Abstract
Clomazone at 0.7 kg ai/ha or more, applied early preplant, completely controlled weeds before planting of no-till soybeans. Under low weed density (57 plants/m 2 in untreated control) in 1985, grass weed control was nearly complete and not affected by clomazone application time. Late-season broadleaf weed control was less with preemergence application of clomazone at 1.1 or 1.4 kg/ha than with an early preplant or early preplant-preemergence split application of the same clomazone rate. Addition of metribuzin at 0.2 kg ai/ha overcame this control deficiency. Under greater weed densities (330 plants/m 2 in untreated control) during 1986 and 1987, early preplant-preemergence split applications gave the greatest control of both grass and broadleaf weeds throughout the growing season. Preemergence application of clomazone failed to completely control common lambsquarters emerged at the time of application. Early preplant applications failed to maintain redroot pigweed control throughout the season. Differences in soybean yield were attributed to differences in weed control. No significant carryover of clomazone residue was detected through greenhouse or field bioassays.
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Claims 9
Claim · model-written summary
Early preplant clomazone at 0.7 kg ai/ha or more completely controlled weeds before soybean planting.
- Taxon
- no-till soybeanse0
- Treatment
- Clomazone at 0.7 kg ai/ha or more, applied early preplante0
- Interactor
- weedse0weed
- Outcome
- weedse0
- Direction
- completely controllede0
Not reportedComparator
Verbatim
e0“Clomazone at 0.7 kg ai/ha or more, applied early preplant, completely controlled weeds before planting of no-till soybeans.”
Claim · model-written summary
Under low weed density in 1985, grass weed control was nearly complete and did not vary with clomazone timing.
- Taxon
- Soybeans
Glycine maxt0 - Treatment
- clomazone application timee0
- Interactor
- grass weede0weed
- Outcome
- grass weed controle0
- Direction
- nearly completee0
- Qualifier
- low weed density (57 plants/m 2 in untreated control) in 1985e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under low weed density (57 plants/m 2 in untreated control) in 1985, grass weed control was nearly complete and not affected by clomazone application time.”
t0“Soybeans”
Claim · model-written summary
Preemergence clomazone at 1.1 or 1.4 kg/ha gave less late-season broadleaf weed control than early preplant or split application.
- Taxon
- SoybeansGlycine maxt0
- Treatment
- preemergence application of clomazone at 1.1 or 1.4 kg/hae0
- Interactor
- broadleaf weede0weed
- Outcome
- Late-season broadleaf weed controle0
- Direction
- lesse0
- Comparator
- early preplant or early preplant-preemergence split applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Late-season broadleaf weed control was less with preemergence application of clomazone at 1.1 or 1.4 kg/ha than with an early preplant or early preplant-preemergence split application of the same clomazone rate.”
t0“Soybeans”
Claim · model-written summary
Adding metribuzin at 0.2 kg ai/ha overcame the broadleaf weed control deficiency.
- Taxon
- SoybeansGlycine maxt0
- Treatment
- Addition of metribuzin at 0.2 kg ai/hae0
- Interactor
- broadleaf weede1weed
- Outcome
- control deficiencye0
- Direction
- overcamee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Addition of metribuzin at 0.2 kg ai/ha overcame this control deficiency.”
e1“Late-season broadleaf weed control was less”
t0“Soybeans”
Claim · model-written summary
With greater weed density in 1986–1987, split early preplant-preemergence applications gave greatest season-long grass and broadleaf weed control.
- Taxon
- SoybeansGlycine maxt0
- Treatment
- early preplant-preemergence split applicationse0
- Interactor
- grass and broadleaf weedse0weed
- Outcome
- control of both grass and broadleaf weedse0
- Direction
- greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under greater weed densities (330 plants/m 2 in untreated control) during 1986 and 1987, early preplant-preemergence split applications gave the greatest control of both grass and broadleaf weeds throughout the growing season.”
t0“Soybeans”
Claim · model-written summary
Preemergence clomazone did not completely control common lambsquarters already emerged at application.
- Taxon
- SoybeansGlycine maxt0
- Treatment
- Preemergence application of clomazonee0
- Interactor
- common lambsquarters
Chenopodium albume0weed - Outcome
- common lambsquarterse0
- Direction
- failed to completely controle0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Preemergence application of clomazone failed to completely control common lambsquarters emerged at the time of application.”
t0“Soybeans”
Claim · model-written summary
Early preplant applications did not maintain redroot pigweed control throughout the season.
- Taxon
- SoybeansGlycine maxt0
- Treatment
- Early preplant applicationse0
- Interactor
- redroot pigweede0weed
- Outcome
- redroot pigweed controle0
- Direction
- failed to maintaine0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early preplant applications failed to maintain redroot pigweed control throughout the season.”
t0“Soybeans”
Claim · model-written summary
Soybean yield differences were attributed to differences in weed control.
- Taxon
- soybeanGlycine maxe0
- Interactor
- weede0weed
- Outcome
- soybean yielde0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Differences in soybean yield were attributed to differences in weed control.”
Claim · model-written summary
No significant clomazone carryover was detected in greenhouse or field bioassays.
- Taxon
- SoybeansGlycine maxt0
- Outcome
- carryover of clomazone residuee0
- Direction
- No significante0
- Setting
- greenhouse or field bioassayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No significant carryover of clomazone residue was detected through greenhouse or field bioassays.”
t0“Soybeans”
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See all 297 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.