Abstract
Using chemical herbicide for weed control in paddy field is an important method in practice at present,In view of the trend that large amount of chemical herbicide is used in paddy field and the amount is increasing year by year,the effects of five kinds of chemical herbicide on rice growth and soil ecology were studied.The result indicated that proper amount of chemical herbicide could control weeds growth and reduce its harm to rice effectively,moreover,its effects on rice growth were not obviouse.But excessive amount of herbicide could influence to some extent the number of rice tillers and yield,even reduce soil microbial quantity and the activity of enzymes in soil,thus reduce the soil quality and its capacity of supplying nutrients,the greater amount of herbicide,the greater effect.
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Claims 6
Claim · model-written summary
Proper herbicide amounts controlled weed growth and reduced weed harm to rice.
- Taxon
- rice
Oryza sativae0 - Treatment
- proper amount of chemical herbicidee0
- Interactor
- weedse0weed
- Outcome
- weeds growth and reduce its harm to ricee0
- Direction
- controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proper amount of chemical herbicide could control weeds growth and reduce its harm to rice effectively”
Claim · model-written summary
Proper herbicide amounts had no obvious effect on rice growth.
- Taxon
- riceOryza sativae0
- Treatment
- proper amount of chemical herbicidee0
- Outcome
- rice growthe0
- Direction
- not obviousee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proper amount of chemical herbicide could control weeds growth and reduce its harm to rice effectively,moreover,its effects on rice growth were not obviouse”
Claim · model-written summary
Excessive herbicide amounts affected rice tiller number and yield.
- Taxon
- riceOryza sativae0
- Treatment
- excessive amount of herbicidee0
- Outcome
- number of rice tillers and yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excessive amount of herbicide could influence to some extent the number of rice tillers and yield”
Claim · model-written summary
Excessive herbicide amounts reduced soil microbial quantity and enzyme activity.
- Taxon
- riceOryza sativae0
- Treatment
- excessive amount of herbicidee0
- Outcome
- soil microbial quantity and the activity of enzymes in soile0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“excessive amount of herbicide could influence to some extent the number of rice tillers and yield,even reduce soil microbial quantity and the activity of enzymes in soil”
Claim · model-written summary
Excessive herbicide amounts reduced soil quality and nutrient supplying capacity.
- Taxon
- riceOryza sativae1
- Treatment
- excessive amount of herbicidee1
- Outcome
- soil quality and its capacity of supplying nutrientse0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thus reduce the soil quality and its capacity of supplying nutrients”
e1“excessive amount of herbicide could influence to some extent the number of rice tillers and yield”
Claim · model-written summary
Greater herbicide amounts had greater effects on soil and rice outcomes.
- Taxon
- riceOryza sativae1
- Treatment
- herbicidee0
- Outcome
- effecte0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the greater amount of herbicide,the greater effect”
e1“number of rice tillers and yield”
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