Abstract
This study was designed to determine whether tillage systems left in place for significant periods of time develop different weed profiles. No-tillage, reduced tillage, and conventional tillage were placed in a corn/soybean rotation that had been maintained and documented for 15 years. Notillage was the only corn tillage treatment that did not lead yields for at least one year of this three-year trial. No-tillage corn had significantly higher weed pressure from several species, and soybeans had significantly higher levels of giant foxtail with no-tillage. The study also compared ridge and reduced tillage yields and weed profile development; the third year of the study constituted the eighth year that those systems were in place. Ridge tillage soybeans had higher yields and significantly higher weed pressure for a number of species; no trends were detected for corn yields or weeds.
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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
No-tillage corn failed to lead yield in any year of the three-year trial.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- Notillagee0
- Outcome
- yieldse0
- Direction
- did not leade0
- Comparator
- corn tillage treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Notillage was the only corn tillage treatment that did not lead yields for at least one year of this three-year trial”
Claim · model-written summary
No-tillage corn had significantly higher weed pressure for several species.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- No-tillagee0
- Interactor
- several speciese0weed
- Outcome
- weed pressuree0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No-tillage corn had significantly higher weed pressure from several species”
Claim · model-written summary
No-tillage soybeans had significantly more giant foxtail.
- Taxon
- soybeans
Glycine maxe0 - Treatment
- no-tillagee0
- Interactor
- giant foxtaile0weed
- Outcome
- levels of giant foxtaile0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soybeans had significantly higher levels of giant foxtail with no-tillage”
Claim · model-written summary
Ridge tillage soybeans had higher yield.
- Taxon
- soybeansGlycine maxe0
- Treatment
- Ridge tillagee0
- Outcome
- yieldse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ridge tillage soybeans had higher yields”
Claim · model-written summary
Ridge tillage soybeans had significantly higher weed pressure for several species.
- Taxon
- soybeansGlycine maxe0
- Treatment
- Ridge tillagee0
- Interactor
- a number of speciese0weed
- Outcome
- weed pressuree0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ridge tillage soybeans had higher yields and significantly higher weed pressure for a number of species”
Claim · model-written summary
No trend was detected for corn yield under ridge and reduced tillage.
- Taxon
- cornZea mays subsp. mayse0
- Outcome
- corn yieldse0
- Direction
- no trendse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no trends were detected for corn yields or weeds”
Claim · model-written summary
No trend was detected for corn weeds under ridge and reduced tillage.
- Taxon
- cornZea mays subsp. mayse0
- Interactor
- weedse0weed
- Outcome
- weedse0
- Direction
- no trendse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no trends were detected for corn yields or weeds”
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