Abstract
Field research to determine the influence of weed control systems in winter barley on subsequently no- till-planted grain sorghum was conducted from 1985 to 1987 in northwest Georgia. Herbicide treatments applied to fully tillered winter barley included 2,4-D, dicamba, metribuzin, oryzalin, oryzalin plus metribuzin, fluoro- chloridone, or thiameturon. None of these herbicides affected barley grain yields compared to nontreated plots. Treatments containing oryzalin reduced johnsongrass fresh weights in the subsequently planted grain sorghum. Oryzalin plus metribuzin, in 1 of 2 yr, resulted in higher seed yields of subsequently planted grain sorghum compared to the other treatments except for oryzalin used alone. Treatments containing paraquat plus propazine plus metolachlor applied to grain sorghum provided good weed control when averaged across barley treatments and resulted in the highest grain sorghum yield. No grain sorghum injury from herbicides used in the previous winter barley crop was observed. Nomenclature: Dicam- ba, 3,6-dichloro-2-methoxybenzoic acid; fluorochlori- done, 3-chloro - 4 - (chloromethyl) - 1 - (3 - trifluorometh- yl)phenyl) - 2 - pyrrolidinone; metribuzin, 4 - amino - 6 - (1,1 - dimethylethyl) - 3 - (methylthio) - 1,2,4 - triazin - 5(4H)-one; oryzalin, 4-(dipropylamino)-3,5-dinitroben- zenesulfonamide; thiameturon, 3-(((((4-methoxy-6-methyl-
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Claims 6
Claim · model-written summary
Previous barley herbicides did not affect barley grain yield.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- herbicidese0
- Outcome
- barley grain yieldse0
- Direction
- None of these herbicides affectede0
- Comparator
- nontreated plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“None of these herbicides affected barley grain yields compared to nontreated plots”
Claim · model-written summary
Oryzalin-containing treatments reduced johnsongrass fresh weight in following sorghum.
- Taxon
- grain sorghum
Sorghum bicolore0 - Treatment
- Treatments containing oryzaline0
- Interactor
- johnsongrass
.jpg?width=60)
Sorghum halepensee0weed - Outcome
- johnsongrass fresh weightse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Treatments containing oryzalin reduced johnsongrass fresh weights in the subsequently planted grain sorghum”
Claim · model-written summary
Oryzalin plus metribuzin raised subsequent sorghum seed yield in one of two years.
- Taxon
- grain sorghumSorghum bicolore0
- Treatment
- Oryzalin plus metribuzine0
- Outcome
- seed yieldse0
- Direction
- highere0
- Qualifier
- 1 of 2 yre0
- Comparator
- other treatments except for oryzalin used alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Oryzalin plus metribuzin, in 1 of 2 yr, resulted in higher seed yields of subsequently planted grain sorghum compared to the other treatments except for oryzalin used alone”
Claim · model-written summary
Paraquat, propazine and metolachlor gave good weed control.
- Taxon
- grain sorghumSorghum bicolore0
- Treatment
- paraquat plus propazine plus metolachlore0
- Outcome
- weed controle0
- Direction
- goode0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments containing paraquat plus propazine plus metolachlor applied to grain sorghum provided good weed control when averaged across barley treatments”
Claim · model-written summary
The paraquat, propazine and metolachlor treatment gave the highest sorghum yield.
- Taxon
- grain sorghumSorghum bicolore0
- Treatment
- paraquat plus propazine plus metolachlore0
- Outcome
- grain sorghum yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments containing paraquat plus propazine plus metolachlor applied to grain sorghum provided good weed control when averaged across barley treatments and resulted in the highest grain sorghum yield”
Claim · model-written summary
Previous barley herbicides caused no observed sorghum injury.
- Taxon
- grain sorghumSorghum bicolore0
- Treatment
- herbicides used in the previous winter barley crope0
- Outcome
- grain sorghum injurye0
- Direction
- No grain sorghum injurye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No grain sorghum injury from herbicides used in the previous winter barley crop was observed”
The same questions in other papers
propazine · yield · Sorghum bicolor (sorghum)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
metribuzin · yield · Sorghum bicolor (sorghum)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
paraquat · yield · Sorghum bicolor (sorghum)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- positive
metolachlor · yield · Sorghum bicolor (sorghum)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
1 paper more in this group
See all 5 papers →oryzalin · Sorghum halepense · Sorghum bicolor (sorghum)Results agree
1 paper in the same direction as this paper
- positive
oryzalin · yield · Sorghum bicolor (sorghum)Results agree
1 paper in the same direction as this paper
- positive
propazine · weed · Sorghum bicolor (sorghum)Results agree
1 paper in the same direction as this paper
- positive
Hordeum vulgare · crop injury · Sorghum bicolor (sorghum)Results agree
1 paper in the same direction as this paper
- no effect
8 of 12 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.