Abstract
The objective of this research was to evaluate the impact of full and reduced rates of PRE herbicides, applied alone or in combination, on growth and yield of selected April‐planted soybean varieties in the lower Mississippi River alluvial flood plain. Field studies were conducted in 2001 and 2002 at Stoneville, MS, to evaluate the effects of preemergence (PRE) herbicides on growth and yield of early‐planted soybean. Main plot factor was PRE grass herbicide. Sub‐plot factor was PRE broadleaf herbicide. Sub‐sub‐plot factor was soybean variety. Soybean injury 8 weeks after treatment (WAT) in 2001 under cool and wet growing conditions ranged from 11 to 31% when PRE broadleaf herbicides were applied alone. Pendimethalin alone caused 31% soybean injury 8 WAT. Soybean injury with PRE combinations of pendimethalin at 1120 g ai/ha and broadleaf herbicides ranged from 29 to 49%. Soybean injury with flumioxazin alone was 26 to 31% compared to 38 to 49% with mixtures of S‐metolachlor and flumioxazin. Conditions after planting were warmer and drier in 2002 than 2001, but all herbicide treatments still resulted in noticeable soybean injury. Soybean injury from PRE broadleaf herbicides tended to be less with the sulfonylurea‐tolerant soybean (STS) variety, especially in 2001. Averaged across PRE grass herbicides, soybean yield was reduced both years by metribuzin at 694 g ai/ha and sulfentrazone + chlorimuron at 231 + 38 g ai/ha. Averaged across PRE broadleaf herbicides, pendimethalin reduced soybean yield 4% in 2001 and S‐metolachlor reduced soybean yield 3% in 2002.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Broadleaf preemergence herbicides alone caused 11 to 31% soybean injury at 8 WAT in 2001.
- Taxon
- Soybean
Glycine maxe0 - Treatment
- PRE broadleaf herbicidese0
- Outcome
- Soybean injurye0
- Value
- 11 to 31%e0
- Qualifier
- cool and wet growing conditionse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean injury 8 weeks after treatment (WAT) in 2001 under cool and wet growing conditions ranged from 11 to 31% when PRE broadleaf herbicides were applied alone”
Claim · model-written summary
Pendimethalin alone caused 31% soybean injury at 8 WAT.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Pendimethalin alonee0
- Outcome
- soybean injurye0
- Value
- 31%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pendimethalin alone caused 31% soybean injury 8 WAT”
Claim · model-written summary
Pendimethalin and broadleaf herbicide combinations caused 29 to 49% soybean injury.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- PRE combinations of pendimethalin at 1120 g ai/ha and broadleaf herbicidese0
- Outcome
- Soybean injurye0
- Value
- 29 to 49%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean injury with PRE combinations of pendimethalin at 1120 g ai/ha and broadleaf herbicides ranged from 29 to 49%”
Claim · model-written summary
Flumioxazin alone caused 26 to 31% soybean injury, versus 38 to 49% for S-metolachlor mixtures.
- Taxon
- SoybeanGlycine maxe0
- Treatment
- flumioxazin alonee0
- Outcome
- Soybean injurye0
- Value
- 26 to 31%e0
- Qualifier
- 38 to 49%e0
- Comparator
- mixtures of S‐metolachlor and flumioxazine0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean injury with flumioxazin alone was 26 to 31% compared to 38 to 49% with mixtures of S‐metolachlor and flumioxazin”
Claim · model-written summary
All herbicide treatments caused noticeable soybean injury in 2002.
- Taxon
- soybeanGlycine maxe0
- Treatment
- all herbicide treatmentse0
- Outcome
- noticeable soybean injurye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all herbicide treatments still resulted in noticeable soybean injury”
Claim · model-written summary
The STS soybean variety tended to have less broadleaf herbicide injury, especially in 2001.
- Taxon
- soybeanGlycine maxe0
- Material
- sulfonylurea‐tolerant soybean (STS) varietye0
- Treatment
- PRE broadleaf herbicidese0
- Outcome
- Soybean injurye0
- Direction
- lesse0
- Qualifier
- especially in 2001e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soybean injury from PRE broadleaf herbicides tended to be less with the sulfonylurea‐tolerant soybean (STS) variety, especially in 2001”
Claim · model-written summary
Metribuzin reduced soybean yield in both years.
- Taxon
- soybeanGlycine maxe0
- Treatment
- metribuzin at 694 g ai/hae0
- Outcome
- soybean yielde0
- Direction
- reducede0
- Qualifier
- both yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean yield was reduced both years by metribuzin at 694 g ai/ha”
Claim · model-written summary
Sulfentrazone plus chlorimuron reduced soybean yield in both years.
- Taxon
- soybeanGlycine maxe0
- Treatment
- sulfentrazone + chlorimuron at 231 + 38 g ai/hae0
- Outcome
- soybean yielde0
- Direction
- reducede0
- Qualifier
- both yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybean yield was reduced both years by metribuzin at 694 g ai/ha and sulfentrazone + chlorimuron at 231 + 38 g ai/ha”
Claim · model-written summary
Pendimethalin reduced soybean yield 4% in 2001.
- Taxon
- soybeanGlycine maxe0
- Treatment
- pendimethaline0
- Outcome
- soybean yielde0
- Direction
- reducede0
- Value
- 4%e0
- Qualifier
- 2001e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pendimethalin reduced soybean yield 4% in 2001”
Claim · model-written summary
S-metolachlor reduced soybean yield 3% in 2002.
- Taxon
- soybeanGlycine maxe0
- Treatment
- S‐metolachlore0
- Outcome
- soybean yielde0
- Direction
- reducede0
- Value
- 3%e0
- Qualifier
- 2002e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S‐metolachlor reduced soybean yield 3% in 2002”
The same questions in other papers
sulfentrazone · yield · Glycine max (soybean)Results differ
8 papers in the same direction as this paper · 13 in the opposite direction
- negative
- positive
- positive
18 papers more in this group
See all 22 papers →chlorimuron · yield · Glycine max (soybean)Results differ
16 papers in the same direction as this paper · 16 in the opposite direction
- positive
- positive
- positive
29 papers more in this group
See all 33 papers →pendimethalin · yield · Glycine max (soybean)Results differ
9 papers in the same direction as this paper · 37 in the opposite direction
- positive
- positive
- positive
43 papers more in this group
See all 47 papers →metribuzin · yield · Glycine max (soybean)Results differ
23 papers in the same direction as this paper · 37 in the opposite direction
- negative
- no effect
- positive
57 papers more in this group
See all 61 papers →pendimethalin · crop injury · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- positive
- positive
2 papers more in this group
See all 6 papers →flumioxazin · crop injury · Glycine max (soybean)Positive and negative results
3 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
8 papers more in this group
See all 12 papers →herbicide · crop injury · Glycine max (soybean)Results differ
47 papers in the same direction as this paper · 24 in the opposite direction
- negative
- positive
- positive
68 papers more in this group
See all 72 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.