Abstract
Two split trials with four replications were conducted at the Bangar El- Sukar region, Burg El- Arab, Alex. Governorate, Egypt during 2018/19 and 2019/20 seasons to study the effect of two nitrogen sources fertilizers (ammonium sulphate 20.6% and urea 46%) with three rates (80, 100 and 120 Kg N/ fed.) on growth, yield components and quality characters and nitrogen use efficiency of sugarbeet grow on a clay loam soil. Results showed that significant differences were reported between sources of nitrogen fertilizer in the most plant growth characters, yield components, quality parameters and impurity parameters as well as nitrogen use efficiency (NUE) in the two seasons. Beet plants fertilized with ammonium sulphate as compared with urea significantly exceeded root and top fresh weight, root length, root diameter, leaf area index and total dry matter accumulation per plant as growth parameters, roots, top, gross sugar and white sugar as yield components, percentage of gross sugar, white sugar, quality index as quality parameters and NUE for yields of roots, gross sugar, white sugar and loss sugar in both seasons, and chlorophyll “a” in first season only. On contrary, also, ammonium sulphate significantly decreased concentrations of K, Na, α- amino- N as impurities and loss sugar% as compared with urea in both seasons. Application of different rates of nitrogen fertilizer in the two seasons, significantly affected all tested traits, except loss sugar yield and quality index in the first season only. Application of 120 Kg N/fed. rate recorded the highest values of all tested plant characters, photosynthetic contents, yield components, quality parameters and NUE for gross sugar and white sugar yields. . In addition, the same nitrogen rate produced the lowest values for all impurity parameters measured (K, Na, α- amino- N and AC), loss sugar percent, NUE for roots and loss sugar yields in the both seasons. The interaction between sources and rates of nitrogen fertilizer were significant effect on root length and fresh weight/ plant in first season only, root diameter, chlorophyll “b”, gross sugar yield/ fed. , all quality parameters and NUE for loss sugar yield in the second season only. However, in the two seasons, roots, top and white sugar yields/ fed. and all impurities as well as NUE for roots, gross sugar and white sugar yields were significantly affected by the interaction between sources and rates of nitrogen fertilizer. In general, application ammonium sulphate fertilizer at the rate of 120 Kg N/ fed. was recommended because it recorded the highest root characterse, chlorophyll "b", most yield components and quality traits as well as NUE for gross sugar and white sugar yields, and the lowest loss sugar yield, loss sugar%, NUE for roots yield and all impurities traits.
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Claims 20
Claim · model-written summary
Ammonium sulphate, compared with urea, significantly exceeded root and top fresh weight and root length and root diameter.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- ammonium sulphatee1
- Outcome
- root and top fresh weight, root length, root diametere1
- Direction
- exceedede1
- Comparator
- ureae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e1“Beet plants fertilized with ammonium sulphate as compared with urea significantly exceeded root and top fresh weight, root length, root diameter, leaf area index and total dry matter accumulation per plant as growth parameters, roots, top, gross sugar and white sugar as yield components, percentage of gross sugar, white sugar, quality index as quality parameters and NUE for yields of roots, gross sugar, white sugar and loss sugar in both seasons, and chlorophyll “a” in first season only”
Claim · model-written summary
Ammonium sulphate, compared with urea, significantly exceeded leaf area index and total dry matter accumulation per plant.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- ammonium sulphatee1
- Outcome
- leaf area index and total dry matter accumulation per plante1
- Direction
- exceedede1
- Comparator
- ureae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e1“Beet plants fertilized with ammonium sulphate as compared with urea significantly exceeded root and top fresh weight, root length, root diameter, leaf area index and total dry matter accumulation per plant as growth parameters, roots, top, gross sugar and white sugar as yield components, percentage of gross sugar, white sugar, quality index as quality parameters and NUE for yields of roots, gross sugar, white sugar and loss sugar in both seasons, and chlorophyll “a” in first season only”
Claim · model-written summary
Ammonium sulphate, compared with urea, significantly exceeded roots yield components.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- ammonium sulphatee1
- Outcome
- roots, tope1
- Direction
- exceedede1
- Comparator
- ureae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e1“Beet plants fertilized with ammonium sulphate as compared with urea significantly exceeded root and top fresh weight, root length, root diameter, leaf area index and total dry matter accumulation per plant as growth parameters, roots, top, gross sugar and white sugar as yield components, percentage of gross sugar, white sugar, quality index as quality parameters and NUE for yields of roots, gross sugar, white sugar and loss sugar in both seasons, and chlorophyll “a” in first season only”
Claim · model-written summary
Ammonium sulphate, compared with urea, significantly exceeded gross sugar and white sugar yield components.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- ammonium sulphatee1
