Abstract
Two field experiments were carried out at the Experimental Farm of EL-Serw Agricultural Station, Dommiata Governorate ,Agricultural Research Center ,Egypt during the two successive seasons of 2006/07 and 2007/08.The aim of this investigation to study the effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet . The results showed that: 1- There is significant effect of nitrogen fertilizer levels on root diameter, root fresh weight , purity %, root and sugar yields (t/fed) in both seasons and significant for sucrose percentage in the second season, TSS% in the first season while it is insignificant effect for root length in both seasons. The treatment of 120kgN/fed increased root yield by 64.157 % and 25.78% and sugar yield by 53.23% 21.25% compared by addition 80 kg N/fed in both seasons. 2- Effect of withholding last irrigation was significant for root length ,sucrose percentage ,sugar yields in both seasons and significant effect on root fresh weight in the second season and root yield in the first season and insignificant effect on purity percentage in both seasons. Applying the irrigation 5 weeks before harvest gave the lowest root length ,root fresh weight and the lowest root and sugar yields while gave the highest sucrose and purity percentages in both seasons. 3- The interaction between nitrogen fertilizer levels and withholding of last irrigation was significant effect on root length and root fresh weight in the second season ,TSS% in the first season and sucrose percentage in both seasons ,but it was insignificant effect on root diameter, root and sugar yields in both seasons. 4- From this study we can advise to use nitrogen fertilization at rate of 120 kg/fed and date of last irrigation 4 weeks before harvest to obtain the maximum yield and quality of sugar beet in East Northern Delta.
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Claims 19
Claim · model-written summary
Root yield increased by 64.157 % and 25.78% with 120 kg N/fed compared with 80 kg N/fed in both seasons.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- 120kgN/fede1
- Outcome
- root yielde1
- Direction
- increasede1
- Value
- 64.157 % and 25.78%e1
- Qualifier
- in both seasonse1
- Comparator
- 80 kg N/fede1
- Setting
- Dommiata Governoratee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e1“The treatment of 120kgN/fed increased root yield by 64.157 % and 25.78% and sugar yield by 53.23% 21.25% compared by addition 80 kg N/fed in both seasons”
e7“Two field experiments were carried out at the Experimental Farm of EL-Serw Agricultural Station, Dommiata Governorate”
Claim · model-written summary
Sugar yield increased by 53.23% and 21.25% with 120 kg N/fed compared with 80 kg N/fed.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- 120kgN/fede1
- Outcome
- sugar yielde1
- Direction
- increasede1
- Value
- 53.23% 21.25%e1
- Comparator
- 80 kg N/fede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e1“The treatment of 120kgN/fed increased root yield by 64.157 % and 25.78% and sugar yield by 53.23% 21.25% compared by addition 80 kg N/fed in both seasons”
Claim · model-written summary
Nitrogen fertilizer levels significantly affected root diameter, root fresh weight and purity % of sugar beet in both seasons.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- nitrogen fertilizer levelse2
- Outcome
- root diameter, root fresh weight , purity %e2
- Qualifier
- in both seasonse2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e2“There is significant effect of nitrogen fertilizer levels on root diameter, root fresh weight , purity %, root and sugar yields (t/fed) in both seasons and significant for sucrose percentage in the second season, TSS% in the first season while it is insignificant effect for root length in both seasons”
Claim · model-written summary
Nitrogen fertilizer levels significantly affected root and sugar yields of sugar beet in both seasons.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- nitrogen fertilizer levelse2
- Outcome
- root and sugar yields (t/fed)e2
- Qualifier
- in both seasonse2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e2“There is significant effect of nitrogen fertilizer levels on root diameter, root fresh weight , purity %, root and sugar yields (t/fed) in both seasons and significant for sucrose percentage in the second season, TSS% in the first season while it is insignificant effect for root length in both seasons”
Claim · model-written summary
Nitrogen fertilizer levels significantly affected sucrose percentage of sugar beet in the second season.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- nitrogen fertilizer levelse2
- Outcome
- sucrose percentagee2
- Qualifier
- in the second seasone2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e2“There is significant effect of nitrogen fertilizer levels on root diameter, root fresh weight , purity %, root and sugar yields (t/fed) in both seasons and significant for sucrose percentage in the second season, TSS% in the first season while it is insignificant effect for root length in both seasons”
Claim · model-written summary
Nitrogen fertilizer levels significantly affected TSS% of sugar beet in the first season.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- nitrogen fertilizer levelse2
- Outcome
- TSS%e2
- Qualifier
- in the first seasone2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e2“There is significant effect of nitrogen fertilizer levels on root diameter, root fresh weight , purity %, root and sugar yields (t/fed) in both seasons and significant for sucrose percentage in the second season, TSS% in the first season while it is insignificant effect for root length in both seasons”
Claim · model-written summary
Nitrogen fertilizer levels had an insignificant effect on root length of sugar beet in both seasons.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- nitrogen fertilizer levelse2
- Outcome
- root lengthe2
- Direction
- insignificant effecte2
- Qualifier
- in both seasonse2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e2“There is significant effect of nitrogen fertilizer levels on root diameter, root fresh weight , purity %, root and sugar yields (t/fed) in both seasons and significant for sucrose percentage in the second season, TSS% in the first season while it is insignificant effect for root length in both seasons”
Claim · model-written summary
Withholding the last irrigation significantly affected root length, sucrose percentage and sugar yields of sugar beet in both seasons.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- withholding last irrigatione3
- Outcome
- root length ,sucrose percentage ,sugar yieldse3
- Qualifier
- in both seasonse3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e3“Effect of withholding last irrigation was significant for root length ,sucrose percentage ,sugar yields in both seasons and significant effect on root fresh weight in the second season and root yield in the first season and insignificant effect on purity percentage in both seasons”
Claim · model-written summary
Withholding the last irrigation significantly affected root fresh weight of sugar beet in the second season.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- withholding last irrigatione3
- Outcome
- root fresh weighte3
