Abstract
The objective of this paper was to evaluate the effect of preplant applications of trifluralin on barley stand and yield, and control of grass weeds in field experiments during 1992 and 1993. Factors examined were: (1) crop planting patterns (conventional drill with rows 15 cm apart and deep-seeder drill with rows 25 cm apart), (2) herbicide application times (22 d before sowing and immediately before sowing), and (3) herbicide application. During 1993, hand-weeded plots also were established. Trifluralin applied preplant at 528 g ai/ha reduced weed density and biomass. Weed control was higher under conventional planting than under the deep planting pattern, and there was no effect of the time of application on herbicide efficacy. There was no herbicide injury to the crop, and grain yield was higher in treated than in untreated plots due to successful weed control.
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Claims 5
Claim · model-written summary
Preplant trifluralin at 528 g ai/ha reduced grass weed density and biomass in barley compared with untreated plots.
- Taxon
- Barley
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Hordeum vulgaret0 - Treatment
- Trifluralin applied preplant at 528 g ai/hae1
- Interactor
- grass weedse0weed
- Outcome
- weed density and biomasse1
- Direction
- reducede1
- Comparator
- untreated plotse2
- Setting
- field experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
t0“Barley (Hordeum vulgare)”
e0“control of grass weeds in field experiments during 1992 and 1993”
e1“Trifluralin applied preplant at 528 g ai/ha reduced weed density and biomass”
e2“grain yield was higher in treated than in untreated plots due to successful weed control”
Claim · model-written summary
Weed control was higher under conventional planting than under the deep planting pattern in barley.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- conventional plantinge3
- Outcome
- Weed controle3
- Direction
- highere3
- Comparator
- deep planting patterne3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley (Hordeum vulgare)”
e3“Weed control was higher under conventional planting than under the deep planting pattern”
Claim · model-written summary
The time of herbicide application (22 days before sowing or immediately before sowing) had no effect on herbicide efficacy in barley.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- herbicide application timese6
- Outcome
- herbicide efficacye4
- Direction
- no effecte4
- Comparator
- 22 d before sowinge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley (Hordeum vulgare)”
e4“there was no effect of the time of application on herbicide efficacy”
e6“herbicide application times (22 d before sowing and immediately before sowing)”
Claim · model-written summary
Trifluralin caused no herbicide injury to barley.
- Taxon
- BarleyHordeum vulgaret0
- Outcome
- herbicide injury to the crope5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley (Hordeum vulgare)”
e5“There was no herbicide injury to the crop”
Claim · model-written summary
Preplant trifluralin at 528 g ai/ha increased barley grain yield compared with untreated plots due to successful weed control.
- Taxon
- BarleyHordeum vulgaret0
- Treatment
- Trifluralin applied preplant at 528 g ai/hae1
- Outcome
- grain yielde2
- Direction
- highere2
- Qualifier
- due to successful weed controle2
- Comparator
- untreated plotse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Barley (Hordeum vulgare)”
e1“Trifluralin applied preplant at 528 g ai/ha reduced weed density and biomass”
e2“grain yield was higher in treated than in untreated plots due to successful weed control”
The same questions in other papers
trifluralin · yield · Hordeum vulgare (barley)Results differ
2 in the opposite direction
- negative
- no effect
herbicide · control · Hordeum vulgare (barley)Positive and negative results
1 paper in the same direction as this paper · 3 reporting no difference from an alternative
- positive
- positive
- positive
1 paper more in this group
See all 5 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.