zinc increased wheat grain yield.
cites 1 paper herecited by 1 paper here
Influences of organic and inorganic fertilizers on productivity and soil fertility of wheat (Triticum aestivum L.) in Typic Ustochrept soil of Uttar Pradesh · 2018
- positive
  The integrated treatment gave significantly higher growth and yield attributes.
- positive
  The integrated fertilizer treatment gave greater productivity and residual soil fertility.
Winter Wheat Grain Quality, Zinc and Iron Concentration Affected by a Combined Foliar Spray of Zinc and Iron Fertilizers · 2019
- positive
  High Fe treatments increased wheat yield.
cites 2 papers herecited by 6 papers here
Soil Fertility Status after Harvest of Wheat (Triticum aestivum L) in Salt Affected Soils of Gujarat as Influenced by Iron and Zinc Enriched FYM · 2019
- positive
  Enriched farmyard manure plus recommended fertilizer significantly increased wheat grain yield over control.
  compared with control
- positive
  The same treatment significantly increased wheat straw yield over control.
  compared with control
Effect of Iron and Zinc Enriched FYM on Growth, Yield and Quality of Wheat (Triticum aestivum L) in Salt Affected Soils of Gujarat · 2019
- positive
  T8 significantly increased effective tillers, spike length and spike number over T1.
  compared with T1
Response of Chemical Fertilizers and Micronutrients on Yield, Yield Attributes and Economics under Maize-Wheat Cropping System · 2019
- positive
  The combined fertilizer treatment gave the highest wheat crop yield of 59.26 q/ha.
Superimposition effect of micronutrients, organic manure and microbial inoculants over NPK does on wheat (Triticum aestivum L.) · 2019
- positive
  Combined NPK+FYM+S+Zn+B+Fe gave the highest gross income in both seasons.
- positive
  Combined NPK+FYM+S+Zn+B+Fe gave the highest grain yield in both seasons.
- positive
  Combined NPK+FYM+S+Zn+B+Fe gave the highest net income in both seasons.
Effect iron chelated and potassium fertilization on growth and yield of wheat Triticum aestivum L. · 2019
- positive
  The combined treatment gave the highest grain yield versus control.
  compared with control treatment
- positive
  Combined 100 mg Fe and 100 kg K2O gave the highest spike number versus control.
  compared with control treatment
- positive
  The combined treatment gave the highest number of grains per spike versus control.
  compared with control treatment
Foliar applied iron and zinc improves the growth, physiological and yield related traits of wheat under drought · 2019
- positive
  Combined iron and zinc significantly increased seed yield to 5350 kg/ha under drought.
- positive
  Combined iron and zinc increased spike length to 16 cm under drought.
- positive
  Combined iron and zinc significantly increased 1000 grain weight to 40 g under drought.
cites 1 paper here
Yield and phenological indices of wheat as affected by exogenous fertilization of Zinc and Iron · 2020
- positive
  At 10 kg Fe ha-1, grain yield reached 3802 kg ha-1.
- positive
  Zn and Fe levels significantly affected yield and yield components.
cites 2 papers herecited by 1 paper here
Biofortification with Zinc and Iron Improves the Grain Quality and Yield of Wheat Crop · 2020
- positive
  Soil or foliar application of FeSO4 and ZnSO4, alone or combined, increased plant height, tiller number and spike length of wheat.
- positive
  The same applications increased spikelets per spike, grains per spike and thousand grain weight of wheat.
- positive
  The same applications increased economical yield, biological yield and harvest index of wheat.
cites 2 papers herecited by 4 papers here
EFFECT OF PRECEDING CROPS AND FOLIAR MICRONUTRIENTS APPLICATIONS ON YIELD AND YIELD COMPONENTS OF BREAD WHEAT UNDER SANDY SOIL CONDITIONS · 2020
- positive
  Foliar application of the Fe + Mn + Zn mixture gave the highest yield and yield components in wheat.
- positive
  Wheat grown after clover with foliar Fe + Mn + Zn gave the maximum net income compared with the other treatments.
  compared with the other treatments
The efficiency of some microelement compositions in spring wheat cultivation system · 2020
- positive
  Biogenic iron and biofungicide increased yield by 9.8-12.4%.
Fortification of bread wheat with iron through soil and foliar application of iron-organic-complexes · 2020
- positive
  Soil application of Fe-OCs increased wheat yield and yield components.
cites 1 paper here
Effect of Iron and Zinc Enriched Organics on Growth, Yield Attributes and Yield of Wheat in Loamy Sand · 2020
- positive
  Enriched vermicompost with RDF significantly improved grain and straw yield relative to RDF control.
  compared with control (RDF)
- positive
  Enriched vermicompost with RDF significantly improved number of grains per earhead relative to RDF control.
  compared with control (RDF)
- positive
  Enriched vermicompost with RDF significantly improved number of effective tillers per meter row length relative to RDF control.
  compared with control (RDF)
- positive
  Enriched vermicompost with RDF significantly improved 1000 grain weight relative to RDF control.
