nitrapyrin · Yield · Zea mays (maize)
70 claims from these papers; 49 citations between them.
Papers whose results differ, checked claim by claim 79
79 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. 50 of them are shown here, as many different papers as possible.
- Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
Nitrapyrin Improves Grain Yield and Nitrogen Use Efficiency of Summer Maize Waterlogged in the Field (2016)increaseNitrapyrin raised DH605 grain yield by 22% under waterlogging.
What separates themSituation: not stated · waterloggingCompare the two papers → - Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching (1993)
no changeNitrapyrin had no statistically significant effect on yield.
Response of Corn to Preplant Applications of Nitrogen and to Nitrogen Plus Nitrapyrin (1992)increasePrior nitrapyrin use raised yield in the residual year.
What separates themTest system: controlled environment · fieldCompare the two papers → - Can We Reduce Rainfed Maize (Zea maysL.) Nitrogenous Fertilizer Application Rate with Addition of Nitrapyrin? (2016)
no changeAdding nitrapyrin had no effect on yield under spring fertilizer nitrogen management.
Nitrapyrin Mitigates Nitrous Oxide Emissions, and Improves Maize Yield and Nitrogen Efficiency under Waterlogged Field (2022)increaseNitrapyrin increased yield by 34%
What separates themTest system: field · controlled environmentCompare the two papers → - Nitrification Inhibition by Nitrapyrin and Volatile Sulfur Compounds (1985)
increaseNitrapyrin increased corn yield only in the fall N application on Pratt loamy fine sand.
Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Approaches to Management Zone Definition for Use of Nitrification Inhibitors (2003)
increaseUniform nitrapyrin increased yield in a wet year.
NITRIFICATION INHIBITORS: EFFECTS ON NITROGEN LOSS FROM SOILS AND CORN YIELDS (1981)no changeNitrapyrin at 25 mg/liter added to spring-applied liquid swine manure had no effect on yields.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Use of Nitrification Inhibitors and Ammonia Enrichment with Swine Manure Applications (1986)
increaseFall addition of 0.56 kg/ha nitrapyrin increased corn yields over manure alone.
Tillage and Nitrogen Source Impacts on Relationships between Nitrous Oxide Emission and Nitrogen Recovery Efficiency in Corn (2019)no changeNitrapyrin did not increase corn grain yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
Show 44 more pairs
- Interrelationship of nitrogen nutrition with maize (Zea mays) grain yield, nitrogen use efficiency and grain quality (1992)
increaseNitrapyrin increased yield of high N-responsive hybrids at all nitrogen levels.
Nitrogen‐15 Evaluation of Fall‐Applied Anhydrous Ammonia: I. Efficiency of Nitrogen Uptake by Corn (2019)decreaseNitrapyrin significantly reduced grain yield at one site.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching (1993)
no changeNitrapyrin had no statistically significant effect on yield.
Effects of Nitrapyrin on Corn Yields and Recovery of Ammonium‐N at 18 Site‐Years in Iowa (1990)increaseNitrapyrin significantly increased corn yields at only two of the 72 rate-site-years
What separates themTest system: controlled environment · fieldCompare the two papers → - Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching (1993)
no changeNitrapyrin had no statistically significant effect on yield.
Inhibition of Denitrification by Nitrapyrin with Field-grown Sweet Corn1 (1981)increaseNitrapyrin significantly increased sweet corn yield.
What separates themTest system: controlled environment · fieldCompare the two papers → - Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
Approaches to Management Zone Definition for Use of Nitrification Inhibitors (2003)increaseUniform nitrapyrin application increased maize yield in a wet year.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
Nitrapyrin Mitigates Nitrous Oxide Emissions, and Improves Maize Yield and Nitrogen Efficiency under Waterlogged Field (2022)increaseNitrapyrin increased yield by 34%
What separates themTest system: field · controlled environmentCompare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
Nitrapyrin Improves Grain Yield and Nitrogen Use Efficiency of Summer Maize Waterlogged in the Field (2016)increaseNitrapyrin raised DH605 grain yield by 22% under waterlogging.
