Abstract
Summary Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.). Hand‐weeding once at 2 weeks after crop emergence was ineffective, but weeding at 2 and 2 weeks after crop emergence brought yield losses down to 20%. Pre‐emergence application of bifenox and oxadiazon (12 l) and post‐emergence application of molinate + propanil gave crop yields comparable to that of the clean weeded control (91–129%). Grain yields obtained with pre‐emergence application of oxadiazon (25 EC) and post‐emergence applications of propanil, bentazone + propanil, and bifenox alone or as a tank mix with propanil or bentazone were considerably less than those obtained from the clean weeded plots. Bifenox, oxadiazon (12 l) and propanil + molinate gave adequate and persistent weed control (72–97%), and did not damage rice. Oxadiazon (25 EC) gave good weed control but resulted in a serious stand reduction. Post‐emergence application of propanil, propanil + bentazone bifenox alone or as a tank mix with propanil or bentazone had no adverse effect on crop stand, but gave poor control of grasses (0–40%).
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Claims 10
Claim · model-written summary
Unrestricted weed growth causes serious rice yield losses of 60–75%
- Taxon
- rice
Oryza sativae0 - Outcome
- yield lossese0
- Value
- 60–75%e0
- Qualifier
- Unrestricted weed growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.)”
Claim · model-written summary
Pre-emergence bifenox and oxadiazon give rice yields comparable to the clean weeded control
- Taxon
- riceOryza sativae0
- Treatment
- bifenox and oxadiazone1
- Outcome
- crop yieldse1
- Direction
- no_changeinferrede1
- Value
- 91–129%e1
- Comparator
- clean weeded controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.)”
e1“Pre‐emergence application of bifenox and oxadiazon (12 l) and post‐emergence application of molinate + propanil gave crop yields comparable to that of the clean weeded control (91–129%)”
Claim · model-written summary
Bifenox, oxadiazon and propanil plus molinate give adequate and persistent weed control of 72–97%
- Taxon
- riceOryza sativae0
- Outcome
- weed controle2
- Value
- 72–97%e2
- Qualifier
- adequate and persistente2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.)”
e2“Bifenox, oxadiazon (12 l) and propanil + molinate gave adequate and persistent weed control (72–97%), and did not damage rice”
Claim · model-written summary
Bifenox, oxadiazon and propanil plus molinate do not damage rice
- Taxon
- riceOryza sativae0
- Outcome
- damagee2
- Qualifier
- did not damage ricee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.)”
e2“Bifenox, oxadiazon (12 l) and propanil + molinate gave adequate and persistent weed control (72–97%), and did not damage rice”
Claim · model-written summary
Oxadiazon at 25 EC gives good weed control
- Taxon
- riceOryza sativae0
- Treatment
- Oxadiazon (25 EC)e3
- Outcome
- weed controle3
- Qualifier
- goode3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.)”
e3“Oxadiazon (25 EC) gave good weed control but resulted in a serious stand reduction”
Claim · model-written summary
Oxadiazon at 25 EC causes a serious stand reduction in rice
- Taxon
- riceOryza sativae0
- Treatment
- Oxadiazon (25 EC)e3
- Outcome
- stand reductione3
- Qualifier
- seriouse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.)”
e3“Oxadiazon (25 EC) gave good weed control but resulted in a serious stand reduction”
Claim · model-written summary
Post-emergence herbicides give poor control of grasses (0–40%)
- Taxon
- riceOryza sativae0
- Outcome
- control of grassese4
- Value
- 0–40%e4
- Qualifier
- poore4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.)”
e4“had no adverse effect on crop stand, but gave poor control of grasses (0–40%)”
Claim · model-written summary
Post-emergence herbicides have no adverse effect on crop stand
- Taxon
- riceOryza sativae0
- Outcome
- crop stande4
- Qualifier
- had no adverse effecte4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.)”
e4“had no adverse effect on crop stand, but gave poor control of grasses (0–40%)”
Claim · model-written summary
Weeding once at 2 weeks after crop emergence is ineffective
- Taxon
- riceOryza sativae0
- Treatment
- weeding once at 2 weeks after crop emergencee5
- Outcome
- yield lossese0
- Direction
- no_changeinferrede5
- Comparator
- Unrestricted weed growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.)”
e5“weeding once at 2 weeks after crop emergence was ineffective”
Claim · model-written summary
Weeding at 2 and 2 weeks after crop emergence reduces yield losses to 20%
- Taxon
- riceOryza sativae0
- Treatment
- weeding at 2 and 2 weeks after crop emergencee6
- Outcome
- yield lossese6
- Direction
- downe6
- Value
- 20%e6
- Comparator
- Unrestricted weed growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Unrestricted weed growth resulted in serious yield losses (60–75%) in rice ( Oryza saliva L.)”
e6“weeding at 2 and 2 weeks after crop emergence brought yield losses down to 20%”
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See all 802 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.