Abstract
Studies were conducted to evaluate conventional and reduced-tillage systems for winter annual cover crops used for early season weed suppression in green bean ( Phaseolus vulgaris L.) and tomato ( Lycopersicon esculentum Mill.) grown in central Iowa. The tillage systems and cover crops were: 1) conventional tillage annual rye, 2) no-till annual rye, 3) no-till hairy vetch, 4) no-till annual rye + hairy vetch mixture, and 5) conventional tillage in fallow plots. Experimental treatment plots were established as a randomized complete block design with four replications at the Horticulture Research Station near Ames. Early and total yield of green bean were affected by the tillage and cover crop systems. Differences were also observed in pod tenderness. Early tomato yield was influenced by the tillage and cover crop treatments but total yields were similar among all treatments. Soil organic matter and root dry weights were similar among all treatments for both crops.
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Claims 9
Claim · model-written summary
Tillage and cover crop systems affected early green bean yield.
Not reportedComparatorDirection
Verbatim
e0“Early and total yield of green bean were affected by the tillage and cover crop systems.”
Claim · model-written summary
Tillage and cover crop systems affected total green bean yield.
Not reportedComparatorDirection
Verbatim
e0“Early and total yield of green bean were affected by the tillage and cover crop systems.”
Claim · model-written summary
Green bean pod tenderness differed across treatments.
Not reportedComparatorDirection
Verbatim
e0“Differences were also observed in pod tenderness.”
e1“green bean ( Phaseolus vulgaris L.)”
e2“the tillage and cover crop systems”
Claim · model-written summary
Early tomato yield was influenced by tillage and cover crop treatments.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- tillage and cover crop treatmentse0
- Outcome
- Early tomato yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Early tomato yield was influenced by the tillage and cover crop treatments”
Claim · model-written summary
Total tomato yields were similar among treatments.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- tillage and cover crop treatmentse2
- Outcome
- total yieldse0
- Direction
- similare0
- Comparator
- all treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“total yields were similar among all treatments”
e1“tomato ( Lycopersicon esculentum Mill.)”
e2“tillage and cover crop treatments”
Claim · model-written summary
Soil organic matter was similar among all treatments for green bean.
Verbatim
e0“Soil organic matter and root dry weights were similar among all treatments for both crops.”
e1“green bean ( Phaseolus vulgaris L.)”
e2“tillage and cover crop treatments”
Claim · model-written summary
Soil organic matter was similar among all treatments for tomato.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- tillage and cover crop treatmentse2
- Outcome
- Soil organic mattere0
- Direction
- similare0
- Comparator
- all treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Soil organic matter and root dry weights were similar among all treatments for both crops.”
e1“tomato ( Lycopersicon esculentum Mill.)”
e2“tillage and cover crop treatments”
Claim · model-written summary
Root dry weights were similar among all treatments for green bean.
Verbatim
e0“Soil organic matter and root dry weights were similar among all treatments for both crops.”
e1“green bean ( Phaseolus vulgaris L.)”
e2“tillage and cover crop treatments”
Claim · model-written summary
Root dry weights were similar among all treatments for tomato.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- tillage and cover crop treatmentse2
- Outcome
- root dry weightse0
- Direction
- similare0
- Comparator
- all treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Soil organic matter and root dry weights were similar among all treatments for both crops.”
e1“tomato ( Lycopersicon esculentum Mill.)”
e2“tillage and cover crop treatments”
The same questions in other papers
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- positive
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15 papers in the same direction as this paper · 40 reporting no difference from an alternative
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See all 56 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.