What separates themSituation: not stated · waterloggingCompare the two papers → - Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching (1993)
no changeNitrapyrin had no statistically significant effect on yield.
Nitrapyrin Improves Grain Yield and Nitrogen Use Efficiency of Summer Maize Waterlogged in the Field (2016)increaseNitrapyrin raised DH605 grain yield by 22% under waterlogging.
What separates themTest system: controlled environment · fieldSituation: not stated · waterloggingCompare the two papers → - Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching (1993)
no changeNitrapyrin had no statistically significant effect on yield.
NITRIFICATION INHIBITORS: EFFECTS ON NITROGEN LOSS FROM SOILS AND CORN YIELDS (1981)increaseNitrapyrin added to fall-applied liquid swine manure increased corn yields by an average of 46% in three years of field trials.
What separates themTest system: controlled environment · fieldCompare the two papers → - Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching (1993)
no changeNitrapyrin had no statistically significant effect on yield.
Nitrogen‐15 Evaluation of Fall‐Applied Anhydrous Ammonia: I. Efficiency of Nitrogen Uptake by Corn (2019)decreaseNitrapyrin significantly reduced grain yield at one site.
What separates themTest system: controlled environment · fieldCompare the two papers → - Can We Reduce Rainfed Maize (Zea maysL.) Nitrogenous Fertilizer Application Rate with Addition of Nitrapyrin? (2016)
no changeAdding nitrapyrin had no effect on yield under spring fertilizer nitrogen management.
Nitrapyrin Improves Grain Yield and Nitrogen Use Efficiency of Summer Maize Waterlogged in the Field (2016)increaseNitrapyrin raised DH605 grain yield by 22% under waterlogging.
What separates themSituation: not stated · waterloggingCompare the two papers → - Nitrapyrin Improves Grain Yield and Nitrogen Use Efficiency of Summer Maize Waterlogged in the Field (2016)
increaseNitrapyrin raised DH605 grain yield by 22% under waterlogging.
NITRIFICATION INHIBITORS: EFFECTS ON NITROGEN LOSS FROM SOILS AND CORN YIELDS (1981)no changeNitrapyrin at 25 mg/liter added to spring-applied liquid swine manure had no effect on yields.
What separates themSituation: waterlogging · not statedCompare the two papers → - Nitrapyrin Improves Grain Yield and Nitrogen Use Efficiency of Summer Maize Waterlogged in the Field (2016)
increaseNitrapyrin raised DH605 grain yield by 22% under waterlogging.
Tillage and Nitrogen Source Impacts on Relationships between Nitrous Oxide Emission and Nitrogen Recovery Efficiency in Corn (2019)no changeNitrapyrin did not increase corn grain yield.
What separates themSituation: waterlogging · not statedCompare the two papers → - Nitrapyrin Improves Grain Yield and Nitrogen Use Efficiency of Summer Maize Waterlogged in the Field (2016)
increaseNitrapyrin raised DH605 grain yield by 22% under waterlogging.
Nitrogen‐15 Evaluation of Fall‐Applied Anhydrous Ammonia: I. Efficiency of Nitrogen Uptake by Corn (2019)decreaseNitrapyrin significantly reduced grain yield at one site.
What separates themSituation: waterlogging · not statedCompare the two papers → - Nitrogen‐15 Evaluation of Fall‐Applied Anhydrous Ammonia: I. Efficiency of Nitrogen Uptake by Corn (2019)
decreaseNitrapyrin significantly reduced grain yield at one site.
Nitrapyrin Mitigates Nitrous Oxide Emissions, and Improves Maize Yield and Nitrogen Efficiency under Waterlogged Field (2022)increaseNitrapyrin increased yield by 34%
What separates themTest system: field · controlled environmentCompare the two papers → - Nitrification Inhibition by Nitrapyrin and Volatile Sulfur Compounds (1985)
increaseNitrapyrin increased corn yield only in the fall N application on Pratt loamy fine sand.
Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Nitrification Inhibition by Nitrapyrin and Volatile Sulfur Compounds (1985)
increaseNitrapyrin increased corn yield only in the fall N application on Pratt loamy fine sand.
Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching (1993)no changeNitrapyrin had no statistically significant effect on yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Nitrification Inhibition by Nitrapyrin and Volatile Sulfur Compounds (1985)
increaseNitrapyrin increased corn yield only in the fall N application on Pratt loamy fine sand.
Can We Reduce Rainfed Maize (Zea maysL.) Nitrogenous Fertilizer Application Rate with Addition of Nitrapyrin? (2016)no changeAdding nitrapyrin had no effect on yield under spring fertilizer nitrogen management.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Nitrification Inhibition by Nitrapyrin and Volatile Sulfur Compounds (1985)
increaseNitrapyrin increased corn yield only in the fall N application on Pratt loamy fine sand.
NITRIFICATION INHIBITORS: EFFECTS ON NITROGEN LOSS FROM SOILS AND CORN YIELDS (1981)no changeNitrapyrin at 25 mg/liter added to spring-applied liquid swine manure had no effect on yields.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Nitrification Inhibition by Nitrapyrin and Volatile Sulfur Compounds (1985)
increaseNitrapyrin increased corn yield only in the fall N application on Pratt loamy fine sand.
Tillage and Nitrogen Source Impacts on Relationships between Nitrous Oxide Emission and Nitrogen Recovery Efficiency in Corn (2019)no changeNitrapyrin did not increase corn grain yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Nitrification Inhibition by Nitrapyrin and Volatile Sulfur Compounds (1985)
increaseNitrapyrin increased corn yield only in the fall N application on Pratt loamy fine sand.
Nitrogen‐15 Evaluation of Fall‐Applied Anhydrous Ammonia: I. Efficiency of Nitrogen Uptake by Corn (2019)decreaseNitrapyrin significantly reduced grain yield at one site.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)increaseNitrapyrin increased grain yield by 27% when applied with 67 kg/ha fall-N.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
Approaches to Management Zone Definition for Use of Nitrification Inhibitors (2003)increaseUniform nitrapyrin increased yield in a wet year.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
Use of Nitrification Inhibitors and Ammonia Enrichment with Swine Manure Applications (1986)increaseFall addition of 0.56 kg/ha nitrapyrin increased corn yields over manure alone.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
Interrelationship of nitrogen nutrition with maize (Zea mays) grain yield, nitrogen use efficiency and grain quality (1992)increaseNitrapyrin increased yield of high N-responsive hybrids at all nitrogen levels.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
Response of Corn to Preplant Applications of Nitrogen and to Nitrogen Plus Nitrapyrin (1992)increasePrior nitrapyrin use raised yield in the residual year.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
Inhibition of Denitrification by Nitrapyrin with Field-grown Sweet Corn1 (1981)increaseNitrapyrin significantly increased sweet corn yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
NITRIFICATION INHIBITORS: EFFECTS ON NITROGEN LOSS FROM SOILS AND CORN YIELDS (1981)increaseNitrapyrin added to fall-applied liquid swine manure increased corn yields by an average of 46% in three years of field trials.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 (1984)
no changeIn 1979 and 1980, adding nitrapyrin to spring-applied swine manure had no effect on corn yield.