  compared with control (RDF)
cites 1 paper here
Study the effect of iron, zinc and manganese foliar application on morphological and agronomic traits of bread wheat (Chamran cultivar) under different irrigation regimes · 2021
- positive
  Iron, zinc and manganese foliar application increased number of spikes per m-2 under water stress.
- positive
  Iron, zinc and manganese foliar application increased number of grain per spike under water stress.
- positive
  Iron, zinc and manganese foliar application increased number of tillers per m-2 under water stress.
- positive
  Iron, zinc and manganese foliar application increased 1000-seed weight under water stress.
- positive
  Iron, zinc and manganese foliar application increased grain yield under water stress.
- positive
  Iron, zinc and manganese foliar application increased spike length under water stress.
Response of Iron and Zinc on Yield Attributes, Yield and Economics of Wheat (Triticum aestivum L.) · 2021
- positive
  Zinc and iron treatment combinations significantly increased wheat yield attributes, yield, net returns and benefit cost ratio.
cites 1 paper here
Cycocel, iron and zinc effects on yield and physiological characteristics of wheat under drought stress conditions · 2021
- positive
  Iron + zinc foliar application gave the highest wheat seed yield, 5543 kg ha−1, compared with 4638 kg ha−1 for the control.
  compared with control treatment (pure water)
cites 2 papers herecited by 1 paper here
Growth and Yield of Wheat as Influenced by Micronutrients Under Water Deficit Condition · 2021
- positive
  Zinc and iron mitigated drought effects and improved wheat growth and yield.
- positive
  Foliar application of 5% iron solution was the most effective micronutrient treatment for wheat growth and yield under water deficit.
  compared with micronutrients
cites 1 paper here
Testing of macro- and micronutrient nanoparticles on grain crops · 2022
- positive
  Biogenic iron increased yield by 0,16-0,23 t/ha under standard crop protection.
- positive
  Biogenic iron increased yield by 0,5-0,6 t/ha or 23% under complex crop protection versus control.
  compared with control
Effect of iron nanopowder on the physiological resistance of winter wheat to low temperatures · 2022
- positive
  Iron nanopowder increased grains per spikelet by 14.5% relative to control.
  compared with control
- positive
  Iron nanopowder increased winter wheat grain yield by 19.7%.
- positive
  Iron nanopowder increased thousand-grain weight by 7.5%.
Iron and zinc micronutrients and soil inoculation of Trichoderma harzianum enhance wheat grain quality and yield · 2022
- positive
  The approach increased spike length, grain mass and biomass.
cites 2 papers herecited by 2 papers here
Assessment of Zinc, Boron, and Iron Foliar Application on Wheat Yield and Yield Components Under Drought Stress · 2022
- positive
  Fe + Zn + B increased wheat seed yield by 17% compared with the control treatment.
  compared with control treatment
cites 1 paper here
Combined foliar application of Zn and Fe increases grain micronutrient concentrations and alleviates water stress across diverse wheat species and ploidal levels · 2022
- positive
  Combined zinc and iron spray significantly increased yield and alleviated water-stress yield loss.
- positive
  Hexaploid wheat had the highest yield increase from combined spray under both moisture conditions.
cites 4 papers here
The combined Application of Iron and Phosphate Solubilizing Bacteria to enhance Wheat (Triticum aestivum L.) growth and yield · 2022
- positive
  Local and imported iron and phosphate biofertilizers significantly increased the yield components of wheat plants in a pot experiment.
Response of wheat varieties, Triticum aestivum L., to spraying by iron nano-fertilizer · 2022
- positive
  Baraka sprayed at 3 g L-1 gave the highest average grain yield of 5.800 ton ha-1.
BIO FORTIFICATION WITH IRON AND ZINC IMPROVES THE GRAIN QUALITY AND YIELD ATTRIBUTES OF WHEAT CROP · 2022
- positive
  Two 0.3% Fe sprays produced the highest yield of 4.9 t ha-1.
Effects of Iron, Phosphorus and Microbial Inoculum On Yield and Quality of the Grain of Wheat (Triticum Aestivum L.) · 2023
- positive
  Iron foliar and bacterial application produced the highest grain yield of 516 g/m2.
- positive
  Phosphorus in the presence of iron increased wheat grain yield.
- negative
  No iron and phosphorus treatment produced the lowest grain yield of 435 g/m2.
Citrate-coated cobalt ferrite nanoparticles for the nano-enabled biofortification of wheat · 2023
- positive
  Iron supplied as nanoparticles may improve wheat economic yield.
The Copper Metal and Magnetite Nanoparticles Conjugated with SalicylicAcid Composite Stimulated Wheat Defense Mechanism and AffectedCellular Components under Heat Stress · 2023
- positive
  Fe NPs+SA at 0.5 ppm enhanced yield quantity in Misr1 and Gimmeza11.
Biofortification effect of FYM zinc and iron on yield and quality of wheat (Triticum aestivum L.) · 2023
- positive
  Combined zinc, iron and FYM produced straw yield of 71.86 and 75.18 q h-1 in two years.
