Paper · 2019 · Weed Technology

Overlay of residual herbicides in rice for improved weed management

Matthew J. Osterholt; Eric P. Webster; David C. Blouin; et al.

5
claims
10
verbatim quotes
38
citations
2
research areas
—
Not open access

Abstract

Abstract A study was conducted at the Louisiana State University Agricultural Center’s H. Rouse Caffey Rice Research Station in 2017 and 2018 to evaluate a prepackaged mixture of clomazone plus pendimethalin applied delayed preemergence (DPRE) or POST within an herbicide residual overlay with saflufenacil, clomazone, or quinclorac. POST applications included penoxsulam or halosulfuron in combination with the second residual application. No differences were observed in barnyardgrass control (92% to 98%) at 14 days after treatment (DAT). At 42 DAT, barnyardgrass treated with clomazone plus pendimethalin in combination with either clomazone or quinclorac at either timing was controlled 95% to 96%. However, when saflufenacil was applied PRE, regardless of the POST herbicide or when saflufenacil was applied POST with halosulfuron, barnyardgrass control was reduced to 78% to 81%, compared with 95% to 96% with the control with all other residual combinations. Yellow nutsedge and rice flatsedge control increased when treated with halosulfuron compared with penoxsulam across all evaluation dates. At 28 and 42 DAT, texasweed treated with saflufenacil PRE, regardless of POST applications, was controlled 83% and 87%, respectively, and this was greater control than provided by clomazone or quinclorac applied PRE regardless of POST herbicide program.

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Claims 5

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Saflufenacil applied PRE reduced barnyardgrass control in rice to 78% to 81%, compared with 95% to 96% for all other residual combinations.

Treatment
saflufenacil was applied PREe0
Interactor
barnyardgrassEchinochloa crus-gallie0weed
Outcome
barnyardgrass controle0
Direction
reducede0
Value
78% to 81%e0
Comparator
all other residual combinationse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Echinochloa crus-galli
Echinochloa crus-galli · InteractorMichael Becker · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Overlay of residual herbicides in rice”

✓ located verbatim in the source · title, characters 0–38 · show in text ↑
e0

“when saflufenacil was applied PRE, regardless of the POST herbicide or when saflufenacil was applied POST with halosulfuron, barnyardgrass control was reduced to 78% to 81%, compared with 95% to 96% with the control with all other residual combinations”

✓ located verbatim in the source · abstract, characters 713–965 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Barnyardgrass control in rice was 92% to 98% at 14 days after treatment, with no differences among treatments.

Interactor
barnyardgrassEchinochloa crus-gallie1weed
Outcome
barnyardgrass controle1
Value
92% to 98%e1
Qualifier
at 14 days after treatment (DAT)e1

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Echinochloa crus-galli
Echinochloa crus-galli · InteractorMichael Becker · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Overlay of residual herbicides in rice”

✓ located verbatim in the source · title, characters 0–38 · show in text ↑
e1

“No differences were observed in barnyardgrass control (92% to 98%) at 14 days after treatment (DAT)”

✓ located verbatim in the source · abstract, characters 441–540 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Barnyardgrass in rice was controlled 95% to 96% at 42 DAT by clomazone plus pendimethalin combined with clomazone or quinclorac at either timing.

Treatment
clomazone plus pendimethaline2
Interactor
barnyardgrassEchinochloa crus-gallie2weed
Outcome
controllede2
Value
95% to 96%e2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Echinochloa crus-galli
Echinochloa crus-galli · InteractorMichael Becker · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Overlay of residual herbicides in rice”

✓ located verbatim in the source · title, characters 0–38 · show in text ↑
e2

“At 42 DAT, barnyardgrass treated with clomazone plus pendimethalin in combination with either clomazone or quinclorac at either timing was controlled 95% to 96%”

✓ located verbatim in the source · abstract, characters 542–702 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Texasweed in rice was controlled 83% and 87% at 28 and 42 DAT by saflufenacil PRE, greater control than clomazone or quinclorac applied PRE.

Treatment
saflufenacil PREe3
Interactor
texasweedCaperonia palustrise3weed
Outcome
controle3
Direction
greatere3
Value
83% and 87%e3
Comparator
clomazone or quinclorac applied PREe3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗
Caperonia palustris
Caperonia palustris · Interactorwillingarden · CC BY 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Overlay of residual herbicides in rice”

✓ located verbatim in the source · title, characters 0–38 · show in text ↑
e3

“At 28 and 42 DAT, texasweed treated with saflufenacil PRE, regardless of POST applications, was controlled 83% and 87%, respectively, and this was greater control than provided by clomazone or quinclorac applied PRE”

✓ located verbatim in the source · abstract, characters 1105–1320 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Yellow nutsedge and rice flatsedge control in rice increased with halosulfuron compared with penoxsulam across all evaluation dates.

Treatment
halosulfurone4
Interactor
Yellow nutsedgee4weed
Second interactor
rice flatsedgee4weed
Outcome
controle4
Direction
increasede4
Comparator
penoxsulame4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“Overlay of residual herbicides in rice”

✓ located verbatim in the source · title, characters 0–38 · show in text ↑
e4

“Yellow nutsedge and rice flatsedge control increased when treated with halosulfuron compared with penoxsulam across all evaluation dates”

✓ located verbatim in the source · abstract, characters 967–1103 · show in text ↑

Halosulfuron-methyl · control · Oryza sativa (rice)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive
See all 4 papers →

saflufenacil · Echinochloa crus-galli · Oryza sativa (rice)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. negative
See all 4 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.