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 3.5% higher corn yields, and soybeans had up to a 2.9% yield increase with some form of tillage.
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Claims 6
Claim · model-written summary
Corn showed no clear differences between tillage systems in lighter soils under irrigation.
- Taxon
- corn
Zea mays subsp. mayse1
- Treatment
- tillage systemse1
- Outcome
- differences between tillage systemse1
- Direction
- no clear differencese1
- Setting
- lighter soils under irrigatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“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
Soybeans showed no clear differences between tillage systems in lighter soils under irrigation.
- Taxon
- soybeans
Glycine maxe1 - Treatment
- tillage systemse1
- Outcome
- differences between tillage systemse1
- Direction
- no clear differencese1
- Setting
- lighter soils under irrigatione1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“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
In one year out of eight, corn had a yield advantage under any tillage system, which appears related to environmental conditions in the season.
- Taxon
- corn
Zea mays subsp. mayse2
- Treatment
- any tillage systeme2
- Outcome
- yield advantagee2
- Value
- One year out of eight yearse2
- Qualifier
- appears to be related to environmental conditions experienced during the seasone2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“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
In one year out of eight, soybeans had a yield advantage under any tillage system, which appears related to environmental conditions in the season.
- Taxon
- soybeans
Glycine maxe2 - Treatment
- any tillage systeme2
- Outcome
- yield advantagee2
- Value
- One year out of eight yearse2
- Qualifier
- appears to be related to environmental conditions experienced during the seasone2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e2“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
Averaged over all years, deep tillage every or every-other year gave about 3.5% higher corn yields.
- Taxon
- corn
Zea mays subsp. mayse3
- Treatment
- deep tillage either every or every-other yeare3
- Outcome
- corn yieldse3
- Direction
- highere3
- Value
- about 3.5%e3
- Qualifier
- Averaged across all years of the studye3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Averaged across all years of the study, the treatments with deep tillage either every or every-other year had about 3.5% higher corn yields”
Claim · model-written summary
Soybeans had up to a 2.9% yield increase with some form of tillage.
- Taxon
- soybeans
Glycine maxe4 - Treatment
- some form of tillagee4
- Outcome
- yielde4
- Direction
- increasee4
- Value
- up to a 2.9%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“soybeans had up to a 2.9% 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
386 papers more in this group
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.