fertilization · Quality: oil · Helianthus annuus (common sunflower)
124 claims from these papers; 15 citations between them.
Papers whose results differ, checked claim by claim 2
2 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.
- Nitrogen Balance Approach to Sunflower Fertilization (2003)
no changeNitrogen fertilization had no effect on sunflower grain oil concentration.
Sunflower Nutrient Uptake, Growth, and Yield as Affected by Nitrogen or Manure, and Plant Population1 (1982)decreaseNitrogen fertilizer reduced seed oil percentage.
The records name no dose, test system or situation that separates the two claims.Compare the two papers → - Sunflower Nutrient Uptake, Growth, and Yield as Affected by Nitrogen or Manure, and Plant Population1 (1982)
decreaseNitrogen fertilizer reduced seed oil percentage.
Nitrogen Fertilization Effects on Oil Content, Sucrose, α- Tocopherol, Fatty Acid and Aminoacid Compositions of Confectionary Sunflower Seed (2025)no changeNitrogen fertilization has no significant effect on sunflower seed oil content.
The records name no dose, test system or situation that separates the two claims.Compare 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 76
Effects of Nitrogen, Phosphorus, and Plant Density on Sunflower1 · 1974
- positive
- no effect
- positive
- positive
- positive
- positive
- positive
- positive
N,P Fertilizer Experiments of Xinkui No.18 · 2010
- positive
- positive
- positive
Fertilizer Experiments of Xinkuiza No.7 · 2010
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
Effects of Nitrogen,Phosphorus and Potassium Fertilizers on Yield and Quality of Oil-sunflower · 2012
- positive
- negative
- negative
- positive
Integrated Fertilization Systems Enhance Quality and Yield of Sunflower (Helianthus annuus L.) · 2013
- positive
- positive
Enrichment of Cotton Stalk Based Compost and its Influence on Growth and Yield of Sunflower · 2013
- positive
- positive
- positive
- positive
- positive
- positive
- positive
Evaluation of Different Sulphur Sources on Sunflower (Helianthus Annuus L.) · 2014
- positive
- positive
Fertilizer optimization for hybrid sunflower under irrigated condition · 2015
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
Response of Sunflower to Different N/P Fertilizer Ratios and Levels of Nitrogen and Phosphorus · 2017
- positive
- positive
- positive
- positive
- positive
Effect of nitrogen, wheat residues, and compost rates on the growth and yield of sunflower · 2018
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- negative
- positive
- no effect
USE OF FERTILIZERS AND BIO MEDICINE FOR SUNFLOWER ON ORDINARY CHERNOZEM (BLACK SOIL) · 2018
- positive
- positive
- positive
- positive
Growth and Yield of Sunflower as Influenced by Nutrient Management Practices · 2019
- positive
- positive
Effect of organic and inorganic sources of sulphur on growth and yield of sunflower · 2019
- positive
Efficacy of Hydrophilic Polymer on Sunflower (Helianthus annus L.) Production in Spring · 2019
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- no effect
Efficiency of application of compost of liquid poultry manure under sunflower in southern chernozem · 2022
- positive
- positive
EFFICIENCY OF THE USE OF MAGNESIUM SULFATE IN SUNFLOWER CROPS · 2022
- positive
- positive
- positive
- positive
- positive
- positive
- positive
Effect of biomass ash on yield and nutrient uptake of sunflower in vertisol · 2024
- positive
Efficiency of chelated fertilizers in sunflower cultivation · 2024
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- no effect
Effect of vermicompost-based preparations on yield formation, production and quality of sunflower · 2025
- positive
- positive
- positive
- positive
- positive
- positive
- positive
- positive
Papers reporting a negative result or no effect 13
- negative
- negative
Nitrogen Balance Approach to Sunflower Fertilization · 2003
- no effect
- no effect
- no effect
Response of Sunflower to Nitrogen and Phosphorus in North Dakota · 2018
- no effect
GOAT MANURE FERTILIZATION AND IRRIGATION ON PRODUCTION COMPONENTS OF SUNFLOWER · 2019
- no effect
- no effect
- no effect
Вплив макро- і мікродобрив на біометричні, продуктивні та якісні показники гібридів соняшнику · 2021
- negative
Does nitrogen fertilization rate, timing, and splitting affect sunflower yield and grain quality? · 2023
- negative
SUNFLOWER YIELD DEPENDING ON THE APPLICATION OF MICRONUTRIENTS · 2023
- no effect
Sunflower hybrids productivity depending on the rates of mineral fertilizers in the south of Ukraine · 2023
- negative
- no effect
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.
fertilization on Helianthus annuus (common sunflower) against other targets
fertilization · quality: oil on other organisms
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