- positive
  Combined zinc, iron and FYM produced grain yield of 53.95 and 56.95 q h-1 in two years.
Effect of various foliar applied micronutrients (Zn+Fe+Cu+B) on growth and yield of wheat under Faisalabad condition · 2023
- positive
  The Zn+Fe+Cu+B combination substantially improved spike length, number of spikelets and number of grains of wheat compared with other treatments.
  compared with other treatments
- positive
  The Zn+Fe+Cu+B combination substantially improved 1000-grain weight, grain yield and harvest index of wheat compared with other treatments.
  compared with other treatments
Iron-modified biochar improves plant physiology, soil nutritional status and mitigates Pb and Cd-hazard in wheat (Triticum aestivum L.) · 2023
- positive
  2% Fe-BC increased grains by 148%.
- positive
  2% Fe-BC lowered grains by 76.3%.
Enhancing iron concentration in bread wheat through Fe-EDTA fortification · 2023
- positive
  Fe-EDTA treatments increased wheat grain yield by 21.2 to 29.1%.
- positive
  Fe-EDTA applications increased wheat growth and yield traits over control.
  compared with control treatment
- no effect
  Most growth and yield parameters did not differ significantly among Fe-EDTA application methods.
  compared with different Fe-EDTA application methodsNo difference from an alternative treatment
cites 2 papers here
Nanoparticles enhanced morpho-physiological growth of wheat in contaminated soil by restricting cadmium mobility and accumulation · 2023
- positive
  Fe nanoparticles at 5 mg kg-1 Cd enhanced wheat grain yield by 78% compared with no nanoparticles.
  compared with control (no NPs application)
Effect of Super-optimal Dose of NPK Fertilizers on Nutrient Harvest Index, Uptake and Soil Fertility Levels in Wheat Crop under a Maize (Zea mays L.)-Wheat (Triticum aestivum L. Cropping System) · 2023
- positive
  Foliar iron increased the iron harvest index by 9-20%.
Impact of Organic and Inorganic Plant Growth Promoters on Growth Indices and Yield of Wheat (Triticum aestivum L.) Varieties · 2024
- positive
  The mixture of micronutrients gave the highest grain yield.
  compared with all other treatment
- positive
  The mixture of micronutrients gave the highest number of tillers.
  compared with all other treatment
Foliar application of iron and zinc improves morpho-physiological and agronomic grain bioforti ication of wheat (Triticum aestivum L.) under restricted irrigation conditions · 2024
- positive
  Zn and Fe foliar application improved grains per spike, 1000 grain weight and biological yield of wheat compared with control.
  compared with control
- positive
  Zn and Fe foliar application increased grain yield of wheat by 1.0% and 0.5% over control.
  compared with control
Agronomy biofortification of wheat grain in a saline and calcareous soil · 2024
- positive
  The reported thousand kernel weight increase under the proposed fertilizer regime was 8%.
- positive
  120 kg Zn ha−1 plus 5 kg Fe ha−1 improved thousand kernel weight by 9.1% over control.
  compared with control treatment
- positive
  120 kg Zn ha−1 plus 5 kg Fe ha−1 improved grain yield by 23.4% over control.
  compared with control treatment
- positive
  The reported yield increase under the proposed fertilizer regime was 619 kg ha−1.
cites 7 papers here
Synergistic effects of microbial inoculation, different forms of iron application, and phosphorus on wheat growth and nutrient uptake in alkaline soil · 2024
- positive
  Combining AMF + TSP with foliar iron gave the highest grain yield.
cites 1 paper here
Application of additional substances in the complex of protective measures of spring wheat · 2024
- positive
  Humic preparation variants and mixtures raised ear weight by 1.0 g.
- positive
  Biogenic iron alone and mixed with Rostock increased spikelet number to 11-13.4.
The Effect of Spraying Iron, Zinc and Copper Nanoparticles on the Components of the Crop of Two Cultivars of Bread Wheat · 2024
- positive
  T9 produced the highest grain yield, 7.891 ton hectar -1.
  compared with other additives
- positive
  T9 produced the highest tiller count, 767.17.
  compared with other additives
- positive
  T9 produced the highest biological yield, 23.533 ton hectar -1.
  compared with other additives
Assessment of Plant Growth Promoters on Growth Characteristics, Yield Attributes and Yield of Wheat (Triticum aestivum L.) Varieties in Central Plain Zone of Uttar Pradesh, India · 2024
- positive
  Micronutrient spray gave maximum 425.13 tillers per square metre at maturity.
- positive
  Micronutrient spray gave maximum straw yield of 7072.20 kg ha-1.
- positive
  Micronutrient spray gave maximum grain yield of 4572.17 kg ha-1.
Response of Five Wheat Cultivars (Triticum aestivum L.) To Urea Fertilizer Levels and Some Micronutrients Application at North Delta of Egypt. · 2024
- positive
  The highest nitrogen rate and M2 micronutrients significantly increased wheat grains per spike to 64.5.
- positive
  The highest nitrogen rate and M2 micronutrients significantly increased wheat grain yield to 2.211tons fed.-1.
- positive
