Abstract
Two field experiments were carried out at Sakha AgriculturalResearch Station, Kafer El-Sheikh Governorate, Egypt during the twosuccessive seasons of 2006/2007 and 2007/2008.These experiments were performed to study the effect ofbiofertilization with some nitrogen fixing bacteria, Azotobacterchrococcum, Bacillus polymyx and either in individual form or inmixture of them. or Azospirillum brasilense this inoculation wasperformed under different levels of N-fertilizer, 25%, 50% and 100%of the recommended dose as well as their interaction on sugar beetplants. obtained results proved that:Application of N-mineral fertilizer led to significant increasesin root dimensions (root length and diameter), tops and root yield,sucrose % of juice and sugar yield. Where using of 80 Kg N/fedraised the values of tops yield by 19.17 and 5.64 % in the 1st seasoncorresponding by 8.64 and 11.62 % in the 2nd season compared with20 and 40 Kg/N /fed. However, this root yield amounted by 47.8%and 23.9 % in the 1st season corresponding by 36.69% and 17.48 % inthe 2nd season. Purity (%) of sugar beet root juice was insignificantlyaffected by the used N-level.Obtained results also revealed that use of these bacteria gavesignificant increases in root dimensions including root length anddiameter, TSS (%), sucrose %and purity of juice, tops and root andsugar yield. Generally, the mixture of three used bacteria gave the bestresults of all parameters under study. The highest values of top androot yield by bacterial mixture treatment were 15.87&37.8 tons/fed in the1st and 2nd respectively season compared with 11.24 and 20.8 tons/fed, Regarding the interaction effect between the two examinedfactors N2-fixing bacteria and N-mineral fertilizer on sugar beet yieldand yield components. Data pointed out that this interaction causedsignificant response of root dimensions, where the bacterial mixturewith 80 kg N/fed produced the maximum values of root length anddiameter which represented 26.48 and 25.40 cm of length and 16.77and 15.93 cm of diameter in the 1st and 2nd season, respectively. Itcould be remarked that the most effective treatment on purity (%) andsugar yield was the combination between the three bacterial strainwith 80 kg/N/fed.
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Claims 8
Claim · model-written summary
Mineral nitrogen significantly increased root dimensions, yields and sucrose percentage.
- Taxon
- SUGAR BEET
Beta vulgaris subsp. vulgarist0 - Treatment
- N-mineral fertilizere0
- Outcome
- root dimensions (root length and diameter), tops and root yield,sucrose % of juice and sugar yielde0
- Direction
- increasesine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SUGAR BEET”
e0“Application of N-mineral fertilizer led to significant increasesin root dimensions (root length and diameter), tops and root yield,sucrose % of juice and sugar yield”
Claim · model-written summary
At 80 kg N/fed, tops yield exceeded the 20 and 40 kg N/fed treatments in both seasons.
- Taxon
- SUGAR BEETBeta vulgaris subsp. vulgarist0
- Treatment
- 80 Kg N/fede0
- Outcome
- tops yielde0
- Direction
- raisede0
- Value
- 19.17 and 5.64 %e0
- Comparator
- 20 and 40 Kg/N /fede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“SUGAR BEET”
e0“80 Kg N/fedraised the values of tops yield by 19.17 and 5.64 % in the 1st seasoncorresponding by 8.64 and 11.62 % in the 2nd season compared with20 and 40 Kg/N /fed”
Claim · model-written summary
Nitrogen level did not significantly affect sugar beet juice purity.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise0
- Treatment
- N-levele0
- Outcome
- Purity (%) of sugar beet root juicee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Purity (%) of sugar beet root juice was insignificantlyaffected by the used N-level”
Claim · model-written summary
Nitrogen-fixing bacteria significantly increased sugar beet root dimensions, juice traits and yields.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- these bacteriae0
- Outcome
- root dimensions including root length anddiameter, TSS (%), sucrose %and purity of juice, tops and root andsugar yielde0
- Direction
- increasese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“use of these bacteria gavesignificant increases in root dimensions including root length anddiameter, TSS (%), sucrose %and purity of juice, tops and root andsugar yield”
e1“sugar beetplants”
Claim · model-written summary
The three-bacterium mixture gave the best results across studied parameters.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- mixture of three used bacteriae0
- Outcome
- bestresults of all parameters under studye0
- Direction
- bestresultse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the mixture of three used bacteria gave the bestresults of all parameters under study”
e1“sugar beetplants”
Claim · model-written summary
The bacterial mixture with 80 kg N/fed maximized root length.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- bacterial mixturewith 80 kg N/fede0
- Outcome
- root lengthe0
- Direction
- maximume0
- Value
- 26.48 and 25.40 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bacterial mixturewith 80 kg N/fed produced the maximum values of root length anddiameter which represented 26.48 and 25.40 cm of length and 16.77and 15.93 cm of diameter in the 1st and 2nd season, respectively”
e1“sugar beet yieldand yield components”
Claim · model-written summary
The bacterial mixture with 80 kg N/fed maximized root diameter.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- bacterial mixturewith 80 kg N/fede0
- Outcome
- diametere0
- Direction
- maximume0
- Value
- 16.77and 15.93 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the bacterial mixturewith 80 kg N/fed produced the maximum values of root length anddiameter which represented 26.48 and 25.40 cm of length and 16.77and 15.93 cm of diameter in the 1st and 2nd season, respectively”
e1“sugar beet yieldand yield components”
Claim · model-written summary
The three-strain bacterial mixture with 80 kg N/fed was the most effective for purity and sugar yield.
- Taxon
- sugar beetBeta vulgaris subsp. vulgarise1
- Treatment
- combination between the three bacterial strainwith 80 kg/N/fede0
- Outcome
- purity (%) andsugar yielde0
- Direction
- most effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most effective treatment on purity (%) andsugar yield was the combination between the three bacterial strainwith 80 kg/N/fed”
e1“sugar beet yieldand yield components”
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