Abstract
Results of our survey showed there appear 31 species of weeds in arid rice nursery fields,In Wenzhou, Zhejiang, among which Echinochloa crusgalli, and Digitaria sanguinalis are dominant, and weed communities differ between early or late rice, regions and soils. In the fields E. crusgalli germinates first with a peak at 6-10 d after early rice seeded or 5-6 d after late rice seeded, D. sanguinalis emerges quite late with a peak at 10-20 d for early rice or 6-9 d for late rice, and Amaranthus blitum and Cyperus iria germinate last. In early arid rice nurseries, weeds appear in 2 peaks at 10-12 d and 17-19 d after rice seeded, and barnyardgrass grows quicker than rice with bigger plants. However in late arid rice nurseries, there is only one peak of weed emergence at 6-9 d after rice seeded, and barnyardgrass has similar growth speed.Field trials for weed control showed oxadiazon and a mixture of thiobencarb+bensulfuron methyl are highly effective on weeds and safe to rice. Butachlor is not suggested for weed control in arid rice nurseries due to the damage to rice seedling, although it also has good efficacy on weeds.
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Claims 14
Claim · model-written summary
Thirty-one weed species were found in arid rice nursery fields in Wenzhou, Zhejiang.
- Taxon
- rice
Oryza sativae1
- Interactor
- weedse1weed
- Outcome
- species of weedse1
- Value
- 31 speciese1
- Setting
- Wenzhou, Zhejiange1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“there appear 31 species of weeds in arid rice nursery fields,In Wenzhou, Zhejiang”
Claim · model-written summary
Echinochloa crusgalli and Digitaria sanguinalis were the dominant weeds in arid rice nurseries.
- Taxon
- rice
Oryza sativae1
- Interactor
- Echinochloa crusgalli
Echinochloa crus-gallie2weed - Second interactor
- Digitaria sanguinalis
Digitaria sanguinalise2weed - Outcome
- are dominante2
- Setting
- Wenzhou, Zhejiange1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

.jpg?width=500)
Verbatim
e1“there appear 31 species of weeds in arid rice nursery fields,In Wenzhou, Zhejiang”
e2“among which Echinochloa crusgalli, and Digitaria sanguinalis are dominant”
Claim · model-written summary
Echinochloa crusgalli germinated first, peaking 6-10 d after early rice seeding.
- Taxon
- rice
Oryza sativae1
- Treatment
- early rice seedede1
- Interactor
- E. crusgalli
Echinochloa crus-gallie1weed - Outcome
- germinates firste1
- Value
- 6-10 de1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“In the fields E. crusgalli germinates first with a peak at 6-10 d after early rice seeded or 5-6 d after late rice seeded”
Claim · model-written summary
Digitaria sanguinalis emerged late, peaking 10-20 d after early rice seeding.
- Taxon
- rice
Oryza sativae1
- Treatment
- early ricee2
- Interactor
- D. sanguinalis
Digitaria sanguinalise2weed - Outcome
- emerges quite latee2
- Value
- 10-20 de2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“there appear 31 species of weeds in arid rice nursery fields,In Wenzhou, Zhejiang”
e2“D. sanguinalis emerges quite late with a peak at 10-20 d for early rice or 6-9 d for late rice”
Claim · model-written summary
Amaranthus blitum and Cyperus iria germinated last in arid rice nurseries.
- Taxon
- rice
Oryza sativae1
- Interactor
- Amaranthus blitum
Amaranthus blitume2weed - Second interactor
- Cyperus iria
Cyperus iriae2weed - Outcome
- germinate laste2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
.jpg?width=500)
Verbatim
e1“there appear 31 species of weeds in arid rice nursery fields,In Wenzhou, Zhejiang”
e2“Amaranthus blitum and Cyperus iria germinate last”
Claim · model-written summary
In early arid rice nurseries weeds emerged in two peaks, at 10-12 d and 17-19 d after rice seeding.