- Outcome
- gross sugar and white sugare1
- Direction
- exceedede1
- Comparator
- ureae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e1“Beet plants fertilized with ammonium sulphate as compared with urea significantly exceeded root and top fresh weight, root length, root diameter, leaf area index and total dry matter accumulation per plant as growth parameters, roots, top, gross sugar and white sugar as yield components, percentage of gross sugar, white sugar, quality index as quality parameters and NUE for yields of roots, gross sugar, white sugar and loss sugar in both seasons, and chlorophyll “a” in first season only”
Claim · model-written summary
Ammonium sulphate, compared with urea, significantly exceeded percentage of gross sugar, white sugar and quality index.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- ammonium sulphatee1
- Outcome
- percentage of gross sugar, white sugar, quality indexe1
- Direction
- exceedede1
- Comparator
- ureae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e1“Beet plants fertilized with ammonium sulphate as compared with urea significantly exceeded root and top fresh weight, root length, root diameter, leaf area index and total dry matter accumulation per plant as growth parameters, roots, top, gross sugar and white sugar as yield components, percentage of gross sugar, white sugar, quality index as quality parameters and NUE for yields of roots, gross sugar, white sugar and loss sugar in both seasons, and chlorophyll “a” in first season only”
Claim · model-written summary
Ammonium sulphate, compared with urea, significantly exceeded NUE for yields of roots and gross sugar.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- ammonium sulphatee1
- Outcome
- NUE for yields of roots, gross sugare1
- Direction
- exceedede1
- Comparator
- ureae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e1“Beet plants fertilized with ammonium sulphate as compared with urea significantly exceeded root and top fresh weight, root length, root diameter, leaf area index and total dry matter accumulation per plant as growth parameters, roots, top, gross sugar and white sugar as yield components, percentage of gross sugar, white sugar, quality index as quality parameters and NUE for yields of roots, gross sugar, white sugar and loss sugar in both seasons, and chlorophyll “a” in first season only”
Claim · model-written summary
Ammonium sulphate, compared with urea, significantly exceeded NUE for white sugar and loss sugar yields in both seasons.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- ammonium sulphatee1
- Outcome
- white sugar and loss sugare1
- Direction
- exceedede1
- Qualifier
- in both seasonse1
- Comparator
- ureae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e1“Beet plants fertilized with ammonium sulphate as compared with urea significantly exceeded root and top fresh weight, root length, root diameter, leaf area index and total dry matter accumulation per plant as growth parameters, roots, top, gross sugar and white sugar as yield components, percentage of gross sugar, white sugar, quality index as quality parameters and NUE for yields of roots, gross sugar, white sugar and loss sugar in both seasons, and chlorophyll “a” in first season only”
Claim · model-written summary
Ammonium sulphate, compared with urea, significantly exceeded chlorophyll a in the first season only.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- ammonium sulphatee1
- Outcome
- chlorophyll “a”e1
- Direction
- exceedede1
- Qualifier
- in first season onlye1
- Comparator
- ureae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e1“Beet plants fertilized with ammonium sulphate as compared with urea significantly exceeded root and top fresh weight, root length, root diameter, leaf area index and total dry matter accumulation per plant as growth parameters, roots, top, gross sugar and white sugar as yield components, percentage of gross sugar, white sugar, quality index as quality parameters and NUE for yields of roots, gross sugar, white sugar and loss sugar in both seasons, and chlorophyll “a” in first season only”
Claim · model-written summary
Ammonium sulphate, compared with urea, significantly decreased concentrations of K, Na and alpha-amino-N impurities.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- ammonium sulphatee4
- Outcome
- concentrations of K, Na, α- amino- Ne4
- Direction
- decreasede4
- Comparator
- ureae4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e4“On contrary, also, ammonium sulphate significantly decreased concentrations of K, Na, α- amino- N as impurities and loss sugar% as compared with urea in both seasons”
Claim · model-written summary
Ammonium sulphate, compared with urea, significantly decreased loss sugar percentage in both seasons.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- ammonium sulphatee4
- Outcome
- loss sugar%e4
- Direction
- decreasede4
- Comparator
- ureae4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e4“On contrary, also, ammonium sulphate significantly decreased concentrations of K, Na, α- amino- N as impurities and loss sugar% as compared with urea in both seasons”
Claim · model-written summary
The 120 kg N/fed. rate gave the highest photosynthetic contents, yield components and quality parameters.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- 120 Kg N/fed. ratee2
- Outcome
- photosynthetic contents, yield components, quality parameterse2
