Abstract
In order to determine the effect of weeds interference and nitrogen on the sugar beet growth and yield, a field study was performed in the 2010 growing season as a split plot design based on RCBD with three replications in Hana region (Semirom, Esfahan). Treatments were four levels of nitrogen from urea source as the main factor (0, 70, 150 and 210 kg ha-1) and weed interference at five levels (6-leaf, 8-leaf, 10-leaf, 12-leaf, and throughout the growth stages) growth stages in sugar beet as the sub factor. The results indicated that nitrogen and weed interaction had significant effects on the quantitative and qualitative traits of sugar beet (root yield and sugar). With increasing the nitrogen levels from 150 to 210 kg ha-1, the percentages of sugar molasses, sodium, and α-amino nitrogen were increased by 7.48, 24.26 and 21.09%, respectively, while the impurity percentage of sugar, alkalinity coefficient, and extractable sugar content were reduced by 3.09, 8.18, and 4.78% , respectively. The highest total fresh weight, root fresh weight, root dry weight, total biomass and root yield (2.1, 2.18, 1.55, 1.73 and 1.33-times, respectively) were achieved under high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growth of sugar beet in comparison to the use of no nitrogen. Reduced duration of weed competition and /or weed free till 6- leaf growth stage of sugar beet along with application of 150 kg ha-1 N led to reduction in weed interference, detrimental effect of nitrogen on quality characteristics, and increase in the root yield of sugar beet.
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Claims 15
Claim · model-written summary
Nitrogen and weed interference interacted significantly for sugar beet root yield and sugar.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- nitrogen and weed interactione0
- Interactor
- weede0weed
- Outcome
- root yield and sugare0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen and weed interaction had significant effects on the quantitative and qualitative traits of sugar beet (root yield and sugar).”
Claim · model-written summary
Increasing nitrogen from 150 to 210 kg ha-1 increased sugar molasses by 7.48.
- Taxon
- Sugar Beet (Beta vulgaris L.)
Beta vulgarist0 - Treatment
- 210 kg ha-1e0
- Outcome
- sugar molassese0
- Direction
- increasede0
- Value
- 7.48e0
- Comparator
- 150e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing the nitrogen levels from 150 to 210 kg ha-1, the percentages of sugar molasses, sodium, and α-amino nitrogen were increased by 7.48, 24.26 and 21.09%, respectively, while the impurity percentage of sugar, alkalinity coefficient, and extractable sugar content were reduced by 3.09, 8.18, and 4.78% , respectively.”
t0“Sugar Beet (Beta vulgaris L.)”
Claim · model-written summary
Increasing nitrogen from 150 to 210 kg ha-1 increased sodium by 24.26.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- 210 kg ha-1e0
- Outcome
- sodiume0
- Direction
- increasede0
- Value
- 24.26e0
- Comparator
- 150e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing the nitrogen levels from 150 to 210 kg ha-1, the percentages of sugar molasses, sodium, and α-amino nitrogen were increased by 7.48, 24.26 and 21.09%, respectively, while the impurity percentage of sugar, alkalinity coefficient, and extractable sugar content were reduced by 3.09, 8.18, and 4.78% , respectively.”
t0“Sugar Beet (Beta vulgaris L.)”
Claim · model-written summary
Increasing nitrogen from 150 to 210 kg ha-1 increased α-amino nitrogen by 21.09%.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- 210 kg ha-1e0
- Outcome
- α-amino nitrogene0
- Direction
- increasede0
- Value
- 21.09%e0
- Comparator
- 150e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing the nitrogen levels from 150 to 210 kg ha-1, the percentages of sugar molasses, sodium, and α-amino nitrogen were increased by 7.48, 24.26 and 21.09%, respectively, while the impurity percentage of sugar, alkalinity coefficient, and extractable sugar content were reduced by 3.09, 8.18, and 4.78% , respectively.”
t0“Sugar Beet (Beta vulgaris L.)”
Claim · model-written summary
Increasing nitrogen from 150 to 210 kg ha-1 reduced impurity percentage of sugar by 3.09.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- 210 kg ha-1e0
- Outcome
- impurity percentage of sugare0
- Direction
- reducede0
- Value
- 3.09e0
- Comparator
- 150e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing the nitrogen levels from 150 to 210 kg ha-1, the percentages of sugar molasses, sodium, and α-amino nitrogen were increased by 7.48, 24.26 and 21.09%, respectively, while the impurity percentage of sugar, alkalinity coefficient, and extractable sugar content were reduced by 3.09, 8.18, and 4.78% , respectively.”
t0“Sugar Beet (Beta vulgaris L.)”
Claim · model-written summary
Increasing nitrogen from 150 to 210 kg ha-1 reduced alkalinity coefficient by 8.18.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- 210 kg ha-1e0
- Outcome
- alkalinity coefficiente0
- Direction
- reducede0
- Value
- 8.18e0
- Comparator
- 150e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing the nitrogen levels from 150 to 210 kg ha-1, the percentages of sugar molasses, sodium, and α-amino nitrogen were increased by 7.48, 24.26 and 21.09%, respectively, while the impurity percentage of sugar, alkalinity coefficient, and extractable sugar content were reduced by 3.09, 8.18, and 4.78% , respectively.”
t0“Sugar Beet (Beta vulgaris L.)”