Nitrogen‐15 Evaluation of Fall‐Applied Anhydrous Ammonia: I. Efficiency of Nitrogen Uptake by Corn (2019)decreaseNitrapyrin significantly reduced grain yield at one site.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching (1993)no changeNitrapyrin had no statistically significant effect on yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
Use of Nitrification Inhibitors and Ammonia Enrichment with Swine Manure Applications (1986)increaseFall addition of 0.56 kg/ha nitrapyrin increased corn yields over manure alone.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
Interrelationship of nitrogen nutrition with maize (Zea mays) grain yield, nitrogen use efficiency and grain quality (1992)increaseNitrapyrin increased yield of high N-responsive hybrids at all nitrogen levels.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
Response of Corn to Preplant Applications of Nitrogen and to Nitrogen Plus Nitrapyrin (1992)increasePrior nitrapyrin use raised yield in the residual year.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
Effects of Nitrapyrin on Corn Yields and Recovery of Ammonium‐N at 18 Site‐Years in Iowa (1990)increaseNitrapyrin significantly increased corn yields at only two of the 72 rate-site-years
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
Can We Reduce Rainfed Maize (Zea maysL.) Nitrogenous Fertilizer Application Rate with Addition of Nitrapyrin? (2016)no changeAdding nitrapyrin had no effect on yield under spring fertilizer nitrogen management.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
Inhibition of Denitrification by Nitrapyrin with Field-grown Sweet Corn1 (1981)increaseNitrapyrin significantly increased sweet corn yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
NITRIFICATION INHIBITORS: EFFECTS ON NITROGEN LOSS FROM SOILS AND CORN YIELDS (1981)no changeNitrapyrin at 25 mg/liter added to spring-applied liquid swine manure had no effect on yields.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
increaseNitrapyrin increased grain yield by 27% when applied with 67 kg/ha fall-N.
Tillage and Nitrogen Source Impacts on Relationships between Nitrous Oxide Emission and Nitrogen Recovery Efficiency in Corn (2019)no changeNitrapyrin did not increase corn grain yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
increaseNitrapyrin increased grain yield by 27% when applied with 67 kg/ha fall-N.
Nitrogen‐15 Evaluation of Fall‐Applied Anhydrous Ammonia: I. Efficiency of Nitrogen Uptake by Corn (2019)decreaseNitrapyrin significantly reduced grain yield at one site.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Effect of Nitrapyrin on Nitrification of Broadcast‐applied Urea, Plant Nutrient Concentrations, and Corn Yield1 (1979)
decreaseNitrapyrin decreased yield by 70% when applied with 134 kg/ha spring-N.
Nitrapyrin Mitigates Nitrous Oxide Emissions, and Improves Maize Yield and Nitrogen Efficiency under Waterlogged Field (2022)increaseNitrapyrin increased yield by 34%
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Approaches to Management Zone Definition for Use of Nitrification Inhibitors (2003)
increaseUniform nitrapyrin increased yield in a wet year.
Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching (1993)no changeNitrapyrin had no statistically significant effect on yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Approaches to Management Zone Definition for Use of Nitrification Inhibitors (2003)
increaseUniform nitrapyrin increased yield in a wet year.
Can We Reduce Rainfed Maize (Zea maysL.) Nitrogenous Fertilizer Application Rate with Addition of Nitrapyrin? (2016)no changeAdding nitrapyrin had no effect on yield under spring fertilizer nitrogen management.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Approaches to Management Zone Definition for Use of Nitrification Inhibitors (2003)
increaseUniform nitrapyrin increased yield in a wet year.
Tillage and Nitrogen Source Impacts on Relationships between Nitrous Oxide Emission and Nitrogen Recovery Efficiency in Corn (2019)no changeNitrapyrin did not increase corn grain yield.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Approaches to Management Zone Definition for Use of Nitrification Inhibitors (2003)
increaseUniform nitrapyrin increased yield in a wet year.
Nitrogen‐15 Evaluation of Fall‐Applied Anhydrous Ammonia: I. Efficiency of Nitrogen Uptake by Corn (2019)decreaseNitrapyrin significantly reduced grain yield at one site.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching (1993)
no changeNitrapyrin had no statistically significant effect on yield.
Use of Nitrification Inhibitors and Ammonia Enrichment with Swine Manure Applications (1986)increaseFall addition of 0.56 kg/ha nitrapyrin increased corn yields over manure alone.
