Abstract
Summary: Résumé: Zusammenfassung A series of experiments using N‐(phosphonomethyl)glycine (glyphosate) for controlling Agropyron repens (L.) Beauv. is described. Glyphosate, applied to undisturbed stubble in 1971 and 1972 controlled A. repens well. Rotary cultivation 5 weeks (1971) or 8 weeks (1972) prior to treatment, or 8 days after treatment (1972) did not affect the subsequent control. In two out of three experiments control of this weed resulted in significant increases in barley yield. This increase especially in one experiment was partly due to the inability to produce a good seedbed on the untreated control plots because of the vegetation. On the site where no increase in yield was measured, the population of A. repens was much less. Lutte contre l'Agropyron repens (L.) Beauv. dans les chaumes, avec le glyphosate Une série d'essais utilisant la N‐(phosphonométhyl) glycine (glyphosate) pour lutter contre l'Agropyron repens (L) Beauv. sont décrits. Le glyphosate appliqué sur des chaumes non retournés en 1971 et 1972 a fait preuve d'une bonne efficacité contre A. repens. Une façon culturale rotative exécutée 5 semaines (1971) ou 8 semaines (1972) avant le traitement, ou 8 jours après le traitement (1972) n'a pas affecté Fefficacité ultérieure. Dans deux des essais sur trois, l'efficacité contre cette mauvaise herbe s'est traduite par une augmentation significative du rendement de l'orge. Cette augmentation, en particulier dans un essai, a été provoquée en partie par l'impossibilité d'obtenir un bon lit de semence dans les parcelles non traitées, en raison de la végétation. Dans les emplacements où il n'a pas élé constaté d'accroissement de rendement, la population d'A. repens était beaucoup plus faible. Die Bekämpfung von Agropyron repens (i.) Beauv. auf der Stoppel mit Glyphosate Es wird eine Reihe von Versuchen beschrieben, in denen N‐(Phosphonomethyl)glycin (Glyphosate) zur Bekämpfung von Agropyron repens (L) Beauv. eingesetzt wurde. Die Anwendung von Glyphosate in unbearbeiteter Stoppel in den Jahren 1971 und 1972, führte zu einer guten Bekämpfung von A. repens. Fräsen 5 Wochen (1971) bzw. 8 Wochen (1972) vor der Behandlung, oder 8 Tage nach der Behandlung (1972), beeinträchtigte den Bekämpfungserfolg nicht. In zwei von drei Versuchen bewirkte die Queckenbekämpfung einen gesicherten Mehrertrag bei Gerste. Besonders in einem Versuch war dieser Mehrertrag auf die starke Verqueckung in Unbehandelt zurückzuführen, wo eine optimale Bereitung des Saatbetts nicht möglich war. Dort, wo kein Ertragszuwachs festgestellet werden konnte, war die Verseu‐chung mit A. repens viel schwächer.
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Claims 5
Claim · model-written summary
Glyphosate applied to undisturbed barley stubble controlled Agropyron repens well.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree3 - Treatment
- Glyphosatee1
- Interactor
- Agropyron repens
Elymus repenst0weed - Outcome
- A. repense1
- Direction
- controllede1
- Setting
- undisturbed stubblee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e1“Glyphosate, applied to undisturbed stubble in 1971 and 1972 controlled A. repens well”
e3“In two out of three experiments control of this weed resulted in significant increases in barley yield”
t0“Agropyron repens”
Claim · model-written summary
Rotary cultivation before or after glyphosate treatment did not affect the subsequent control of Agropyron repens in barley.
- Taxon
- barleyHordeum vulgaree3
- Treatment
- Rotary cultivatione2
- Interactor
- Agropyron repensElymus repenst0weed
- Outcome
- subsequent controle2
- Direction
- did not affecte2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Rotary cultivation 5 weeks (1971) or 8 weeks (1972) prior to treatment, or 8 days after treatment (1972) did not affect the subsequent control”
e3“In two out of three experiments control of this weed resulted in significant increases in barley yield”
t0“Agropyron repens”
Claim · model-written summary
Weed control with glyphosate significantly increased barley yield in two of three experiments compared with untreated control plots.
- Taxon
- barleyHordeum vulgaree3
- Treatment
- control of this weede3
- Interactor
- Agropyron repensElymus repenst0weed
- Outcome
- barley yielde3
- Direction
- increasese3
- Qualifier
- In two out of three experimentse3
- Comparator
- untreated control plotse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“In two out of three experiments control of this weed resulted in significant increases in barley yield”
e4“on the untreated control plots”
t0“Agropyron repens”
Claim · model-written summary
The barley yield increase in one experiment was partly due to the inability to produce a good seedbed on untreated plots because of the vegetation.
- Taxon
- barleyHordeum vulgaree3
- Outcome
- barley yielde3
- Qualifier
- inability to produce a good seedbede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“In two out of three experiments control of this weed resulted in significant increases in barley yield”
e5“This increase especially in one experiment was partly due to the inability to produce a good seedbed”
Claim · model-written summary
Where no barley yield increase was measured, the population of Agropyron repens was much less.
- Taxon
- barleyHordeum vulgaree3
- Interactor
- Agropyron repensElymus repenst0weed
- Outcome
- population of A. repense6
- Direction
- much lesse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“In two out of three experiments control of this weed resulted in significant increases in barley yield”
e6“On the site where no increase in yield was measured, the population of A. repens was much less”
t0“Agropyron repens”
The same questions in other papers
glyphosate · Elymus repens · Hordeum vulgare (barley)Results agree
1 paper in the same direction as this paper
- 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.