  The highest nitrogen rate and M2 micronutrients significantly increased wheat fertile tillers to 265 per square metre.
Short‐Term Benefits of Tillage and Agronomic Biofortification for Soybean–Wheat Cropping in Central India · 2024
- positive
  Foliar Zn and Fe produced 14.2% higher soybean equivalent yield than control.
  compared with control
Effect of zinc and iron fortification on growth and yield of wheat (Triticum aestivum L.) · 2024
- positive
  seed yield
- positive
  Number of effective tillers/plant
- positive
  1000-seed weight
- positive
  Number of total tillers/plant
- positive
  straw yield
Sustainable Iron Enrichment in Wheat: Leveraging Fertilization and Microbial Solubilization for Higher Yield and Nutrient Density · 2025
- positive
  TRB-29-116 with foliar Fe and FeSB enhanced wheat grain yield.
Effect of different levels of nitrogen, zinc and iron on yield of wheat · 2025
- positive
  The 175% N + Zn + Fe treatment produced maximum grain yield.
  compared with T6-150% N + Zn + Fe
Effect of Biosynthesized Iron Nanoparticles on Wheat Production (Triticum aestivum L.) · 2025
- positive
  Actinobacteria-derived iron nanoparticle treatment gave significantly higher 1,000 grain weight of 42.19 g.
- positive
  Actinobacteria-derived iron nanoparticle treatment gave significantly higher total dry matter production of 368.34 g m row length-1.
- positive
  Actinobacteria-derived iron nanoparticle treatment gave significantly higher grain yield of 4563 kg ha-1.
- positive
  Actinobacteria-derived iron nanoparticle treatment gave significantly higher number of tillers per meter row length of 173.00.
- positive
  Actinobacteria-derived iron nanoparticle treatment gave significantly higher grain weight per spike of 1.80 g.
- positive
  Actinobacteria-derived iron nanoparticle treatment gave significantly higher productive spikes per square meter of 253.67 m-2.
- positive
  Actinobacteria-derived iron nanoparticle treatment gave significantly higher number of grains per spike of 48.23.
- positive
  Actinobacteria-derived iron nanoparticle treatment gave significantly higher straw yield of 6357 kg ha-1.
Genotypic Variability in Root System Architecture and Its Association With Fe and Zn Biofortification in Wheat ( Triticum aestivum L.) · 2025
- positive
  Combined application of Fe and Zn significantly improved yield attributes of wheat.
cites 1 paper here
Effects of iron, zinc, and silicon nanoparticles on morpho-physiological growth, yield, and quality of wheat (Triticum aestivum L.) under drought stress · 2025
- positive
  Fe and Zn nanoparticles improved wheat flour yield by 4.7% under drought stress.
- positive
  Fe and Zn nanoparticles increased wheat tiller number by 26.1% under drought stress.
Effect of soil fertility management practices on dry matter accumulation of wheat (Triticum aestivum L.) in the Varanasi region of Uttar Pradesh · 2025
- positive
  The 100% RDF, zinc and iron treatment gave the highest wheat dry matter accumulation at 30 and 60 DAS relative to the control and 75% RDF.
  compared with the control and the application of 75% RDF
Role of zinc application from organic and biological sources on wheat (Triticum aestivum L.) productivity under semi-arid conditions · 2025
- positive
  Combined NPK, FYM, ZnSO₄, Mn and Fe higher productivity.
- positive
  Combined NPK, FYM, ZnSO₄, Mn and Fe higher profitability.
Influence of boron and iron applications on growth components, yield and yield components of wheat crop in Himachal Pradesh · 2025
- positive
  Adding iron and boron with 100% or 75% RDF significantly improved wheat growth and yield relative to control.
  compared with control
Iron Biofortification of Wheat Grains with Various Iron Fertilization Techniques · 2025
- positive
  Fe application significantly improved yield.
  compared with control
- positive
  Fe-coated urea gave the highest grain yield, 5533.3 kg ha⁻¹.
  compared with control
- positive
  Fe-coated urea gave the highest grains per spike, 60.2.
  compared with control
cites 1 paper here
Impact of Fe-EDTA, EDTA, and Zn Applications on Fe and Zn Levels and Biomass Production in Bread Wheat · 2025
- positive
  Fe and Zn fertilization increased biomass and nutrient concentrations.
- positive
  The combined high Fe-EDTA and Zn treatment raised yield 43% over control.
  compared with control
cites 3 papers here
Machine learning-based evaluation of seed priming and biostimulant applications in rainfed wheat · 2026
- positive
  The 0.3% priming and nano foliar combination gave maximum grain production of 1,648 kg ha −1.
Effect of sole and combined application of sulphatic micronutrients fertilisers on growth traits of wheat (Triticum aestivum L.) · 2026
- positive
  Combined Zn, Fe, and Cu fertilization significantly enhanced height, tiller number, and dry matter versus control and individual applications.
  compared with control and individual applications
Integrated nutrient management enhances soil physico-chemical properties, yield and grain quality of wheat (Triticum aestivum L.) · 2026
- positive
  Integrated nutrient treatment T10 significantly improved grain yield.