The records name no dose, test system or situation that separates the two claims.Compare the two papers →
How these papers cite each other
49 citations between these papers: 37 on the same side, 12 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 34
- positive
- positive
- negative
Effect of Nitrapyrin and N Fertilizer on Yield and Mineral Composition of Corn1 · 1980
- positive
Effectiveness of Nitrapyrin with Surface‐Applied Fertilizer Nitrogen in No‐Tillage Corn1 · 1981
- positive
Inhibition of Denitrification by Nitrapyrin with Field-grown Sweet Corn1 · 1981
- positive
NITRIFICATION INHIBITORS: EFFECTS ON NITROGEN LOSS FROM SOILS AND CORN YIELDS · 1981
- positive
- positive
- no effect
Effect of Nitrapyrin on N Response of Corn on Sandy Soils1 · 1982
- positive
- no effect
- no effect
Effects of Deep Tillage on N Response by Corn on a Sandy Coastal Plain Soil1 · 1982
- positive
Nitrogen effect on yield and kernel protein content of sweet corn grown on sandy soils · 1983
- positive
- positive
- no effect
- no effect
Increased N Efficiency from Nitrapyrin Added to Liquid Swine Manure Used as a Fertilizer for Corn1 · 1984
- positive
- positive
- no effect
- no effect
Nitrification Inhibition by Nitrapyrin and Volatile Sulfur Compounds · 1985
- positive
Use of Nitrification Inhibitors and Ammonia Enrichment with Swine Manure Applications · 1986
- positive
Effect of anhydrous ammonia with and without nitrapyrin applied fall and spring on corn yield · 1987
- positive
Ammonium fixation from urea as influenced by nitrapyrin · 1988
- positive
Use of Nitrification Inhibitors with Summer Applications of Swine Manure · 1990
- positive
Effects of Nitrapyrin on Corn Yields and Recovery of Ammonium‐N at 18 Site‐Years in Iowa · 1990
- positive
Nitrapyrin, terrazole, atrazine and simazine influence on denitrification and corn growth · 1990
- positive
- positive
- no effect
- no effect
- positive
Response of Corn to Preplant Applications of Nitrogen and to Nitrogen Plus Nitrapyrin · 1992
- positive
- positive
- positive
Corn Production as Affected by Time and Rate of Manure Application and Nitrapyrin · 1999
- positive
- positive
- positive
- no effect
Approaches to Management Zone Definition for Use of Nitrification Inhibitors · 2003
- positive
Approaches to Management Zone Definition for Use of Nitrification Inhibitors · 2003
- positive
- positive
- positive
Nitrapyrin Improves Grain Yield and Nitrogen Use Efficiency of Summer Maize Waterlogged in the Field · 2016
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
Urea Nitrapyrin Placement Effects on Soil Nitrous Oxide Emissions in Claypan Soil · 2019
- positive
- positive
- no effect
- positive
- positive
Assessing pre‐plant nitrogen sources and waterlogging on corn growth and yield · 2025
- positive
- positive
- positive
Corn response to biological products and a nitrification inhibitor · 2026
- positive
Papers reporting a negative result or no effect 9
Growth and Tissue Composition of Sweet Corn as Affected by Nitrogen Source, Nitrapyrin, and Season1 · 1979
- no effect
Effect of Nitrogen Source and Nitrapyrin on Sweet Corn1 · 1979
- no effect
Effect of fertilizer, N rate and nitrapyrin on Ca and Mg nutrition of corn (zea hays, L.) · 1980
- negative
- no effect
Urea and Anhydrous Ammonia Management for Conventional Tillage Corn Production · 1990
- no effect
Nitrapyrin effect on corn N‐15 uptake efficiency, denitrification and nitrate leaching · 1993
- no effect
- no effect
- no effect
Nitrogen‐15 Evaluation of Fall‐Applied Anhydrous Ammonia: I. Efficiency of Nitrogen Uptake by Corn · 2019
- negative
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.