Abstract
Research was conducted for 2 yr at Marianna, AR, to determine whether the fall-planted cover crops rye, wheat, turnip, and a blend of brown and white mustard (Caliente) would aid weed management programs in conservation-tilled, enhanced, glyphosate-resistant cotton. Wheat and rye easily were established both years and turnip and mustard blend stands were better in the second year. The cover crops alone were more suppressive of Palmer amaranth, pitted morningglory, and goosegrass in 2007 than in 2008. Rye was generally superior to wheat in suppressing the three evaluated weeds. Once herbicides were applied, there were seldom differences among cover crops for a particular herbicide program as a result of the highly efficacious herbicide programs. Cotton yields were not affected by wheat, rye, or the mustard blend, but yields were lowest in plots that followed turnip both years, possibly because of allelopathy. Integration of cover crops, especially cereals, into conservation-tilled, glyphosate-resistant cotton aided early-season weed management and could reduce the selection of glyphosate for herbicide resistance.
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Claims 10
Claim · model-written summary
Wheat and rye established easily in both years.
- Taxon
- Wheat
Triticum aestivume0 - Outcome
- easily were establishede0
- Qualifier
- both yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat and rye easily were established both years”
Claim · model-written summary
Turnip and mustard blend stands were better in the second year.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- turnip and mustard blende0
- Outcome
- stands were bettere0
- Direction
- bettere0
- Qualifier
- second yeare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“turnip and mustard blend stands were better in the second year”
t0“Cotton”
Claim · model-written summary
Cover crops suppressed Palmer amaranth more in 2007 than 2008.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- cover crops alonee0
- Outcome
- Palmer amaranthe0
- Direction
- more suppressivee0
- Comparator
- 2008e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cover crops alone were more suppressive of Palmer amaranth, pitted morningglory, and goosegrass in 2007 than in 2008”
t0“Cotton”
Claim · model-written summary
Cover crops suppressed pitted morningglory more in 2007 than 2008.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- cover crops alonee0
- Outcome
- pitted morningglorye0
- Direction
- more suppressivee0
- Comparator
- 2008e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cover crops alone were more suppressive of Palmer amaranth, pitted morningglory, and goosegrass in 2007 than in 2008”
t0“Cotton”
Claim · model-written summary
Cover crops suppressed goosegrass more in 2007 than 2008.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- cover crops alonee0
- Outcome
- goosegrasse0
- Direction
- more suppressivee0
- Comparator
- 2008e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The cover crops alone were more suppressive of Palmer amaranth, pitted morningglory, and goosegrass in 2007 than in 2008”
t0“Cotton”
Claim · model-written summary
Rye generally suppressed the three weeds better than wheat.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- Ryee0
- Outcome
- suppressing the three evaluated weedse0
- Direction
- superiore0
- Comparator
- wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rye was generally superior to wheat in suppressing the three evaluated weeds”
t0“Cotton”
Claim · model-written summary
After herbicide application, cover crops seldom differed within herbicide programs.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- cover cropse0
- Outcome
- differencese0
- Direction
- seldom differencese0
- Qualifier
- Once herbicides were appliede0
- Comparator
- among cover cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Once herbicides were applied, there were seldom differences among cover crops for a particular herbicide program”
t0“Cotton”
Claim · model-written summary
Cotton yield was unaffected by wheat, rye or mustard blend cover crops.
- Taxon
- CottonGossypium hirsutume0
- Treatment
- wheat, rye, or the mustard blende0
- Outcome
- yieldse0
- Direction
- not affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton yields were not affected by wheat, rye, or the mustard blend”
Claim · model-written summary
Cotton yield was lowest following turnip in both years.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- turnipe0
- Outcome
- yieldse0
- Direction
- loweste0
- Qualifier
- both yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yields were lowest in plots that followed turnip both years”
t0“Cotton”
Claim · model-written summary
The authors conclude cereal cover crops aid early weed management and could reduce glyphosate resistance selection.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- Integration of cover crops, especially cerealse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Integration of cover crops, especially cereals, into conservation-tilled, glyphosate-resistant cotton aided early-season weed management and could reduce the selection of glyphosate for herbicide resistance”
The same questions in other papers
Triticum aestivum · yield · Gossypium hirsutum (cotton)Positive and negative results
8 papers in the same direction as this paper · 21 in the opposite direction
- negative
- positive
- positive
26 papers more in this group
See all 30 papers →cover crop · organism · Gossypium hirsutum (cotton)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- positive
- no effect
5 papers more in this group
See all 9 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.