Abstract
Two field experiments were conducted at Sedment El-Gabal location, Beni-Sweif Governorate during 2007/2009 seasons to study the response of sugar beet yield and some of its attributes under sprinkle irrigation to different N rates; 100, 120, 140 and 160 kg N/fed and its time of application viz., split application in two equal doses, at 4- and at 8-leaf stage, or in three equal doses,1/3 at 4- leaf stage, 1/3 at 8-leaf stage and 1/3 three weeks later, or dividing the rate into 4 equal doses and added 1/4 at 4- leaf stages, 1/4 at 8- leaf stage, 1/4 three weeks later and 1/4 three weeks after the last. A split plot design with four replications was used, where N rates were allocated in the main plots and time of N application was distributed at random in the subplots. Results obtained from this study revealed that increasing N rates from 100 up to 160 kg N/fed significantly increased root weight by 16.52% and 24.77%, number of plants at harvest by 4.05 and 2.89 thousand plants/fed and root yield by 7.22 and 8.34 tons/fed in the first and second seasons, respectively. Excessive N rate lowered beet quality in terms of sucrose content, juice purity and extractable sucrose. Extractable sugar yield increased by increasing N rates from 100 to 120 Kg/fed. Such increase amounted to 29.08 % in the first season and 31.97 % in the second one. Additional increasing in nitrogen rate beyond 120 kg N/fed had no significant effect on sugar yield. Splitting N rate into 4 equal doses significantly increased weight of individual root and number of plants/fed at harvest. Late N application in favour of N splitted into 4 doses gave the highest root yield/fed. On the other hand, early application and splitting N in two equal doses at 4-and at 8-leaf stage improved beet quality traits in terms of sucrose %, purity % and extractable sucrose %. Splitting 160 kg N/fed into 4 equal doses gave the highest root yield, while splitting 120 kg N/fed into 4 equal doses was recommended for high sugar yield/fed.
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Claims 15
Claim · model-written summary
Raising nitrogen from 100 to 160 kg N/fed increased root weight by 16.52% in the first season.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarist0 - Treatment
- 160 kg N/fede0
- Outcome
- root weighte0
- Direction
- increasede0
- Value
- 16.52%e0
- Comparator
- 100e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing N rates from 100 up to 160 kg N/fed significantly increased root weight by 16.52% and 24.77%”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Raising nitrogen from 100 to 160 kg N/fed increased root weight by 24.77% in the second season.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- 160 kg N/fede0
- Outcome
- root weighte0
- Direction
- increasede0
- Value
- 24.77%e0
- Comparator
- 100e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing N rates from 100 up to 160 kg N/fed significantly increased root weight by 16.52% and 24.77%”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Raising nitrogen increased plants at harvest by 4.05 thousand plants/fed in the first season.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- 160 kg N/fede0
- Outcome
- number of plants at harveste0
- Direction
- increasede0
- Value
- 4.05e0
- Comparator
- 100e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing N rates from 100 up to 160 kg N/fed significantly increased root weight by 16.52% and 24.77%, number of plants at harvest by 4.05 and 2.89 thousand plants/fed and root yield by 7.22 and 8.34 tons/fed in the first and second seasons, respectively.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Raising nitrogen increased plants at harvest by 2.89 thousand plants/fed in the second season.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- 160 kg N/fede0
- Outcome
- number of plants at harveste0
- Direction
- increasede0
- Value
- 2.89 thousand plants/fede0
- Comparator
- 100e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing N rates from 100 up to 160 kg N/fed significantly increased root weight by 16.52% and 24.77%, number of plants at harvest by 4.05 and 2.89 thousand plants/fed and root yield by 7.22 and 8.34 tons/fed in the first and second seasons, respectively.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Raising nitrogen increased root yield by 7.22 tons/fed in the first season.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- 160 kg N/fede0
- Outcome
- root yielde0
- Direction
- increasede0
- Value
- 7.22e0
- Comparator
- 100e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing N rates from 100 up to 160 kg N/fed significantly increased root weight by 16.52% and 24.77%, number of plants at harvest by 4.05 and 2.89 thousand plants/fed and root yield by 7.22 and 8.34 tons/fed in the first and second seasons, respectively.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Raising nitrogen increased root yield by 8.34 tons/fed in the second season.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- 160 kg N/fede0
