Abstract
This study was carried out at tobacco Research Institute in Rasht during the cultivation year 2008 in order to investigate on the effects of nitrogen fertilizer level and Azotobacter chroococcum on quantitative and qualitative characteristics of tobacco as a factorial trial and randomized completely block design (RCBD). Four levels of nitrogen fertilizer (non fertilizer, 15, 30 and 45 kgha -1 ) and three levels of Azotobacter chroococcum (non inoculation and 1 and 2 kgha -1 ) with three replications were applied. Results indicated that application of nitrogen fertilizer had significant effect on quantitative characteristics (except number and width of leaf and leaf area index), nitrogen uptake and qualitative characteristics. Application of nitrogen significantly increased dry weight of tobacco in comparison with control treatment (non nitrogen fertilizer). Inoculation of roots with Azotobacter had significant effect on dry weight of priming, the price per kg, nitrogen uptake and qualitative characteristics. Moreover, application of nitrogen fertilizer and Azotobacter significantly increased nitrogen uptake and nicotine and significantly decreased sugar in comparison with the control. In addition, N4B3 (with 45 kgha -1 N fertilizer and 2 kgha -1 bacterium) treatment had maximum content of nicotine in priming, and minimum content of sugar in tips. Furthermore, N3B2 (with 30 kgha -1 N fertilizer and 1 kgha -1 Azotobacter) led to maximum price per kg tobacco. Azotobacter inoculation was economically most efficient at lower doses of fertilizer nitrogen which increased tobacco yield qualitative characteristics.
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Claims 15
Claim · model-written summary
Nitrogen fertilizer significantly affected tobacco quantitative characteristics other than leaf number, width and leaf area index.
- Taxon
- TOBACCO
Nicotiana tabacumt0 - Treatment
- nitrogen fertilizere0
- Outcome
- quantitative characteristicse0
- Qualifier
- except number and width of leaf and leaf area indexe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“application of nitrogen fertilizer had significant effect on quantitative characteristics (except number and width of leaf and leaf area index), nitrogen uptake and qualitative characteristics.”
Claim · model-written summary
Nitrogen fertilizer significantly affected tobacco nitrogen uptake.
- Taxon
- TOBACCONicotiana tabacumt0
- Treatment
- nitrogen fertilizere0
- Outcome
- nitrogen uptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“application of nitrogen fertilizer had significant effect on quantitative characteristics (except number and width of leaf and leaf area index), nitrogen uptake and qualitative characteristics.”
Claim · model-written summary
Nitrogen fertilizer significantly affected tobacco qualitative characteristics.
- Taxon
- TOBACCONicotiana tabacumt0
- Treatment
- nitrogen fertilizere0
- Outcome
- qualitative characteristicse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“application of nitrogen fertilizer had significant effect on quantitative characteristics (except number and width of leaf and leaf area index), nitrogen uptake and qualitative characteristics.”
Claim · model-written summary
Nitrogen fertilizer increased tobacco dry weight over no nitrogen fertilizer.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- nitrogene0
- Outcome
- dry weighte0
- Direction
- increasede0
- Comparator
- non nitrogen fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“Application of nitrogen significantly increased dry weight of tobacco in comparison with control treatment (non nitrogen fertilizer).”
Claim · model-written summary
Azotobacter root inoculation significantly affected priming dry weight.
- Taxon
- TOBACCONicotiana tabacumt0
- Treatment
- Inoculation of roots with Azotobactere0
- Interactor
- Azotobacter
Azotobactere0symbiont - Outcome
- dry weight of priminge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“Inoculation of roots with Azotobacter had significant effect on dry weight of priming, the price per kg, nitrogen uptake and qualitative characteristics.”
Claim · model-written summary
Azotobacter root inoculation significantly affected tobacco price per kg.
- Taxon
- TOBACCONicotiana tabacumt0
- Treatment
- Inoculation of roots with Azotobactere0
- Interactor
- AzotobacterAzotobactere0symbiont
- Outcome
- price per kge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“Inoculation of roots with Azotobacter had significant effect on dry weight of priming, the price per kg, nitrogen uptake and qualitative characteristics.”
Claim · model-written summary
Azotobacter root inoculation significantly affected tobacco nitrogen uptake.
- Taxon
- TOBACCONicotiana tabacumt0
- Treatment
- Inoculation of roots with Azotobactere0
- Interactor
- AzotobacterAzotobactere0symbiont
- Outcome
- nitrogen uptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“Inoculation of roots with Azotobacter had significant effect on dry weight of priming, the price per kg, nitrogen uptake and qualitative characteristics.”