- Taxon
- rice
Oryza sativae1
- Treatment
- early arid rice nurseriese1
- Interactor
- weedse1weed
- Outcome
- appear in 2 peakse1
- Value
- 10-12 d and 17-19 de1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In early arid rice nurseries, weeds appear in 2 peaks at 10-12 d and 17-19 d after rice seeded, and barnyardgrass grows quicker than rice with bigger plants”
Claim · model-written summary
In late arid rice nurseries weed emergence had one peak, at 6-9 d after rice seeding.
- Taxon
- rice
Oryza sativae1
- Treatment
- late arid rice nurseriese1
- Interactor
- weedse2weed
- Outcome
- one peak of weed emergencee1
- Value
- 6-9 de1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“However in late arid rice nurseries, there is only one peak of weed emergence at 6-9 d after rice seeded, and barnyardgrass has similar growth speed”
e2“there appear 31 species of weeds in arid rice nursery fields,In Wenzhou, Zhejiang”
Claim · model-written summary
Barnyardgrass grew quicker than rice in early arid rice nurseries.
- Taxon
- rice
Oryza sativae1
- Treatment
- early arid rice nurseriese1
- Interactor
- barnyardgrass
Echinochloa crus-gallie1weed - Outcome
- growse1
- Direction
- quicker than ricee1
- Comparator
- ricee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“In early arid rice nurseries, weeds appear in 2 peaks at 10-12 d and 17-19 d after rice seeded, and barnyardgrass grows quicker than rice with bigger plants”
Claim · model-written summary
Barnyardgrass had similar growth speed in late arid rice nurseries.
- Taxon
- rice
Oryza sativae1
- Treatment
- late arid rice nurseriese1
- Interactor
- barnyardgrass
Echinochloa crus-gallie1weed - Outcome
- growth speede1
- Qualifier
- similar growth speede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“However in late arid rice nurseries, there is only one peak of weed emergence at 6-9 d after rice seeded, and barnyardgrass has similar growth speed”
Claim · model-written summary
Oxadiazon was highly effective on weeds and safe to rice in field trials.
- Taxon
- rice
Oryza sativae1
- Treatment
- oxadiazone1
- Outcome
- weedse1
- Direction
- highly effectivee1
- Qualifier
- safe to ricee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Field trials for weed control showed oxadiazon and a mixture of thiobencarb+bensulfuron methyl are highly effective on weeds and safe to rice”
Claim · model-written summary
A mixture of thiobencarb and bensulfuron methyl was highly effective on weeds and safe to rice in field trials.
- Taxon
- rice
Oryza sativae1
- Treatment
- a mixture of thiobencarb+bensulfuron methyle1
- Outcome
- weedse1
- Direction
- highly effectivee1
- Qualifier
- safe to ricee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Field trials for weed control showed oxadiazon and a mixture of thiobencarb+bensulfuron methyl are highly effective on weeds and safe to rice”
Claim · model-written summary
Butachlor damaged rice seedlings in arid rice nurseries.
- Taxon
- rice
Oryza sativae1
- Treatment
- Butachlore1
- Outcome
- rice seedlinge1
- Direction
- damagee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Butachlor is not suggested for weed control in arid rice nurseries due to the damage to rice seedling, although it also has good efficacy on weeds”
Claim · model-written summary
Butachlor had good efficacy on weeds in arid rice nurseries.
- Taxon
- rice
Oryza sativae1
- Treatment
- Butachlore1
- Outcome
- weedse1
- Direction
- good efficacye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Butachlor is not suggested for weed control in arid rice nurseries due to the damage to rice seedling, although it also has good efficacy on weeds”
Claim · model-written summary
Butachlor is not suggested for weed control in arid rice nurseries.
- Taxon
- rice
Oryza sativae1
- Outcome
- weed controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Butachlor is not suggested for weed control in arid rice nurseries due to the damage to rice seedling, although it also has good efficacy on weeds”
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- negative
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See all 29 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.