Abstract
A field and an outdoor tray experiment were conducted to determine whether weed control benefits of high sowing rates of perennial ryegrass (Lolium perenne) continue into the second year after sowing Seeds of Scotch thistle (Cirsium vulgare) nodding thistle (Carduus nutans) and hedge mustard (Sisymbrium officinale) were sown into perennial ryegrass swards that were established 12 months earlier at differing densities Emerging weed seedlings were mapped at regular intervals to enable their fate to be followed Weed emergence and survival did not decline with increased ryegrass sowing rates indicating that 12 months after sowing the competitive ability of pasture sown at low density towards weeds equalled that of pasture sown at high density
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Claims 2
Claim · model-written summary
Increasing ryegrass sowing rate did not reduce weed emergence or survival 12 months after sowing.
- Treatment
- increased ryegrass sowing ratese0
- Interactor
- weedse0weed
- Outcome
- Weed emergence and survivale0
- Direction
- did not declinee0
- Qualifier
- 12 months after sowinge0
- Comparator
- pasture sown at low densitye0
LoliumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed emergence and survival did not decline with increased ryegrass sowing rates indicating that 12 months after sowing the competitive ability of pasture sown at low density towards weeds equalled that of pasture sown at high density”
Claim · model-written summary
Pasture sown at low density had equal competitive ability toward weeds to pasture sown at high density after 12 months.
- Taxon
- perennial ryegrass
Lolium perennet0 - Interactor
- weedse0weed
- Outcome
- competitive ability of pasture sown at low density towards weedse0
- Direction
- equallede0
- Comparator
- pasture sown at high densitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“12 months after sowing the competitive ability of pasture sown at low density towards weeds equalled that of pasture sown at high density”
t0“perennial ryegrass (Lolium perenne)”
The same questions in other papers
density · weed · LoliumPositive and negative results
1 reporting no difference from an alternative
- positive
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.