Abstract
An experiment, A, involving dates and methods of application of 2,4‐D (amine) as a preliminary treatment in the renovation of a poor downland permanent pasture, followed by surface cultivations and sowing of S.24 perennial ryegrass and S.100 white clover, was carried out at Hurley between 1953 and 1955. In spite of initial differences in the establishment of S.24 and S.100, pre‐treatment with herbicide had no effect upon the cover of sown and unsown perennial ryegrass and white clover two years later. At this date, perennial ryegrass contributed one‐quarter and one‐eighth, and white clover one‐third and one‐quarter, to the total cover of renovated and unrenovated plots respectively. The increase in dry‐matter yield resulting from renovation was approximately 10 per cent. This was considered small in relation to the estimated improvement in yield brought about by grazing management and manuring in the course of the trial. In experiment B, plots receiving herbicide were given differential management and manurial treatments after spraying in an attempt to control the ingress of undesirable creeping grasses. The results indicated that this ingress could be checked by close grazing soon after spraying.
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Claims 6
Claim · model-written summary
Herbicide pretreatment had no effect on perennial ryegrass cover after two years.
- Taxon
- perennial ryegrass
Lolium perennee0 - Treatment
- pre‐treatment with herbicidee0
- Outcome
- cover of sown and unsown perennial ryegrasse0
- Direction
- no effecte0
- Qualifier
- two years latere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pre‐treatment with herbicide had no effect upon the cover of sown and unsown perennial ryegrass and white clover two years later.”
Claim · model-written summary
Herbicide pretreatment had no effect on white clover cover after two years.
- Taxon
- white clover
Trifolium repense0 - Treatment
- pre‐treatment with herbicidee0
- Outcome
- white clovere0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pre‐treatment with herbicide had no effect upon the cover of sown and unsown perennial ryegrass and white clover two years later.”
Claim · model-written summary
Ryegrass contributed one quarter of renovated cover and one eighth of unrenovated cover.
- Taxon
- perennial ryegrassLolium perennee0
- Outcome
- total covere0
- Value
- one‐quarter and one‐eighthe0
- Comparator
- unrenovated plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“perennial ryegrass contributed one‐quarter and one‐eighth, and white clover one‐third and one‐quarter, to the total cover of renovated and unrenovated plots respectively.”
Claim · model-written summary
White clover contributed one third of renovated cover and one quarter of unrenovated cover.
- Taxon
- white cloverTrifolium repense0
- Outcome
- total covere0
- Value
- one‐third and one‐quartere0
- Comparator
- unrenovated plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“white clover one‐third and one‐quarter, to the total cover of renovated and unrenovated plots respectively.”
Claim · model-written summary
Renovation increased dry matter yield by approximately 10 percent.
- Taxon
- perennial ryegrassLolium perennet0
- Treatment
- renovatione0
- Outcome
- dry‐matter yielde0
- Direction
- increasee0
- Value
- 10 per cente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increase in dry‐matter yield resulting from renovation was approximately 10 per cent.”
t0“sowing of S.24 perennial ryegrass and S.100 white clover”
Claim · model-written summary
Close grazing after spraying checked ingress of undesirable creeping grasses.
- Taxon
- PERMANENT PASTUREt0
- Treatment
- close grazing soon after sprayinge0
- Outcome
- ingresse0
- Direction
- checkede0
Not reportedComparator
Verbatim
e0“this ingress could be checked by close grazing soon after spraying.”
t0“PERMANENT PASTURE”
The same questions in other papers
herbicide · organism · Lolium perenne (perennial ryegrass)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
herbicide · organism · Trifolium repens (white clover)Results agree
1 paper in the same direction as this paper
- negative
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.