Abstract
Abstract. The current paper has presented the results of applying various terms and types of nitrogen additional fertilizing in the cultivation of winter bread wheat. The purpose of the study was to establish the productivity and grain quality of winter bread wheat sown after sunflower, when using nitrogen additional fertilizing. Ammophos and ammonium sulfate were applied under seedbed cultivation; ammonium nitrate, urea and carbamide-ammonia mixture were used as additional fertilizing at different periods of active winter wheat vegetation. Methods. The research was conducted at the Agricultural Research Center “Donskoy” in 2017–2019. When laying and conducting the experiment, taking into account the yield, generally accepted methods were used; the technology of winter wheat cultivation and the dose of nitrogen fertilizing corresponds to the Zonal farming systems of the Rostov region. Scientific novelty. For the first time there have been determined the best terms, methods and doses of nitrogen additional fertilizing with various types of fertilizers for winter bread wheat in the southern part of the Rostov region. Results. There was established a significant effect of the terms of nitrogen fertilizing on productivity, as well as on winter wheat quality. Portioned application of ammonium nitrate at a dose of N90 contributed to obtaining the maximum productivity of 6.15 t/ha in the trial, and productivity increase in comparison with the control variant was 2.34 t/ha or 61.4%. In other variants of the trial, productivity increase due to the use of nitrogen fertilizers ranged from 0.90 to 2.26 t/ha. Autumn application of ammonium sulfate at a dose of N30 under seedbed cultivation was an effective agricultural method that contributed to an additional productivity improvement on 0.55–0.64 t/ha. The high efficiency of nitrogen additional fertilizing was due to an improvement of the indicators of yield structure elements, namely, ‘kernel weight per head’ and ‘number of productive stems’. Nitrogen additional fertilizing improved qualitative characteristics of the product. There has been found out that under a portioned application of ammonium nitrate at a dose of N90, there were yielded the highest economic indicators, such as 30117 rubles/ha of conditional net income and 112.9 % of production profitability.
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Claims 9
Claim · model-written summary
Timing of nitrogen fertilization significantly affected wheat productivity.
- Taxon
- winter bread wheat
Triticum aestivume1 - Treatment
- terms of nitrogen fertilizinge0
- Outcome
- productivitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant effect of the terms of nitrogen fertilizing on productivity”
e1“productivity and grain quality of winter bread wheat”
Claim · model-written summary
Timing of nitrogen fertilization significantly affected winter wheat quality.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- terms of nitrogen fertilizinge0
- Outcome
- winter wheat qualitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant effect of the terms of nitrogen fertilizing on productivity, as well as on winter wheat quality”
Claim · model-written summary
Portioned ammonium nitrate at N90 produced the maximum wheat productivity of 6.15 t/ha, 2.34 t/ha or 61.4% above control.
- Taxon
- winter bread wheatTriticum aestivume1
- Treatment
- Portioned application of ammonium nitrate at a dose of N90e0
- Outcome
- productivitye0
- Direction
- increasee0
- Value
- 6.15 t/hae0
- Qualifier
- 2.34 t/ha or 61.4%e0
- Comparator
- control variante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Portioned application of ammonium nitrate at a dose of N90 contributed to obtaining the maximum productivity of 6.15 t/ha in the trial, and productivity increase in comparison with the control variant was 2.34 t/ha or 61.4%”
e1“productivity and grain quality of winter bread wheat”
Claim · model-written summary
Other nitrogen fertilizer variants increased wheat productivity by 0.90 to 2.26 t/ha.
- Taxon
- winter bread wheatTriticum aestivume1
- Treatment
- nitrogen fertilizerse0
- Outcome
- productivitye0
- Direction
- increasee0
- Value
- 0.90 to 2.26 t/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In other variants of the trial, productivity increase due to the use of nitrogen fertilizers ranged from 0.90 to 2.26 t/ha”
e1“productivity and grain quality of winter bread wheat”
Claim · model-written summary
Autumn ammonium sulfate at N30 improved wheat productivity by 0.55–0.64 t/ha.
- Taxon
- winter bread wheatTriticum aestivume1
- Treatment
- Autumn application of ammonium sulfate at a dose of N30e0
- Outcome
- productivitye0
- Direction
- improvemente0
- Value
- 0.55–0.64 t/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Autumn application of ammonium sulfate at a dose of N30 under seedbed cultivation was an effective agricultural method that contributed to an additional productivity improvement on 0.55–0.64 t/ha”
e1“productivity and grain quality of winter bread wheat”
Claim · model-written summary
Nitrogen fertilization improved kernel weight per head and productive stem number.
- Taxon
- winter bread wheatTriticum aestivume2
- Treatment
- Nitrogen additional fertilizinge1
- Outcome
- ‘kernel weight per head’ and ‘number of productive stems’e0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“improvement of the indicators of yield structure elements, namely, ‘kernel weight per head’ and ‘number of productive stems’”
e1“Nitrogen additional fertilizing”
e2“productivity and grain quality of winter bread wheat”
Claim · model-written summary
Nitrogen fertilization improved product quality characteristics.
- Taxon
- winter bread wheatTriticum aestivume1
- Treatment
- Nitrogen additional fertilizinge0
- Outcome
- qualitative characteristics of the producte0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen additional fertilizing improved qualitative characteristics of the product”
e1“productivity and grain quality of winter bread wheat”
Claim · model-written summary
Portioned ammonium nitrate at N90 gave conditional net income of 30117 rubles/ha.
- Taxon
- winter bread wheatTriticum aestivume1
- Treatment
- portioned application of ammonium nitrate at a dose of N90e0
- Outcome
- conditional net incomee0
- Direction
- higheste0
- Value
- 30117 rubles/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under a portioned application of ammonium nitrate at a dose of N90, there were yielded the highest economic indicators, such as 30117 rubles/ha of conditional net income and 112.9 % of production profitability”
e1“productivity and grain quality of winter bread wheat”
Claim · model-written summary
Portioned ammonium nitrate at N90 gave production profitability of 112.9%.
- Taxon
- winter bread wheatTriticum aestivume1
- Treatment
- portioned application of ammonium nitrate at a dose of N90e0
- Outcome
- production profitabilitye0
- Direction
- higheste0
- Value
- 112.9 %e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“under a portioned application of ammonium nitrate at a dose of N90, there were yielded the highest economic indicators, such as 30117 rubles/ha of conditional net income and 112.9 % of production profitability”
e1“productivity and grain quality of winter bread wheat”
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