Abstract
Two field experiments were conducted at Cairo University, Agric, Experimental Station, during 2001102 and 2002/03 seasons on clay loam soil. The objective was to describe yield and quality in response to different nitrogen fertilization rates (0, 30, 60, 90 and 120 kg N/fed) and harvesting dates 180, 195 and 210 days from sowing). Results revealed that increasing nitrogen level up to 120 kg N/fed increased root diameter, root length, root weight/plant and LAI, white reduced quality traits in terms, of sucrose, purity, recoverable sucrose and quality of beet % ¡n both seasons. Impurities in terms of Na, K and amino-N increased with increasing nitrogen rate up to 120 kg N/fed. Sucrose loss to molasses increased significantly with the increase in nitrogen level. Addition of 120 kg N/fed gave the highest root and top yield, while 90 kg N/fed gave the highest recoverable sugar yield ton/fed. Delaying harvest date up to 210 days from sowing increased root diameter, root length and root weight, but decreased LAI. Sucrose, purity, recoverabie sucrose and quality percentages as well as impurities were increased with the delay ¡ri harvest. Delaying harvest date up to 210 days from sowing decreased sucrose loss to molasses from 2.10 and 2.25 % after 180 days to 1 .87 and 2.01 % after 210 days in both seasons, respectively. Delaying date of harvest up to 210 days after sowing caused a significant increase in root yield of 11.6% (from 21.6 to 24.1 ton/fed) on the average of both seasons. While top yield decreased with delay harvest date. Recoverable sucrose yie’d increased from 2.34 and 2.49 ton / fed when harvest took place after 180 days to 3.19 and 3.30 ton/fed when harvest after 210 days from sowing. Nitroge.i levels x harvesting dates interactions exhibited significant effect on root diameter, root weight and LAI as well as sucrose, recoverable sucrose and quality percentages. The highest root yield 30.4 ton/fed resulted from adding 120 kg N/fed with harvest after 120 days from sowing in the second season, while the highest recoverable sugar yield (3.73 and 3.80 ton/fed) resulted from 90 kg N/fed and harvest toro variety at 210 days from sowing, in both seasons, respectively.
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Claims 17
Claim · model-written summary
Increasing nitrogen to 120 kg N/fed increased root dimensions, weight, and leaf area index.
- Taxon
- SUGAR BEET
Beta vulgaris subsp. vulgarist0 - Treatment
- nitrogen level up to 120 kg N/fede0
- Outcome
- root diameter, root length, root weight/plant and LAIe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing nitrogen level up to 120 kg N/fed increased root diameter, root length, root weight/plant and LAI”
t0“SUGAR BEET”
Claim · model-written summary
Increasing nitrogen reduced sucrose, purity, recoverable sucrose, and beet quality.
- Taxon
- beet
Beta vulgarise0 - Treatment
- nitrogen level up to 120 kg N/fede0
- Outcome
- sucrose, purity, recoverable sucrose and quality of beet %e0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increasing nitrogen level up to 120 kg N/fed increased root diameter, root length, root weight/plant and LAI, white reduced quality traits in terms, of sucrose, purity, recoverable sucrose and quality of beet %”
Claim · model-written summary
Increasing nitrogen raised Na, K, and amino-N impurities.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- increasing nitrogen rate up to 120 kg N/fede0
- Outcome
- Impurities in terms of Na, K and amino-Ne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Impurities in terms of Na, K and amino-N increased with increasing nitrogen rate up to 120 kg N/fed”
t0“SUGAR BEET”
Claim · model-written summary
Sucrose loss to molasses increased significantly with nitrogen level.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- increase in nitrogen levele0
- Outcome
- Sucrose loss to molassese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sucrose loss to molasses increased significantly with the increase in nitrogen level”
t0“SUGAR BEET”
Claim · model-written summary
The 120 kg N/fed rate produced the highest root and top yields.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- 120 kg N/fede0
- Outcome
- root and top yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of 120 kg N/fed gave the highest root and top yield”
t0“SUGAR BEET”
Claim · model-written summary
The 90 kg N/fed rate produced the highest recoverable sugar yield.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- 90 kg N/fede0
- Outcome
- recoverable sugar yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“90 kg N/fed gave the highest recoverable sugar yield ton/fed”
t0“SUGAR BEET”
Claim · model-written summary
Delaying harvest to 210 days increased root diameter, length, and weight.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- Delaying harvest date up to 210 days from sowinge0
