Abstract
Currently, there is a significant gap between the production and consumption of vegetable oils in Ukraine, as a significant part of them is exported to the European Union. Therefore, in order to quantify the comparative performance of different sunflower hybrids under the influence of different moisture conditions and nitrogen fertilizer rates, this study was conducted. The studied variants included three hybrids of sunflower Hysun 33, Hysun 38 and Pioneer-64A93, five rates of nitrogen fertilizers (0, 60, 120, 180, 240 kg of nitrogen per 1 ha ), arranged randomly in quadruplicate. Field research was conducted for two years under three different conditions of moisture (insufficient, unstable and sufficient) in the research areas of Vinnytsia National Agrarian University. The results of the study showed that the productivity of sunflower hybrids varied greatly in response to the application of nitrogen fertilizers and different humidification conditions. The maximum seed yield of 3,177 t / ha was obtained under conditions of sufficient moisture. Among the studied hybrids, the hybrid Hysun 38, surpassed the other two hybrids, providing a yield of 3.083 t / ha and a seed oil content of 41%. There was an increase in the yield of hybrids with increasing rates of nitrogen fertilizers, and the maximum yield was obtained by applying 180 kg / ha of nitrogen in dr. Studies have shown that the yield potential of hybrid Hysun 38 can be fully used by applying nitrogen fertilizers at a rate of 180 kg / ha in conditions of insufficient moisture. Higher nitrogen levels contributed to the significant formation of vegetative mass, thus balancing in favor of reproductive growth. Achieving a yield plateau with 180 kg / ha of nitrogen fertilizers means that an additional dose of nitrogen fertilizers did not contribute to further yield growth. The presence of a strong correlation between the yield of hybrids and nitrogen norms indicates that the yield depends on the presence of a sufficient amount of nitrogen in the soil. The highest yield was obtained by hybrid Hysun 38 - 3,662 t / ha with the introduction of 180 kg / ha of nitrogen. The oil content in the seeds varied significantly depending on different moisture conditions, hybrids and nitrogen fertilizer rates. The maximum oil content of 42.8% was obtained in conditions of sufficient moisture, in conditions of unstable - 40.9% and in conditions of insufficient - 40.4%
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Claims 14
Claim · model-written summary
Sunflower hybrid productivity varied with nitrogen fertilization and moisture.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- nitrogen fertilizerse0
- Outcome
- productivity of sunflower hybridse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“productivity of sunflower hybrids varied greatly in response to the application of nitrogen fertilizers and different humidification conditions”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Sufficient moisture produced the maximum seed yield of 3,177 t / ha.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- sufficient moisturee0
- Outcome
- seed yielde0
- Direction
- maximume0
- Value
- 3,177 t / hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum seed yield of 3,177 t / ha was obtained under conditions of sufficient moisture”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Hysun 38 surpassed the other two hybrids in yield, providing 3.083 t / ha.
- Taxon
- sunflowerHelianthus annuust0
- Material
- Hysun 38e0
- Outcome
- yielde0
- Direction
- surpassede0
- Value
- 3.083 t / hae0
- Comparator
- other two hybridse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the studied hybrids, the hybrid Hysun 38, surpassed the other two hybrids, providing a yield of 3.083 t / ha and a seed oil content of 41%”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Hysun 38 had a seed oil content of 41%.
- Taxon
- sunflowerHelianthus annuust0
- Material
- Hysun 38e0
- Outcome
- seed oil contente0
- Value
- 41%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hysun 38, surpassed the other two hybrids, providing a yield of 3.083 t / ha and a seed oil content of 41%”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Hybrid yield rose with increasing nitrogen fertilizer rates.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- nitrogen fertilizerse0
- Outcome
- yield of hybridse0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was an increase in the yield of hybrids with increasing rates of nitrogen fertilizers”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Applying 180 kg / ha nitrogen gave the maximum yield.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- 180 kg / ha of nitrogene0
- Outcome
- yielde0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the maximum yield was obtained by applying 180 kg / ha of nitrogen in dr”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Higher nitrogen levels significantly promoted vegetative mass formation.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Higher nitrogen levelse0
- Outcome
- vegetative masse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Higher nitrogen levels contributed to the significant formation of vegetative mass”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Additional nitrogen beyond 180 kg / ha did not increase yield further.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- an additional dose of nitrogen fertilizerse0
- Outcome
- yield growthe0
- Direction
- did not contribute to furthere0
- Comparator
- 180 kg / ha of nitrogen fertilizerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Achieving a yield plateau with 180 kg / ha of nitrogen fertilizers means that an additional dose of nitrogen fertilizers did not contribute to further yield growth”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Hybrid yield was strongly correlated with nitrogen norms.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- nitrogen normse0
- Outcome
- yield of hybridse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The presence of a strong correlation between the yield of hybrids and nitrogen norms indicates that the yield depends on the presence of a sufficient amount of nitrogen in the soil”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Hysun 38 yielded 3,662 t / ha at 180 kg / ha nitrogen, the highest reported yield.
- Taxon
- sunflowerHelianthus annuust0
- Material
- Hysun 38e0
- Treatment
- 180 kg / ha of nitrogene0
- Outcome
- yielde0
- Direction
- higheste0
- Value
- 3,662 t / hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest yield was obtained by hybrid Hysun 38 - 3,662 t / ha with the introduction of 180 kg / ha of nitrogen”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Seed oil content varied significantly by moisture, hybrid, and nitrogen rate.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- nitrogen fertilizer ratese0
- Outcome
- oil content in the seedse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The oil content in the seeds varied significantly depending on different moisture conditions, hybrids and nitrogen fertilizer rates”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Sufficient moisture gave the maximum seed oil content of 42.8%.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- sufficient moisturee0
- Outcome
- oil contente0
- Direction
- maximume0
- Value
- 42.8%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum oil content of 42.8% was obtained in conditions of sufficient moisture”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Unstable moisture gave seed oil content of 40.9%.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- oil contente0
- Value
- 40.9%e0
- Setting
- conditions of unstablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum oil content of 42.8% was obtained in conditions of sufficient moisture, in conditions of unstable - 40.9% and in conditions of insufficient - 40.4%”
t0“SUNFLOWER HYBRIDS”
Claim · model-written summary
Insufficient moisture gave seed oil content of 40.4%.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- oil contente0
- Value
- 40.4%e0
- Setting
- conditions of insufficiente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The maximum oil content of 42.8% was obtained in conditions of sufficient moisture, in conditions of unstable - 40.9% and in conditions of insufficient - 40.4%”
t0“SUNFLOWER HYBRIDS”
The same questions in other papers
nitrogen · yield · Helianthus annuus (common sunflower)Positive and negative results
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- positive
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20 papers in the same direction as this paper · 344 reporting no difference from an alternative
- positive
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See all 365 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.