Claim · model-written summary
Increasing nitrogen from 150 to 210 kg ha-1 reduced extractable sugar content by 4.78%.
- Taxon
- Sugar Beet (Beta vulgaris L.)Beta vulgarist0
- Treatment
- 210 kg ha-1e0
- Outcome
- extractable sugar contente0
- Direction
- reducede0
- Value
- 4.78%e0
- Comparator
- 150e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With increasing the nitrogen levels from 150 to 210 kg ha-1, the percentages of sugar molasses, sodium, and α-amino nitrogen were increased by 7.48, 24.26 and 21.09%, respectively, while the impurity percentage of sugar, alkalinity coefficient, and extractable sugar content were reduced by 3.09, 8.18, and 4.78% , respectively.”
t0“Sugar Beet (Beta vulgaris L.)”
Claim · model-written summary
High nitrogen and weed interference at the 6-leaf stage gave total fresh weight at 2.1 versus no nitrogen.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growthe0
- Interactor
- weede0weed
- Outcome
- total fresh weighte0
- Direction
- higheste0
- Value
- 2.1e0
- Comparator
- no nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest total fresh weight, root fresh weight, root dry weight, total biomass and root yield (2.1, 2.18, 1.55, 1.73 and 1.33-times, respectively) were achieved under high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growth of sugar beet in comparison to the use of no nitrogen.”
Claim · model-written summary
High nitrogen and weed interference at the 6-leaf stage gave root fresh weight at 2.18 versus no nitrogen.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growthe0
- Interactor
- weede0weed
- Outcome
- root fresh weighte0
- Direction
- higheste0
- Value
- 2.18e0
- Comparator
- no nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest total fresh weight, root fresh weight, root dry weight, total biomass and root yield (2.1, 2.18, 1.55, 1.73 and 1.33-times, respectively) were achieved under high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growth of sugar beet in comparison to the use of no nitrogen.”
Claim · model-written summary
High nitrogen and weed interference at the 6-leaf stage gave root dry weight at 1.55 versus no nitrogen.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growthe0
- Interactor
- weede0weed
- Outcome
- root dry weighte0
- Direction
- higheste0
- Value
- 1.55e0
- Comparator
- no nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest total fresh weight, root fresh weight, root dry weight, total biomass and root yield (2.1, 2.18, 1.55, 1.73 and 1.33-times, respectively) were achieved under high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growth of sugar beet in comparison to the use of no nitrogen.”
Claim · model-written summary
High nitrogen and weed interference at the 6-leaf stage gave total biomass at 1.73 versus no nitrogen.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growthe0
- Interactor
- weede0weed
- Outcome
- total biomasse0
- Direction
- higheste0
- Value
- 1.73e0
- Comparator
- no nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest total fresh weight, root fresh weight, root dry weight, total biomass and root yield (2.1, 2.18, 1.55, 1.73 and 1.33-times, respectively) were achieved under high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growth of sugar beet in comparison to the use of no nitrogen.”
Claim · model-written summary
High nitrogen and weed interference at the 6-leaf stage gave root yield at 1.33-times versus no nitrogen.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growthe0
- Interactor
- weede0weed
- Outcome
- root yielde0
- Direction
- higheste0
- Value
- 1.33-timese0
- Comparator
- no nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest total fresh weight, root fresh weight, root dry weight, total biomass and root yield (2.1, 2.18, 1.55, 1.73 and 1.33-times, respectively) were achieved under high levels of nitrogen (210 kg ha-1) and weed interference at the 6-leaf growth of sugar beet in comparison to the use of no nitrogen.”
Claim · model-written summary
Reducing weed competition or keeping plots weed-free through the 6-leaf stage with 150 kg ha-1 N reduced weed interference.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- weed free till 6- leaf growth stage of sugar beet along with application of 150 kg ha-1 Ne0
- Interactor
- weede0weed
- Outcome
- weed interferencee0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced duration of weed competition and /or weed free till 6- leaf growth stage of sugar beet along with application of 150 kg ha-1 N led to reduction in weed interference, detrimental effect of nitrogen on quality characteristics, and increase in the root yield of sugar beet.”
Claim · model-written summary
That weed and nitrogen management reduced the detrimental effect of nitrogen on quality characteristics.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- weed free till 6- leaf growth stage of sugar beet along with application of 150 kg ha-1 Ne0
- Interactor
- weede0weed
- Outcome
- detrimental effect of nitrogen on quality characteristicse0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced duration of weed competition and /or weed free till 6- leaf growth stage of sugar beet along with application of 150 kg ha-1 N led to reduction in weed interference, detrimental effect of nitrogen on quality characteristics, and increase in the root yield of sugar beet.”
Claim · model-written summary
That weed and nitrogen management increased sugar beet root yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- weed free till 6- leaf growth stage of sugar beet along with application of 150 kg ha-1 Ne0
- Interactor
- weede0weed
- Outcome
- root yield of sugar beete0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduced duration of weed competition and /or weed free till 6- leaf growth stage of sugar beet along with application of 150 kg ha-1 N led to reduction in weed interference, detrimental effect of nitrogen on quality characteristics, and increase in the root yield of sugar beet.”
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See all 10 papers →8 of 18 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.