- Qualifier
- in the second seasone3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e3“Effect of withholding last irrigation was significant for root length ,sucrose percentage ,sugar yields in both seasons and significant effect on root fresh weight in the second season and root yield in the first season and insignificant effect on purity percentage in both seasons”
Claim · model-written summary
Withholding the last irrigation significantly affected root yield of sugar beet in the first season.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- withholding last irrigatione3
- Outcome
- root yielde3
- Qualifier
- in the first seasone3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e3“Effect of withholding last irrigation was significant for root length ,sucrose percentage ,sugar yields in both seasons and significant effect on root fresh weight in the second season and root yield in the first season and insignificant effect on purity percentage in both seasons”
Claim · model-written summary
Withholding the last irrigation had an insignificant effect on purity percentage of sugar beet in both seasons.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- withholding last irrigatione3
- Outcome
- purity percentagee3
- Direction
- insignificant effecte3
- Qualifier
- in both seasonse3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e3“Effect of withholding last irrigation was significant for root length ,sucrose percentage ,sugar yields in both seasons and significant effect on root fresh weight in the second season and root yield in the first season and insignificant effect on purity percentage in both seasons”
Claim · model-written summary
Applying the irrigation 5 weeks before harvest gave the lowest root length and root fresh weight of sugar beet.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- Applying the irrigation 5 weeks before harveste4
- Outcome
- root length ,root fresh weighte4
- Direction
- loweste4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e4“Applying the irrigation 5 weeks before harvest gave the lowest root length ,root fresh weight and the lowest root and sugar yields while gave the highest sucrose and purity percentages in both seasons”
Claim · model-written summary
Applying the irrigation 5 weeks before harvest gave the lowest root and sugar yields of sugar beet.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- Applying the irrigation 5 weeks before harveste4
- Outcome
- root and sugar yieldse4
- Direction
- loweste4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e4“Applying the irrigation 5 weeks before harvest gave the lowest root length ,root fresh weight and the lowest root and sugar yields while gave the highest sucrose and purity percentages in both seasons”
Claim · model-written summary
Applying the irrigation 5 weeks before harvest gave the highest sucrose and purity percentages of sugar beet in both seasons.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- Applying the irrigation 5 weeks before harveste4
- Outcome
- sucrose and purity percentagese4
- Direction
- higheste4
- Qualifier
- in both seasonse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e4“Applying the irrigation 5 weeks before harvest gave the lowest root length ,root fresh weight and the lowest root and sugar yields while gave the highest sucrose and purity percentages in both seasons”
Claim · model-written summary
The interaction of nitrogen levels and withholding of last irrigation significantly affected root length and root fresh weight of sugar beet in the second season.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- nitrogen fertilizer levels and withholding of last irrigatione5
- Outcome
- root length and root fresh weighte5
- Qualifier
- in the second seasone5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e5“The interaction between nitrogen fertilizer levels and withholding of last irrigation was significant effect on root length and root fresh weight in the second season ,TSS% in the first season and sucrose percentage in both seasons ,but it was insignificant effect on root diameter, root and sugar yields in both seasons”
Claim · model-written summary
The interaction of nitrogen levels and withholding of last irrigation significantly affected TSS% of sugar beet in the first season.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- nitrogen fertilizer levels and withholding of last irrigatione5
- Outcome
- TSS%e5
- Qualifier
- in the first seasone5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e5“The interaction between nitrogen fertilizer levels and withholding of last irrigation was significant effect on root length and root fresh weight in the second season ,TSS% in the first season and sucrose percentage in both seasons ,but it was insignificant effect on root diameter, root and sugar yields in both seasons”
Claim · model-written summary
The interaction of nitrogen levels and withholding of last irrigation significantly affected sucrose percentage of sugar beet in both seasons.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- nitrogen fertilizer levels and withholding of last irrigatione5
- Outcome
- sucrose percentagee5
- Qualifier
- in both seasonse5
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e5“The interaction between nitrogen fertilizer levels and withholding of last irrigation was significant effect on root length and root fresh weight in the second season ,TSS% in the first season and sucrose percentage in both seasons ,but it was insignificant effect on root diameter, root and sugar yields in both seasons”
Claim · model-written summary
The interaction of nitrogen levels and withholding of last irrigation had an insignificant effect on root diameter, root and sugar yields of sugar beet in both seasons.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Treatment
- nitrogen fertilizer levels and withholding of last irrigatione5
- Outcome
- root diameter, root and sugar yieldse5
- Direction
- insignificant effecte5
- Qualifier
- in both seasonse5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“effect of nitrogen levels at rates of (80,100 and 120 kg N/fed) and three withholding irrigation dates of the last irrigation (3,4 and 5 weeks before harvest) on yield and quality of sugar beet”
e5“The interaction between nitrogen fertilizer levels and withholding of last irrigation was significant effect on root length and root fresh weight in the second season ,TSS% in the first season and sucrose percentage in both seasons ,but it was insignificant effect on root diameter, root and sugar yields in both seasons”
Claim · model-written summary
Nitrogen fertilization at 120 kg/fed with last irrigation 4 weeks before harvest is advised to obtain the maximum yield and quality of sugar beet.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise6 - Treatment
- nitrogen fertilization at rate of 120 kg/fede6
- Outcome
- maximum yield and qualitye6
- Qualifier
- date of last irrigation 4 weeks before harveste6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e6“we can advise to use nitrogen fertilization at rate of 120 kg/fed and date of last irrigation 4 weeks before harvest to obtain the maximum yield and quality of sugar beet in East Northern Delta”
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