Abstract
With the application and promotion of genetically modified crops, the safe of Bt-transgenic crops on soil had become one of the hot spot. In present study, two parallel experiments were conducted to compare the impacts of transgenic cotton on the rhizosphere soil properties in northern China. The results showed that the pH value increased, except for the cotton 33B. Furthermore, the change extent varied with Bt transgenic cotton and non Bt cotton. In addition, organic total carbon、 total nitrogen and available nitrogen decreased, while these of GK-12 increased. In general, the effect was different from cotton cultivar. Available P and K in the rhizosphere zone increased among all cotton cultivars tested, and no significant difference was found between Bt and non-Bt cotton
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Claims 7
Claim · model-written summary
Rhizosphere soil pH increased under the tested cotton cultivars, except for cotton 33B.
- Taxon
- cotton
Gossypium hirsutume1 - Material
- 33Be1
- Outcome
- pH valuee1
- Direction
- increasede1
- Qualifier
- except for the cotton 33Be1
- Setting
- northern Chinae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transgenic cotton on the rhizosphere soil properties in northern China”
e1“the pH value increased, except for the cotton 33B”
Claim · model-written summary
Rhizosphere soil organic carbon, total nitrogen and available nitrogen decreased under the tested cotton cultivars.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- organic total carbon、 total nitrogen and available nitrogene2
- Direction
- decreasede2
- Setting
- northern Chinae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transgenic cotton on the rhizosphere soil properties in northern China”
e2“organic total carbon、 total nitrogen and available nitrogen decreased”
Claim · model-written summary
Rhizosphere soil organic carbon, total nitrogen and available nitrogen increased under cotton GK-12.
- Taxon
- cottonGossypium hirsutume0
- Material
- GK-12e3
- Outcome
- organic total carbon、 total nitrogen and available nitrogene3
- Direction
- increasede3
- Setting
- northern Chinae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transgenic cotton on the rhizosphere soil properties in northern China”
e3“organic total carbon、 total nitrogen and available nitrogen decreased, while these of GK-12 increased”
Claim · model-written summary
Available P and K in the rhizosphere increased among all tested cotton cultivars.
- Taxon
- cottonGossypium hirsutume4
- Material
- all cotton cultivars testede4
- Organ / stage
- rhizosphere zonee4
- Outcome
- Available P and Ke4
- Direction
- increasede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Available P and K in the rhizosphere zone increased among all cotton cultivars tested”
Claim · model-written summary
No significant difference in rhizosphere available P and K was found between Bt and non-Bt cotton.
- Taxon
- cottonGossypium hirsutume5
- Treatment
- Bte5
- Outcome
- Available P and Ke5
- Direction
- no significant differencee5
- Comparator
- non-Bt cottone5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Available P and K in the rhizosphere zone increased among all cotton cultivars tested, and no significant difference was found between Bt and non-Bt cotton”
Claim · model-written summary
The extent of the soil property change varied between Bt transgenic cotton and non-Bt cotton.
- Taxon
- cottonGossypium hirsutume6
- Outcome
- change extente6
- Direction
- variede6
- Comparator
- non Bt cottone6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“the change extent varied with Bt transgenic cotton and non Bt cotton”
Claim · model-written summary
The effect on soil properties differed among cotton cultivars.
- Taxon
- cottonGossypium hirsutume7
- Outcome
- the effecte7
- Direction
- differente7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“the effect was different from cotton cultivar”
The same questions in other papers
transgenic · soil: chemistry · Gossypium hirsutum (cotton)Results agree
1 paper in the same direction as this paper
- negative
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.