Abstract
A long-term experiment in the same site was planted to evaluate potential yield, nematode, and disease problems with tomatoes ( Lycopersicon esculentum Mill.) in a strip-till system. Treatments consisted of conventional tillage (CT) and strip tillage (ST), rye ( Secale cereale L.), wheat ( Triticum aestivum L.), and perennial ryegrass ( Lolium perenne L.) cover crops and a 2-year rye–tomato rotation. Results of the first 5 years indicate a decrease in tomato yield over time for both tillage treatments and cover crops. Tomato yields were lower following wheat and perennial ryegrass than rye. Strip-tillage reduced yield compared to conventional tillage in only 1 year out of 6. Yield increased overall for treatments in 1992, with highest yield in the rye–tomato rotation. Bacterial speck/spot symptoms on foliage, although minor, were significantly greater in ST than in CT plots during the last 3 years. No major consistent trends in incidence and severity of bacterial and fungal diseases and of disorders of fruit were evident during the 5-year period, and neither fruit yield nor quality were significantly affected by these factors. Root-knot nematodes ( Meloidogyne hapla Chitwood) were numerically less numerous in the rye–tomato rotation than in other treatments; both root-knot and root lesion nematodes [ Pratylenchus penetrans (Cobb)] tended to be less numerous under CT than under ST. Tomatoes grown under reduced tillage appear more sensitive to plant parasitic nematodes and preceding cover crops than in conventional tillage.
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Claims 11
Claim · model-written summary
Tomato yield decreased over time under both tillage treatments and cover crops.
- Taxon
- tomatoes
Solanum lycopersicume1 - Outcome
- tomato yielde0
- Direction
- decreasee0
- Qualifier
- both tillage treatments and cover cropse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a decrease in tomato yield over time for both tillage treatments and cover crops”
e1“tomatoes ( Lycopersicon esculentum Mill.)”
Claim · model-written summary
Tomato yields after wheat were lower than after rye.
- Taxon
- TomatoSolanum lycopersicume0
- Treatment
- wheate0
- Outcome
- Tomato yieldse0
- Direction
- lowere0
- Comparator
- ryee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yields were lower following wheat and perennial ryegrass than rye”
Claim · model-written summary
Tomato yields after perennial ryegrass were lower than after rye.
- Taxon
- TomatoSolanum lycopersicume0
- Treatment
- perennial ryegrasse0
- Outcome
- Tomato yieldse0
- Direction
- lowere0
- Comparator
- ryee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato yields were lower following wheat and perennial ryegrass than rye”
Claim · model-written summary
Strip tillage reduced yield versus conventional tillage in one of six years.
- Taxon
- tomatoesSolanum lycopersicume1
- Treatment
- Strip-tillagee0
- Outcome
- yielde0
- Direction
- reducede0
- Qualifier
- only 1 year out of 6e0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Strip-tillage reduced yield compared to conventional tillage in only 1 year out of 6”
e1“tomatoes ( Lycopersicon esculentum Mill.)”
Claim · model-written summary
Yield increased overall in 1992, and was highest in the rye–tomato rotation.
- Taxon
- tomatoesSolanum lycopersicume1
- Treatment
- rye–tomato rotatione0
- Outcome
- Yielde0
- Direction
- increasede0
- Setting
- 1992e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield increased overall for treatments in 1992, with highest yield in the rye–tomato rotation”
e1“tomatoes ( Lycopersicon esculentum Mill.)”
Claim · model-written summary
Bacterial speck/spot foliage symptoms were significantly greater under strip tillage than conventional tillage in the final three years.
- Taxon
- tomatoesSolanum lycopersicume1
- Treatment
- strip tillagee2
- Outcome
- Bacterial speck/spot symptoms on foliagee0
- Direction
- greatere0
- Qualifier
- during the last 3 yearse0
- Comparator
- conventional tillagee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bacterial speck/spot symptoms on foliage, although minor, were significantly greater in ST than in CT plots during the last 3 years”
e1“tomatoes ( Lycopersicon esculentum Mill.)”
e2“conventional tillage (CT) and strip tillage (ST)”
Claim · model-written summary
Disease incidence and severity and fruit disorders showed no consistent trends across five years.
- Taxon
- tomatoesSolanum lycopersicume1
- Outcome
- incidence and severity of bacterial and fungal diseases and of disorders of fruite0
- Direction
- No major consistent trendse0
- Qualifier
- 5-year periode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“No major consistent trends in incidence and severity of bacterial and fungal diseases and of disorders of fruit were evident during the 5-year period”
e1“tomatoes ( Lycopersicon esculentum Mill.)”
Claim · model-written summary
Disease and fruit disorders did not significantly affect tomato fruit yield or quality.
- Taxon
- tomatoesSolanum lycopersicume1
- Treatment
- bacterial and fungal diseasese2
- Outcome
- fruit yield nor qualitye0
- Direction
- neithere0
- Qualifier
- bacterial and fungal diseases and of disorders of fruite2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“neither fruit yield nor quality were significantly affected by these factors”
e1“tomatoes ( Lycopersicon esculentum Mill.)”
e2“bacterial and fungal diseases and of disorders of fruit”
Claim · model-written summary
Root-knot nematodes were numerically less abundant in the rye–tomato rotation.
- Taxon
- tomatoesSolanum lycopersicume1
- Treatment
- rye–tomato rotatione0
- Interactor
- Meloidogyne hapla Chitwood
Meloidogyne haplae0pest - Outcome
- Root-knot nematodese0
- Direction
- less numerouse0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root-knot nematodes ( Meloidogyne hapla Chitwood) were numerically less numerous in the rye–tomato rotation than in other treatments”
e1“tomatoes ( Lycopersicon esculentum Mill.)”
Claim · model-written summary
Root-knot and root-lesion nematodes tended to be less numerous with conventional than strip tillage.
- Taxon
- tomatoesSolanum lycopersicume1
- Treatment
- conventional tillagee2
- Interactor
- Pratylenchus penetrans (Cobb)
Pratylenchus penetranse0pest - Outcome
- root-knot and root lesion nematodese0
- Direction
- less numerouse0
- Comparator
- strip tillagee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“both root-knot and root lesion nematodes [ Pratylenchus penetrans (Cobb)] tended to be less numerous under CT than under ST”
e1“tomatoes ( Lycopersicon esculentum Mill.)”
e2“conventional tillage (CT) and strip tillage (ST)”
Claim · model-written summary
Tomatoes under reduced tillage appeared more sensitive to parasitic nematodes and preceding cover crops.
- Taxon
- TomatoesSolanum lycopersicume0
- Treatment
- reduced tillagee0
- Interactor
- plant parasitic nematodese0pest
- Outcome
- more sensitivee0
- Direction
- more sensitivee0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomatoes grown under reduced tillage appear more sensitive to plant parasitic nematodes and preceding cover crops than in conventional tillage”
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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.