Abstract
Field studies were conducted to evaluate weed control with paraquat and glyphosate applied at various rates alone and in combination with residual herbicides. Morningglory, prickly sida, and hemp sesbania control 28 d after treatment was similar regardless of herbicide treatment. In contrast, barnyardgrass control when paraquat was tank mixed with pendimethalin plus imazaquin was equal to that of paraquat alone but less than that for tank mixtures with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzin. Barnyardgrass control and soybean yield when paraquat was applied at 1050 g ai/ha in combination with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzin was greater than when the same residual herbicide treatments were applied with paraquat at 350 g/ha. Yield following glyphosate at 840 and 1120 g ai/ha in combination with residual herbicides was no greater than when glyphosate was applied alone, which was reflective of barnyardgrass control. Tank mixtures of glyphosate at 1680 g/ha with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzin resulted in soybean yield higher than for glyphosate alone. Regardless of the glyphosate and residual herbicide combination, soybean yield was no greater than when paraquat was applied at 350 g/ha in combination with metolachlor plus metribuzin plus chlorimuron.
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Claims 8
Claim · model-written summary
Control of morningglory, prickly sida, and hemp sesbania 28 d after treatment was similar regardless of herbicide treatment.
- Taxon
- Glycine max
Glycine maxt0 - Treatment
- herbicide treatmente1
- Interactor
- Morningglorye1weed
- Second interactor
- prickly sidae1weed
- Outcome
- control 28 d after treatmente1
- Direction
- similare1
- Qualifier
- hemp sesbaniae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stale Seedbed Soybean (Glycine max)”
e1“Morningglory, prickly sida, and hemp sesbania control 28 d after treatment was similar regardless of herbicide treatment”
Claim · model-written summary
Barnyardgrass control with paraquat tank mixed with pendimethalin plus imazaquin was equal to that with paraquat alone.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- paraquat was tank mixed with pendimethalin plus imazaquine2
- Interactor
- barnyardgrass
Echinochloa crus-gallie2weed - Outcome
- barnyardgrass controle2
- Direction
- equale2
- Comparator
- paraquat alonee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stale Seedbed Soybean (Glycine max)”
e2“barnyardgrass control when paraquat was tank mixed with pendimethalin plus imazaquin was equal to that of paraquat alone but less than that for tank mixtures with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzin”
Claim · model-written summary
Barnyardgrass control with paraquat tank mixed with pendimethalin plus imazaquin was less than with tank mixtures of metolachlor plus metribuzin, with or without chlorimuron.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- paraquat was tank mixed with pendimethalin plus imazaquine2
- Interactor
- barnyardgrassEchinochloa crus-gallie2weed
- Outcome
- barnyardgrass controle2
- Direction
- less thane2
- Comparator
- tank mixtures with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzine2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stale Seedbed Soybean (Glycine max)”
e2“barnyardgrass control when paraquat was tank mixed with pendimethalin plus imazaquin was equal to that of paraquat alone but less than that for tank mixtures with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzin”
Claim · model-written summary
Barnyardgrass control with paraquat at 1050 g ai/ha plus residual herbicides was greater than with paraquat at 350 g/ha.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- paraquat was applied at 1050 g ai/ha in combination with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzine3
- Interactor
- BarnyardgrassEchinochloa crus-gallie3weed
- Outcome
- Barnyardgrass controle3
- Direction
- greatere3
- Comparator
- paraquat at 350 g/hae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stale Seedbed Soybean (Glycine max)”
e3“Barnyardgrass control and soybean yield when paraquat was applied at 1050 g ai/ha in combination with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzin was greater than when the same residual herbicide treatments were applied with paraquat at 350 g/ha”
Claim · model-written summary
Soybean yield with paraquat at 1050 g ai/ha plus residual herbicides was greater than with paraquat at 350 g/ha.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- paraquat was applied at 1050 g ai/ha in combination with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzine3
- Outcome
- soybean yielde3
- Direction
- greatere3
- Comparator
- paraquat at 350 g/hae3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stale Seedbed Soybean (Glycine max)”
e3“Barnyardgrass control and soybean yield when paraquat was applied at 1050 g ai/ha in combination with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzin was greater than when the same residual herbicide treatments were applied with paraquat at 350 g/ha”
Claim · model-written summary
Yield following glyphosate at 840 and 1120 g ai/ha with residual herbicides was no greater than with glyphosate alone.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- glyphosate at 840 and 1120 g ai/ha in combination with residual herbicidese4
- Outcome
- Yielde4
- Direction
- no greatere4
- Comparator
- glyphosate was applied alonee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stale Seedbed Soybean (Glycine max)”
e4“Yield following glyphosate at 840 and 1120 g ai/ha in combination with residual herbicides was no greater than when glyphosate was applied alone”
Claim · model-written summary
Tank mixtures of glyphosate at 1680 g/ha with metolachlor plus metribuzin plus chlorimuron gave higher soybean yield than glyphosate alone.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- Tank mixtures of glyphosate at 1680 g/ha with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzine5
- Outcome
- soybean yielde5
- Direction
- highere5
- Comparator
- glyphosate alonee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stale Seedbed Soybean (Glycine max)”
e5“Tank mixtures of glyphosate at 1680 g/ha with metolachlor plus metribuzin plus chlorimuron or metolachlor plus metribuzin resulted in soybean yield higher than for glyphosate alone”
Claim · model-written summary
Regardless of the glyphosate and residual herbicide combination, soybean yield was no greater than with paraquat at 350 g/ha.
- Taxon
- Glycine maxGlycine maxt0
- Treatment
- glyphosate and residual herbicide combinatione6
- Outcome
- soybean yielde6
- Direction
- no greatere6
- Comparator
- paraquat was applied at 350 g/hae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Stale Seedbed Soybean (Glycine max)”
e6“Regardless of the glyphosate and residual herbicide combination, soybean yield was no greater than when paraquat was applied at 350 g/ha in combination with metolachlor plus metribuzin plus chlorimuron”
The same questions in other papers
paraquat · yield · Glycine max (soybean)Results differ
4 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- negative
8 papers more in this group
See all 12 papers →metolachlor · yield · Glycine max (soybean)Results differ
16 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
17 papers more in this group
See all 21 papers →chlorimuron · yield · Glycine max (soybean)Results differ
15 papers in the same direction as this paper · 15 in the opposite direction · 2 reporting no difference from an alternative
- positive
- negative
- negative
29 papers more in this group
See all 33 papers →metribuzin · yield · Glycine max (soybean)Results differ
36 papers in the same direction as this paper · 21 in the opposite direction · 3 reporting no difference from an alternative
- positive
- negative
- no effect
57 papers more in this group
See all 61 papers →glyphosate · yield · Glycine max (soybean)Results differ
54 papers in the same direction as this paper · 57 in the opposite direction · 11 reporting no difference from an alternative
- positive
- no effect
- negative
119 papers more in this group
See all 123 papers →pendimethalin · Echinochloa crus-galli · Glycine max (soybean)Positive and negative results
1 in the opposite direction
- positive
metribuzin · Echinochloa crus-galli · Glycine max (soybean)Positive and negative results
1 in the opposite direction
- no effect
metolachlor · Echinochloa crus-galli · Glycine max (soybean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- positive
8 of 13 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.