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 seven 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% higher corn yields, and soybeans had up to a 3% yield increase with some form of tillage.
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Claims 5
Claim · model-written summary
Tillage systems showed no clear differences for corn in lighter irrigated soils.
- Taxon
- corn
Zea mays subsp. mayst0
- Treatment
- tillage systemse0
- Outcome
- no clear differencese0
- Direction
- no clear differencese0
- Setting
- lighter soils under irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no clear differences between tillage systems for either corn or soybeans in lighter soils under irrigation”
t0“Corn”
Claim · model-written summary
Tillage systems showed no clear differences for soybeans in lighter irrigated soils.
- Taxon
- soybeans
Glycine maxe0 - Treatment
- tillage systemse0
- Outcome
- no clear differencese0
- Direction
- no clear differencese0
- Setting
- lighter soils under irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“no clear differences between tillage systems for either corn or soybeans in lighter soils under irrigation”
Claim · model-written summary
A yield advantage for a tillage system appeared in one of seven years.
- Taxon
- corn or soybeans
Glycine maxZea mays subsp. mayse0
- Outcome
- yield advantagee0
- Value
- One year out of seven yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“One year out of seven years has shown a yield advantage for either corn or soybeans for any tillage system”
Claim · model-written summary
Deep tillage every year or every other year gave about 3% higher corn yields averaged across years.
- Taxon
- corn
Zea mays subsp. mayse0
- Treatment
- deep tillage either every or every-other yeare0
- Outcome
- corn yieldse0
- Direction
- highere0
- Value
- 3%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatments with deep tillage either every or every-other year had about 3% higher corn yields”
Claim · model-written summary
Some form of tillage increased soybean yield by up to 3%.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“soybeans had up to a 3% yield increase with some form of tillage”
The same questions in other papers
tillage · yield · Glycine max (soybean)Positive and negative results
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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
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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.