Abstract
The impact of crop rotation, nutrient levels and use of catch crops on effect of E. repens on a sandy soil at Jyndevad on yield of winter wheat (2006), spring barley (2007-2008) and faba bean (2006-2008) was studied in an existing organic crop rotation experiment (Olesen et al., 2000; Rasmussen et al., 2006). Some of the objectives were to determine the yield loss at different levels of infestation of the weed, and to determine whether this relationship was influenced by the treatments. For all crops, the treatments had a high impact on the yield. The two treatments that had no manure applied for up to 12 years consistently had the lowest yields. In spring barley, the two treatments with manure and with catch crops consistently had the highest yields. In faba bean, the treatment with manure and without catch crops had the highest yields. As for the effect of E. repens shoots on yield, in spring barley, there was a larger decrease in the system without grass clover. The same tendency was seen for winter wheat. For spring barley and faba bean, within each system (with or without grass clover), the yield in treatments without manure was less influenced by E. repens than in treatments with manure.
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Claims 8
Claim · model-written summary
Treatments strongly affected yield across the crops.
- Taxon
- winter wheat, spring barley and faba bean
Vicia faba.jpg?width=60)
Hordeum vulgare
Triticum aestivumt0 - Treatment
- treatmentse0
- Outcome
- yielde0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“For all crops, the treatments had a high impact on the yield.”
t0“winter wheat, spring barley and faba bean”
Claim · model-written summary
Treatments without manure for up to 12 years had the lowest yields.
- Taxon
- winter wheat, spring barley and faba beanVicia fabaHordeum vulgareTriticum aestivumt0
- Treatment
- no manure applied for up to 12 yearse0
- Outcome
- yieldse0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The two treatments that had no manure applied for up to 12 years consistently had the lowest yields.”
t0“winter wheat, spring barley and faba bean”
Claim · model-written summary
Spring barley yields were highest with manure and catch crops.
- Taxon
- spring barleyHordeum vulgaree0
- Treatment
- manure and with catch cropse0
- Outcome
- yieldse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In spring barley, the two treatments with manure and with catch crops consistently had the highest yields.”
Claim · model-written summary
Faba bean yield was highest with manure and without catch crops.
- Taxon
- faba beanVicia fabae0
- Treatment
- manure and without catch cropse0
- Outcome
- yieldse0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In faba bean, the treatment with manure and without catch crops had the highest yields.”
Claim · model-written summary
E. repens shoots were associated with a larger spring barley yield decrease without grass clover.
- Taxon
- spring barleyHordeum vulgaree0
- Interactor
- E. repens
Elymus repense0weed - Outcome
- yielde0
- Direction
- larger decreasee0
- Setting
- system without grass clovere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As for the effect of E. repens shoots on yield, in spring barley, there was a larger decrease in the system without grass clover.”
Claim · model-written summary
Winter wheat showed the same tendency for the effect of E. repens on yield without grass clover.
- Taxon
- winter wheatTriticum aestivume0
- Interactor
- E. repensElymus repense1weed
- Outcome
- yielde1
- Direction
- larger decreasee1
- Setting
- system without grass clovere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The same tendency was seen for winter wheat.”
e1“As for the effect of E. repens shoots on yield, in spring barley, there was a larger decrease in the system without grass clover.”
Claim · model-written summary
Without manure, spring barley yield was less influenced by E. repens than with manure.
- Taxon
- spring barleyHordeum vulgaree0
- Treatment
- treatments without manuree0
- Interactor
- E. repensElymus repense0weed
- Outcome
- yielde0
- Direction
- less influencede0
- Comparator
- treatments with manuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For spring barley and faba bean, within each system (with or without grass clover), the yield in treatments without manure was less influenced by E. repens than in treatments with manure.”
Claim · model-written summary
Without manure, faba bean yield was less influenced by E. repens than with manure.
- Taxon
- faba beanVicia fabae0
- Treatment
- treatments without manuree0
- Interactor
- E. repensElymus repense0weed
- Outcome
- yielde0
- Direction
- less influencede0
- Comparator
- treatments with manuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For spring barley and faba bean, within each system (with or without grass clover), the yield in treatments without manure was less influenced by E. repens than in treatments with manure.”
The same questions in other papers
cover crop · yield · Hordeum vulgare (barley)Results differ
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- no effect
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322 papers in the same direction as this paper · 3,115 in the opposite direction
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See all 3,438 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.