- Outcome
- root yielde0
- Direction
- increasede0
- Value
- 8.34 tons/fede0
- Comparator
- 100e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing N rates from 100 up to 160 kg N/fed significantly increased root weight by 16.52% and 24.77%, number of plants at harvest by 4.05 and 2.89 thousand plants/fed and root yield by 7.22 and 8.34 tons/fed in the first and second seasons, respectively.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Excessive nitrogen lowered sugar beet sucrose content, juice purity and extractable sucrose.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- Excessive N ratee0
- Outcome
- sucrose content, juice purity and extractable sucrosee0
- Direction
- lowerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Excessive N rate lowered beet quality in terms of sucrose content, juice purity and extractable sucrose.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Increasing nitrogen from 100 to 120 kg/fed increased extractable sugar yield by 29.08% in the first season.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- 120 Kg/fede0
- Outcome
- Extractable sugar yielde0
- Direction
- increasede0
- Value
- 29.08 %e0
- Comparator
- 100e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Extractable sugar yield increased by increasing N rates from 100 to 120 Kg/fed. Such increase amounted to 29.08 % in the first season and 31.97 % in the second one.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Increasing nitrogen from 100 to 120 kg/fed increased extractable sugar yield by 31.97% in the second season.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- 120 Kg/fede0
- Outcome
- Extractable sugar yielde0
- Direction
- increasede0
- Value
- 31.97 %e0
- Comparator
- 100e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Extractable sugar yield increased by increasing N rates from 100 to 120 Kg/fed. Such increase amounted to 29.08 % in the first season and 31.97 % in the second one.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Further nitrogen above 120 kg/fed had no significant effect on sugar yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- nitrogen rate beyond 120 kg N/fede0
- Outcome
- sugar yielde0
- Direction
- no significant effecte0
- Comparator
- 120 kg N/fede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Additional increasing in nitrogen rate beyond 120 kg N/fed had no significant effect on sugar yield.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Splitting nitrogen into four equal doses significantly increased individual root weight and plants at harvest.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- Splitting N rate into 4 equal dosese0
- Outcome
- weight of individual root and number of plants/fed at harveste0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Splitting N rate into 4 equal doses significantly increased weight of individual root and number of plants/fed at harvest.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Late nitrogen application in four doses gave the highest root yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- N splitted into 4 dosese0
- Outcome
- root yield/fede0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Late N application in favour of N splitted into 4 doses gave the highest root yield/fed.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Early nitrogen application in two equal doses improved sucrose, purity and extractable sucrose.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- splitting N in two equal doses at 4-and at 8-leaf stagee0
- Outcome
- sucrose %, purity % and extractable sucrose %e0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early application and splitting N in two equal doses at 4-and at 8-leaf stage improved beet quality traits in terms of sucrose %, purity % and extractable sucrose %.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
Splitting 160 kg N/fed into four equal doses gave the highest root yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- Splitting 160 kg N/fed into 4 equal dosese0
- Outcome
- root yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Splitting 160 kg N/fed into 4 equal doses gave the highest root yield”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
Claim · model-written summary
The authors recommend splitting 120 kg N/fed into four equal doses for high sugar yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarist0
- Treatment
- splitting 120 kg N/fed into 4 equal dosese0
- Outcome
- high sugar yield/fede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“splitting 120 kg N/fed into 4 equal doses was recommended for high sugar yield/fed.”
t0“EFFECT OF NITROGEN RATES AND ITS TIME OF APPLICATION ON PRODUCTIVITY OF SUGAR BEET UNDER SPRINKLE IRRIGATION IN NEWLY RECLAIMED SOILS”
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