Abstract
Saline soil in general has low nitrogen (N) availability and restricted N uptake. Application of manure and nitrogen fixing bacteria (NFB) in addition to inorganic fertilizer are needed but manure amendment on soil will contribute to increase antibiotic residue in soil. A pot experiment has been conducted to verify the effect of antibiotic-resistance NFB Azotobacter on nitrogen availability and growth of rice seedling in saline soil contaminated with tetracycline and ampicillin. Green house experiment was arranged in factorial Randomized Block Design to examine four concentrations of Azotobacter sp. liquid culture and two kind of generic antibiotic. The first factor was without and with 106 , 107, and 108 CFU g-1 of Azotobacter inoculation, and the second one were antibiotic treatment consisted of tetracycline and ampicillin applied at 1 mg/kg. The results showed that neither Azotobacter nor antibiotic affected plant height, soil pH and EC, as well as Azotobacter population in rice rhizosphere. The interaction effect on both treatment was significant on total nitrogen in soil. This research suggested that Azotobacter maintained soil N when inoculated to soil up to 106 CFU/g and 108 CFU/g irrespective of antibiotic contamination but the bacteria had not yet affect growth of rice seedling in high sodium soil.
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Claims 4
Claim · model-written summary
Neither Azotobacter nor antibiotic affected rice plant height.
- Taxon
- rice
Oryza sativae1 - Treatment
- Azotobactere1
- Interactor
- Azotobacter
Azotobactere1symbiont - Outcome
- plant heighte1
- Direction
- no_changeinferrede1
- Qualifier
- in high sodium soile5
- Setting
- Green housee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“neither Azotobacter nor antibiotic affected plant height, soil pH and EC, as well as Azotobacter population in rice rhizosphere”
e2“Green house experiment was arranged in factorial Randomized Block Design”
e5“the bacteria had not yet affect growth of rice seedling in high sodium soil”
Claim · model-written summary
Neither Azotobacter nor antibiotic affected soil pH, EC or Azotobacter population in the rice rhizosphere.
- Taxon
- riceOryza sativae1
- Treatment
- Azotobactere1
- Interactor
- AzotobacterAzotobactere1symbiont
- Outcome
- soil pH and EC, as well as Azotobacter populatione1
- Direction
- no_changeinferrede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“neither Azotobacter nor antibiotic affected plant height, soil pH and EC, as well as Azotobacter population in rice rhizosphere”
Claim · model-written summary
The interaction of Azotobacter and antibiotic treatments was significant for total nitrogen in soil.
- Taxon
- riceOryza sativae1
- Outcome
- total nitrogen in soile3
- Qualifier
- interaction effect on both treatmente3
- Setting
- Green housee2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“neither Azotobacter nor antibiotic affected plant height, soil pH and EC, as well as Azotobacter population in rice rhizosphere”
e2“Green house experiment was arranged in factorial Randomized Block Design”
e3“The interaction effect on both treatment was significant on total nitrogen in soil”
Claim · model-written summary
Azotobacter inoculation up to 106 and 108 CFU/g maintained soil nitrogen irrespective of antibiotic contamination.
- Taxon
- riceOryza sativae1
- Treatment
- inoculated to soil up to 106 CFU/g and 108 CFU/ge4
- Interactor
- AzotobacterAzotobactere4symbiont
- Outcome
- soil Ne4
- Direction
- maintainede4
- Qualifier
- irrespective of antibiotic contaminatione4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“neither Azotobacter nor antibiotic affected plant height, soil pH and EC, as well as Azotobacter population in rice rhizosphere”
e4“Azotobacter maintained soil N when inoculated to soil up to 106 CFU/g and 108 CFU/g irrespective of antibiotic contamination”
The same questions in other papers
Azotobacter · growth · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 11 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →inoculation · Azotobacter · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- no effect
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.