Claim · model-written summary
Azotobacter root inoculation significantly affected tobacco qualitative characteristics.
- Taxon
- TOBACCONicotiana tabacumt0
- Treatment
- Inoculation of roots with Azotobactere0
- Interactor
- AzotobacterAzotobactere0symbiont
- Outcome
- qualitative characteristicse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“Inoculation of roots with Azotobacter had significant effect on dry weight of priming, the price per kg, nitrogen uptake and qualitative characteristics.”
Claim · model-written summary
Combined nitrogen fertilizer and Azotobacter increased nitrogen uptake over control.
- Taxon
- TOBACCONicotiana tabacumt0
- Treatment
- nitrogen fertilizer and Azotobactere0
- Interactor
- AzotobacterAzotobactere0symbiont
- Outcome
- nitrogen uptakee0
- Direction
- increasede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“application of nitrogen fertilizer and Azotobacter significantly increased nitrogen uptake and nicotine and significantly decreased sugar in comparison with the control.”
Claim · model-written summary
Combined nitrogen fertilizer and Azotobacter increased nicotine over control.
- Taxon
- TOBACCONicotiana tabacumt0
- Treatment
- nitrogen fertilizer and Azotobactere0
- Interactor
- AzotobacterAzotobactere0symbiont
- Outcome
- nicotinee0
- Direction
- increasede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“application of nitrogen fertilizer and Azotobacter significantly increased nitrogen uptake and nicotine and significantly decreased sugar in comparison with the control.”
Claim · model-written summary
Combined nitrogen fertilizer and Azotobacter decreased sugar over control.
- Taxon
- TOBACCONicotiana tabacumt0
- Treatment
- nitrogen fertilizer and Azotobactere0
- Interactor
- AzotobacterAzotobactere0symbiont
- Outcome
- sugare0
- Direction
- decreasede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“application of nitrogen fertilizer and Azotobacter significantly increased nitrogen uptake and nicotine and significantly decreased sugar in comparison with the control.”
Claim · model-written summary
N4B3 produced maximum nicotine in priming.
- Taxon
- TOBACCONicotiana tabacumt0
- Organ / stage
- priminge0
- Treatment
- N4B3 (with 45 kgha -1 N fertilizer and 2 kgha -1 bacterium)e0
- Outcome
- content of nicotinee0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“N4B3 (with 45 kgha -1 N fertilizer and 2 kgha -1 bacterium) treatment had maximum content of nicotine in priming”
Claim · model-written summary
N4B3 produced minimum sugar in tips.
- Taxon
- TOBACCONicotiana tabacumt0
- Organ / stage
- tipse0
- Treatment
- N4B3 (with 45 kgha -1 N fertilizer and 2 kgha -1 bacterium)e0
- Outcome
- content of sugare0
- Direction
- minimume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“N4B3 (with 45 kgha -1 N fertilizer and 2 kgha -1 bacterium) treatment had maximum content of nicotine in priming, and minimum content of sugar in tips.”
Claim · model-written summary
N3B2 produced maximum tobacco price per kg.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- N3B2 (with 30 kgha -1 N fertilizer and 1 kgha -1 Azotobacter)e0
- Interactor
- AzotobacterAzotobactere0symbiont
- Outcome
- price per kg tobaccoe0
- Direction
- maximume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“N3B2 (with 30 kgha -1 N fertilizer and 1 kgha -1 Azotobacter) led to maximum price per kg tobacco.”
Claim · model-written summary
Azotobacter inoculation was economically most efficient at lower nitrogen doses.
- Taxon
- tobaccoNicotiana tabacume0
- Treatment
- Azotobacter inoculatione0
- Interactor
- AzotobacterAzotobactere0symbiont
- Outcome
- economically most efficiente0
- Qualifier
- lower doses of fertilizer nitrogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“TOBACCO (NICOTIANA TABACUM L.)”
e0“Azotobacter inoculation was economically most efficient at lower doses of fertilizer nitrogen which increased tobacco yield qualitative characteristics.”
The same questions in other papers
Azotobacter · nutrient: content · Nicotiana tabacum (tobacco)Results agree
1 paper in the same direction as this paper
- positive
nitrogen · growth · Nicotiana tabacum (tobacco)Positive and negative results
55 papers in the same direction as this paper · 17 in the opposite direction
- negative
- negative
- negative
69 papers more in this group
See all 73 papers →fertilization · nutrient: content · Nicotiana tabacum (tobacco)Positive and negative results
91 papers in the same direction as this paper · 8 in the opposite direction
- no effect
- no effect
- no effect
96 papers more in this group
See all 100 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.