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e2“Application of 120 Kg N/fed. rate recorded the highest values of all tested plant characters, photosynthetic contents, yield components, quality parameters and NUE for gross sugar and white sugar yields”
Claim · model-written summary
The 120 kg N/fed. rate gave the highest NUE for gross sugar and white sugar yields.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- 120 Kg N/fed. ratee2
- Outcome
- NUE for gross sugar and white sugar yieldse2
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e2“Application of 120 Kg N/fed. rate recorded the highest values of all tested plant characters, photosynthetic contents, yield components, quality parameters and NUE for gross sugar and white sugar yields”
Claim · model-written summary
The same 120 kg N/fed. rate gave the lowest values for all impurity parameters measured.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- same nitrogen ratee3
- Outcome
- all impurity parameters measured (K, Na, α- amino- N and AC)e3
- Direction
- loweste3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e3“In addition, the same nitrogen rate produced the lowest values for all impurity parameters measured (K, Na, α- amino- N and AC), loss sugar percent, NUE for roots and loss sugar yields in the both seasons”
Claim · model-written summary
The same 120 kg N/fed. rate gave the lowest loss sugar percentage and NUE for roots and loss sugar yields.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- same nitrogen ratee3
- Outcome
- loss sugar percent, NUE for roots and loss sugar yieldse3
- Direction
- loweste3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e3“In addition, the same nitrogen rate produced the lowest values for all impurity parameters measured (K, Na, α- amino- N and AC), loss sugar percent, NUE for roots and loss sugar yields in the both seasons”
Claim · model-written summary
The authors recommend ammonium sulphate at 120 kg N/fed. for sugarbeet.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Outcome
- application ammonium sulphate fertilizer at the rate of 120 Kg N/ fed. was recommendede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e7“application ammonium sulphate fertilizer at the rate of 120 Kg N/ fed. was recommended”
Claim · model-written summary
The interaction of nitrogen source and rate was significant for root length and fresh weight per plant in the first season only.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- sources and rates of nitrogen fertilizere5
- Outcome
- root length and fresh weight/ plante5
- Qualifier
- in first season onlye5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e5“The interaction between sources and rates of nitrogen fertilizer were significant effect on root length and fresh weight/ plant in first season only”
Claim · model-written summary
The interaction of nitrogen source and rate was significant for root diameter, chlorophyll b and gross sugar yield in the second season.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- sources and rates of nitrogen fertilizere5
- Outcome
- root diameter, chlorophyll “b”, gross sugar yield/ fed.e6
- Qualifier
- in the second season onlye6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e5“The interaction between sources and rates of nitrogen fertilizer were significant effect on root length and fresh weight/ plant in first season only”
e6“root diameter, chlorophyll “b”, gross sugar yield/ fed. , all quality parameters and NUE for loss sugar yield in the second season only”
Claim · model-written summary
The interaction of nitrogen source and rate was significant for all quality parameters and NUE for loss sugar yield in the second season.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- sources and rates of nitrogen fertilizere5
- Outcome
- all quality parameters and NUE for loss sugar yielde6
- Qualifier
- in the second season onlye6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e5“The interaction between sources and rates of nitrogen fertilizer were significant effect on root length and fresh weight/ plant in first season only”
e6“root diameter, chlorophyll “b”, gross sugar yield/ fed. , all quality parameters and NUE for loss sugar yield in the second season only”
Claim · model-written summary
The interaction of nitrogen source and rate was significant for roots, top and white sugar yields per feddan in both seasons.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- sources and rates of nitrogen fertilizere4
- Outcome
- roots, top and white sugar yields/ fed.e4
- Qualifier
- in the two seasonse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e4“in the two seasons, roots, top and white sugar yields/ fed. and all impurities as well as NUE for roots, gross sugar and white sugar yields were significantly affected by the interaction between sources and rates of nitrogen fertilizer”
Claim · model-written summary
The interaction of nitrogen source and rate was significant for all impurities and NUE for roots, gross sugar and white sugar yields in both seasons.
- Taxon
- Sugarbeet
Beta vulgaris subsp. vulgarist0 - Treatment
- sources and rates of nitrogen fertilizere4
- Outcome
- all impurities as well as NUE for roots, gross sugar and white sugar yieldse4
- Qualifier
- in the two seasonse4
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Sugarbeet Growth”
e4“in the two seasons, roots, top and white sugar yields/ fed. and all impurities as well as NUE for roots, gross sugar and white sugar yields were significantly affected by the interaction between sources and rates of nitrogen fertilizer”
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