Abstract
Trends from a tillage study conducted since 2011 have shown no clear differences between tillage systems for either corn or soybeans in lighter soils under irrigation. One year out of eight years has shown a yield advantage for either corn or soybeans for any tillage system, which appears to be related to environmental conditions experienced during the season. Averaged across all years of the study, the treatments with deep tillage either every or every-other year had about 4.5% higher corn yields, and soybeans had up to a 3.2% yield increase with some form of tillage.
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Claims 5
Claim · model-written summary
Across the study, tillage systems showed no clear difference for corn in lighter irrigated soils.
- Taxon
- corn
Zea mays subsp. mayse0
- Treatment
- tillage systemse0
- Outcome
- no clear differencese0
- Direction
- no clear differencese0
- Comparator
- between tillage systemse0
- Setting
- lighter soils under irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Trends from a tillage study conducted since 2011 have shown no clear differences between tillage systems for either corn or soybeans in lighter soils under irrigation.”
Claim · model-written summary
Across the study, tillage systems showed no clear difference for soybeans in lighter irrigated soils.
- Taxon
- soybeans
Glycine maxe0 - Treatment
- tillage systemse0
- Outcome
- no clear differencese0
- Direction
- no clear differencese0
- Comparator
- between tillage systemse0
- Setting
- lighter soils under irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Trends from a tillage study conducted since 2011 have shown no clear differences between tillage systems for either corn or soybeans in lighter soils under irrigation.”
Claim · model-written summary
A tillage system gave corn a yield advantage in one of eight years, apparently related to seasonal environmental conditions.
- Taxon
- corn
Zea mays subsp. mayse0
- Outcome
- yield advantagee0
- Direction
- advantagee0
- Qualifier
- One year out of eight yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“One year out of eight years has shown a yield advantage for either corn or soybeans for any tillage system, which appears to be related to environmental conditions experienced during the season.”
Claim · model-written summary
Deep tillage every year or alternate years gave about 4.5% higher average corn yields.
- Taxon
- corn
Zea mays subsp. mayse0
- Treatment
- deep tillage either every or every-other yeare0
- Outcome
- corn yieldse0
- Direction
- highere0
- Value
- about 4.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Averaged across all years of the study, the treatments with deep tillage either every or every-other year had about 4.5% higher corn yields”
Claim · model-written summary
Some form of tillage increased soybean yields by up to 3.2%.
- Taxon
- soybeans
Glycine maxe0 - Treatment
- some form of tillagee0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- up to a 3.2%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“soybeans had up to a 3.2% yield increase with some form of tillage.”
The same questions in other papers
tillage · yield · Glycine max (soybean)Positive and negative results
263 papers in the same direction as this paper · 100 in the opposite direction · 26 reporting no difference from an alternative
- no effect
- no effect
- no effect
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See all 390 papers →tillage · yield · Zea mays (maize)Positive and negative results
811 papers in the same direction as this paper · 230 in the opposite direction · 57 reporting no difference from an alternative
- no effect
- negative
- no effect
1,095 papers more in this group
See all 1,099 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.