- Outcome
- root diameter, root length and root weighte0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delaying harvest date up to 210 days from sowing increased root diameter, root length and root weight”
t0“SUGAR BEET”
Claim · model-written summary
Delayed harvest decreased leaf area index.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Outcome
- LAIe0
- Direction
- decreasede0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but decreased LAI”
t0“SUGAR BEET”
Claim · model-written summary
Delayed harvest increased sucrose, purity, recoverable sucrose, quality, and impurities.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- delay ¡ri harveste0
- Outcome
- Sucrose, purity, recoverabie sucrose and quality percentages as well as impuritiese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sucrose, purity, recoverabie sucrose and quality percentages as well as impurities were increased with the delay ¡ri harvest”
t0“SUGAR BEET”
Claim · model-written summary
Delayed harvest reduced sucrose loss to molasses.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- Delaying harvest date up to 210 days from sowinge0
- Outcome
- sucrose loss to molassese0
- Direction
- decreasede0
- Comparator
- 180 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delaying harvest date up to 210 days from sowing decreased sucrose loss to molasses from 2.10 and 2.25 % after 180 days to 1 .87 and 2.01 % after 210 days”
t0“SUGAR BEET”
Claim · model-written summary
Harvest at 210 days raised root yield by 11.6%.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- harvest up to 210 days after sowinge0
- Outcome
- root yielde0
- Direction
- increasee0
- Value
- 11.6%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delaying date of harvest up to 210 days after sowing caused a significant increase in root yield of 11.6% (from 21.6 to 24.1 ton/fed)”
t0“SUGAR BEET”
Claim · model-written summary
Delayed harvest reduced top yield.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- delay harvest datee0
- Outcome
- top yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“top yield decreased with delay harvest date”
t0“SUGAR BEET”
Claim · model-written summary
Harvest at 210 days increased recoverable sucrose yield compared with 180 days.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- 210 days from sowinge0
- Outcome
- Recoverable sucrose yie’de0
- Direction
- increasede0
- Value
- 3.19 and 3.30 ton/fede0
- Comparator
- 180 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recoverable sucrose yie’d increased from 2.34 and 2.49 ton / fed when harvest took place after 180 days to 3.19 and 3.30 ton/fed when harvest after 210 days from sowing”
t0“SUGAR BEET”
Claim · model-written summary
Nitrogen rate and harvest date interacted significantly for root diameter, root weight, and LAI.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- Nitroge.i levels x harvesting datese0
- Outcome
- root diameter, root weight and LAIe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitroge.i levels x harvesting dates interactions exhibited significant effect on root diameter, root weight and LAI”
t0“SUGAR BEET”
Claim · model-written summary
Nitrogen rate and harvest date interacted significantly for sucrose, recoverable sucrose, and quality.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- Nitroge.i levels x harvesting datese0
- Outcome
- sucrose, recoverable sucrose and quality percentagese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitroge.i levels x harvesting dates interactions exhibited significant effect on root diameter, root weight and LAI as well as sucrose, recoverable sucrose and quality percentages”
t0“SUGAR BEET”
Claim · model-written summary
The maximum root yield was 30.4 ton/fed under 120 kg N/fed and harvest after 120 days.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- 120 kg N/fede0
- Outcome
- root yielde0
- Direction
- higheste0
- Value
- 30.4 ton/fede0
- Qualifier
- harvest after 120 days from sowinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest root yield 30.4 ton/fed resulted from adding 120 kg N/fed with harvest after 120 days from sowing in the second season”
t0“SUGAR BEET”
Claim · model-written summary
The maximum recoverable sugar yields were 3.73 and 3.80 ton/fed with 90 kg N/fed and harvest at 210 days.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- 90 kg N/fede0
- Outcome
- recoverable sugar yielde0
- Direction
- higheste0
- Value
- 3.73 and 3.80 ton/fede0
- Qualifier
- 210 days from sowinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest recoverable sugar yield (3.73 and 3.80 ton/fed) resulted from 90 kg N/fed and harvest toro variety at 210 days from sowing”
t0“SUGAR BEET”
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