Abstract
Various 3-yr rotation sequences of 97- and 18-cm row spacings, with appropriate sicklepod control treatments within each row spacing, were implemented to evaluate sicklepod population and soybean yield at two locations. Alachlor plus metribuzin applied preemergence followed by either a postemergence-directed spray of metribuzin plus 2,4-DB or hand hoeing in 97-cm rows consistently reduced sicklepod populations. Reductions with 97-cm rows and preemergence-applied herbicides coupled with cultivation were not as great. At one location, using a split application of metribuzin preplant incorporated followed by preemergence with 18-cm rows reduced sicklepod populations if effective control measures had been used in wide rows the previous year, but the narrow-row treatments did not reduce sicklepod numbers if 18-cm rows had been used previously. Soil-applied metribuzin was more effective under high soil pH conditions, and sicklepod populations were reduced substantially whether the previous row spacing was 18 or 97 cm. After the third year, all plots were planted in 97-cm rows with no herbicides. No differences were found among sicklepod populations with any previous row spacing or sicklepod control program, indicating that, even with 3 yr of effective control, subsequent sicklepod populations were not affected.
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 7
Claim · model-written summary
Alachlor plus metribuzin applied preemergence followed by a postemergence or hand-hoeing programme in 97-cm rows consistently reduced sicklepod populations in soybean.
- Taxon
- soybean
Glycine maxe0 - Treatment
- Alachlor plus metribuzin applied preemergencee1
- Interactor
- sicklepode0weed
- Outcome
- sicklepod populationse1
- Direction
- reducede1
- Setting
- two locationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Various 3-yr rotation sequences of 97- and 18-cm row spacings, with appropriate sicklepod control treatments within each row spacing, were implemented to evaluate sicklepod population and soybean yield at two locations”
e1“Alachlor plus metribuzin applied preemergence followed by either a postemergence-directed spray of metribuzin plus 2,4-DB or hand hoeing in 97-cm rows consistently reduced sicklepod populations”
Claim · model-written summary
Preemergence herbicides coupled with cultivation in 97-cm rows gave smaller reductions in sicklepod than other programmes.
- Taxon
- soybeanGlycine maxe0
- Treatment
- preemergence-applied herbicides coupled with cultivatione2
- Interactor
- sicklepode0weed
- Outcome
- Reductionse2
- Direction
- not as greate2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Various 3-yr rotation sequences of 97- and 18-cm row spacings, with appropriate sicklepod control treatments within each row spacing, were implemented to evaluate sicklepod population and soybean yield at two locations”
e2“Reductions with 97-cm rows and preemergence-applied herbicides coupled with cultivation were not as great”
Claim · model-written summary
At one location, a split metribuzin application with 18-cm rows reduced sicklepod populations if effective control had been used in wide rows the previous year.
- Taxon
- soybeanGlycine maxe0
- Treatment
- split application of metribuzin preplant incorporated followed by preemergence with 18-cm rowse3
- Interactor
- sicklepode0weed
- Outcome
- sicklepod populationse3
- Direction
- reducede3
- Qualifier
- if effective control measures had been used in wide rows the previous yeare3
- Setting
- At one locatione3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Various 3-yr rotation sequences of 97- and 18-cm row spacings, with appropriate sicklepod control treatments within each row spacing, were implemented to evaluate sicklepod population and soybean yield at two locations”
e3“At one location, using a split application of metribuzin preplant incorporated followed by preemergence with 18-cm rows reduced sicklepod populations if effective control measures had been used in wide rows the previous year, but the narrow-row treatments did not reduce sicklepod numbers if 18-cm rows had been used previously”
Claim · model-written summary
Narrow-row treatments did not reduce sicklepod numbers in soybean when 18-cm rows had been used the previous year.
- Taxon
- soybeanGlycine maxe0
- Treatment
- narrow-row treatmentse3
- Interactor
- sicklepode0weed
- Outcome
- sicklepod numberse3
- Direction
- did not reducee3
- Qualifier
- if 18-cm rows had been used previouslye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Various 3-yr rotation sequences of 97- and 18-cm row spacings, with appropriate sicklepod control treatments within each row spacing, were implemented to evaluate sicklepod population and soybean yield at two locations”
e3“At one location, using a split application of metribuzin preplant incorporated followed by preemergence with 18-cm rows reduced sicklepod populations if effective control measures had been used in wide rows the previous year, but the narrow-row treatments did not reduce sicklepod numbers if 18-cm rows had been used previously”
Claim · model-written summary
Soil-applied metribuzin was more effective under high soil pH conditions.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Soil-applied metribuzine4
- Interactor
- sicklepode0weed
- Outcome
- more effectivee4
- Direction
- more effectivee4
- Qualifier
- under high soil pH conditionse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Various 3-yr rotation sequences of 97- and 18-cm row spacings, with appropriate sicklepod control treatments within each row spacing, were implemented to evaluate sicklepod population and soybean yield at two locations”
e4“Soil-applied metribuzin was more effective under high soil pH conditions, and sicklepod populations were reduced substantially whether the previous row spacing was 18 or 97 cm”
Claim · model-written summary
Soil-applied metribuzin substantially reduced sicklepod populations whether the previous row spacing was 18 or 97 cm.
- Taxon
- soybeanGlycine maxe0
- Treatment
- Soil-applied metribuzine4
- Interactor
- sicklepode0weed
- Outcome
- sicklepod populationse4
- Direction
- reduced substantiallye4
- Qualifier
- whether the previous row spacing was 18 or 97 cme4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Various 3-yr rotation sequences of 97- and 18-cm row spacings, with appropriate sicklepod control treatments within each row spacing, were implemented to evaluate sicklepod population and soybean yield at two locations”
e4“Soil-applied metribuzin was more effective under high soil pH conditions, and sicklepod populations were reduced substantially whether the previous row spacing was 18 or 97 cm”
Claim · model-written summary
After three years, previous row spacing and control programmes had no effect on later sicklepod populations in soybean.
- Taxon
- soybeanGlycine maxe0
- Treatment
- previous row spacinge5
- Interactor
- sicklepode0weed
- Outcome
- sicklepod populationse5
- Direction
- No differencese5
- Qualifier
- even with 3 yr of effective controle5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Various 3-yr rotation sequences of 97- and 18-cm row spacings, with appropriate sicklepod control treatments within each row spacing, were implemented to evaluate sicklepod population and soybean yield at two locations”
e5“After the third year, all plots were planted in 97-cm rows with no herbicides. No differences were found among sicklepod populations with any previous row spacing or sicklepod control program, indicating that, even with 3 yr of effective control, subsequent sicklepod populations were not affected”
The same questions in other papers
alachlor · pest · Glycine max (soybean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
metribuzin · pest · Glycine max (soybean)Positive and negative results
1 paper in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
- negative
1 paper more in this group
See all 5 papers →density · pest · Glycine max (soybean)Positive and negative results
2 papers in the same direction as this paper · 3 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →herbicide · pest · Glycine max (soybean)Positive and negative results
17 papers in the same direction as this paper · 14 in the opposite direction · 3 reporting no difference from an alternative
- no effect
- no effect
- no effect
31 papers more in this group
See all 35 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.