Papers reporting a negative result or no effect 7

Response to iron and manganese application as affected by their availability in a Typic Natraqualf · 1994
- no effect
  Additional iron did not change wheat yield or iron or manganese uptake.
Effect of sulphur and micronutrients on growth, nutrient content and yield of wheat (Triticum aestivum L.). · 2000
- no effect
  Iron did not significantly influence wheat growth and yield.
cited by 1 paper here
Interaction of Iron with Copper, Zinc, and Manganese in Wheat as Affected by Iron and Manganese in a Calcareous Soil · 2008
- no effect
  foliar application of Fe sulfate did not significantly affect wheat dry matter yield.
- no effect
  soil application of Fe-EDDHA did not significantly affect wheat dry matter yield.
cited by 2 papers here
Effects of Iron on the Wheat Crop (Triticum aestivum L.) by Uptake of Nitrogen, Phosphorus and Potassium · 2012
- no effect
  Severe iron decrement did not affect crop growth or yield contributing parameters.
cites 2 papers herecited by 3 papers here
Maximizing wheat yield through integrated use of farmyard manure and fertilizers · 2016
- no effect
  Micronutrients (Zn, Cu, Fe and Mn) had no significant effect on wheat yield.
Loading of zinc and iron in grains of different wheat genotypes in the calcareous and floodplain soils of Bangladesh · 2023
- no effect
  Fe addition had no effect on wheat grain yield.
cited by 1 paper here
New Fertilisers with Innovative Chelates in Wheat Cultivation · 2024
- negative
  Salmag with Fe had a slightly weaker grain yield effect than pure Salmag.
  compared with pure Salmag®

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.

iron atom · Yield · Triticum aestivum (wheat)

Papers whose results differ, checked claim by claim 25

How these papers cite each other

Papers reporting a positive result 92

Papers reporting a negative result or no effect 7

iron atom on Triticum aestivum (wheat) against other targets

iron atom · yield on other organisms