Abstract
In previous research, summer annual weeds were successfully controlled in no-till corn with between-row mowing systems that consisted of soil-residual preemergence herbicides banded over corn rows followed by mowing weeds close to the soil surface one or two times later during the growing season. The objective of this research was to determine whether between-row mowing systems could successfully control both winter annual and summer annual weeds as well as broadcast herbicides perform in no-till corn. In two of three years in Missouri, between-row mowing systems controlled and reduced both winter annual and summer annual weed cover and prevented weeds from reducing corn yields. Corn yields for the following no-till weed management systems equaled the weed-free check: winter annual weed control with between-row mowing plus preplant, banded, postemergence-applied glyphosate at 1.1 kg ae/ha and later summer annual weed control with postplant, banded, preemergence-applied atrazine plus S-metolachlor at 2.2 plus 1.8 kg ai/ha followed by between-row mowing. Winter annual weeds growing between rows were controlled with one mowing, and later summer annual weeds were controlled with either one late or “middle” mowing or two mowings (i.e., early and late). Total herbicide use was reduced 50% (i.e., 25 and 25%, respectively) in no-till corn. Commercially acceptable corn stands were needed for between-row mowing systems to adequately control weeds. In one of three years when corn stands were half of those of the other two years, broadcast herbicides performed better than between-row mowing systems in no-till corn.Nomenclature: Atrazine, S-metolachlor; corn, Zea mays L. ‘Pioneer 33G28’ ZEAMX
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Claims 8
Claim · model-written summary
In two of three years in Missouri, between-row mowing systems controlled and reduced winter annual and summer annual weed cover in no-till corn.
- Taxon
- Corn
Zea mays subsp. mayst0 - Treatment
- between-row mowing systemse0
- Interactor
- winter annual and summer annual weede0weed
- Outcome
- winter annual and summer annual weed covere0
- Direction
- reducede0
- Qualifier
- In two of three yearse0
- Setting
- Missourie0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In two of three years in Missouri, between-row mowing systems controlled and reduced both winter annual and summer annual weed cover and prevented weeds from reducing corn yields”
t0“No-till Corn”
Claim · model-written summary
Between-row mowing systems prevented weeds from reducing corn yields.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- between-row mowing systemse0
- Interactor
- weedse0weed
- Outcome
- corn yieldse0
- Direction
- no_changeinferrede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“between-row mowing systems controlled and reduced both winter annual and summer annual weed cover and prevented weeds from reducing corn yields”
Claim · model-written summary
Corn yields equaled the weed-free check for winter annual weed control with between-row mowing plus banded glyphosate at 1.1 kg ae/ha followed by summer annual weed control with banded atrazine plus S-metolachlor at 2.2 plus 1.8 kg ai/ha and between-row mowing.
- Taxon
- CornZea mays subsp. mayse1
- Treatment
- winter annual weed control with between-row mowing plus preplant, banded, postemergence-applied glyphosate at 1.1 kg ae/ha and later summer annual weed control with postplant, banded, preemergence-applied atrazine plus S-metolachlor at 2.2 plus 1.8 kg ai/ha followed by between-row mowinge1
- Outcome
- Corn yieldse1
- Direction
- equalede1
- Comparator
- weed-free checke1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Corn yields for the following no-till weed management systems equaled the weed-free check: winter annual weed control with between-row mowing plus preplant, banded, postemergence-applied glyphosate at 1.1 kg ae/ha and later summer annual weed control with postplant, banded, preemergence-applied atrazine plus S-metolachlor at 2.2 plus 1.8 kg ai/ha followed by between-row mowing”
Claim · model-written summary
Winter annual weeds growing between rows were controlled with one mowing.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- one mowinge2
- Interactor
- Winter annual weedse2weed
- Outcome
- Winter annual weeds growing between rows were controllede2
- Direction
- controllede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Winter annual weeds growing between rows were controlled with one mowing”
t0“No-till Corn”
Claim · model-written summary
Later summer annual weeds were controlled with either one late or middle mowing or two mowings (early and late).
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- one late or “middle” mowing or two mowingse3
- Interactor
- summer annual weedse3weed
- Outcome
- summer annual weeds were controllede3
- Direction
- controllede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“later summer annual weeds were controlled with either one late or “middle” mowing or two mowings”
t0“No-till Corn”
Claim · model-written summary
Total herbicide use was reduced by 50% in no-till corn.
- Taxon
- cornZea mays subsp. mayse4
- Outcome
- Total herbicide usee4
- Direction
- reducede4
- Value
- 50%e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“Total herbicide use was reduced 50% (i.e., 25 and 25%, respectively) in no-till corn”
Claim · model-written summary
Commercially acceptable corn stands were needed for between-row mowing systems to control weeds adequately.
- Taxon
- cornZea mays subsp. mayse5
- Outcome
- control weedse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Commercially acceptable corn stands were needed for between-row mowing systems to adequately control weeds”
Claim · model-written summary
In one of three years, when corn stands were half those of the other two years, broadcast herbicides performed better than between-row mowing systems in no-till corn.
- Taxon
- cornZea mays subsp. mayse6
- Treatment
- broadcast herbicidese6
- Outcome
- performede6
- Direction
- bettere6
- Qualifier
- corn stands were half of those of the other two yearse6
- Comparator
- between-row mowing systemse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“In one of three years when corn stands were half of those of the other two years, broadcast herbicides performed better than between-row mowing systems in no-till corn”
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