Abstract
Established stands of alfalfa ( Medicago sativa L.) at two field locations were treated at one date in the fall with pronamide [3,5-dichloro ( N -1,1-dimethyl-2-propynil) benzamide] at 0.8 and 1.6 kg ai/ha and at two dates in the spring with sethoxydim {2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one} at 0.3 and 0.6 kg ai/ha for the control of quackgrass [ Agropyron repens (L.) Beauv. # AGRRE]. Herbicide efficacy was compared by measuring botanical and chemical composition and yield of forage. Both chemicals suppressed quackgrass in first-cutting herbage. While sethoxydim at the higher rate was equivalent to pronamide for increasing the proportion of alfalfa in forage, pronamide was superior for increasing seasonal total yield. Late postemergence applications of sethoxydim were more effective for quackgrass regrowth control than earlier spring applications. Controlling quackgrass in late spring resulted in lower crude protein (CP) content in first-cutting forage than did controlling it in fall. Alfalfa competing with untreated quackgrass had a lower CP content than where quackgrass was controlled with herbicides. All herbicide treatments reduced the neutral-detergent fiber (NDF) of the herbage. As measured by the acid-detergent fiber (ADF) concentration of alfalfa, sethoxydim slightly retarded spring growth of the legume.
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Claims 8
Claim · model-written summary
Both herbicides suppressed quackgrass in first-cutting herbage.
- Taxon
- Alfalfa
Medicago sativat0 - Treatment
- Both chemicalse0
- Interactor
- quackgrasse0weed
- Outcome
- quackgrass in first-cutting herbagee0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Alfalfa (Medicago sativa)”
e0“Both chemicals suppressed quackgrass in first-cutting herbage.”
Claim · model-written summary
Higher-rate sethoxydim was equivalent to pronamide for increasing alfalfa proportion in forage.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- sethoxydim at the higher ratee0
- Outcome
- proportion of alfalfa in foragee0
- Direction
- increasinge0
- Comparator
- pronamidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Alfalfa (Medicago sativa)”
e0“sethoxydim at the higher rate was equivalent to pronamide for increasing the proportion of alfalfa in forage”
Claim · model-written summary
Pronamide was superior to sethoxydim for increasing seasonal total yield.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- pronamidee0
- Outcome
- seasonal total yielde0
- Direction
- increasinge0
- Comparator
- sethoxydime1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Alfalfa (Medicago sativa)”
e0“pronamide was superior for increasing seasonal total yield”
e1“sethoxydim at the higher rate was equivalent to pronamide for increasing the proportion of alfalfa in forage”
Claim · model-written summary
Late sethoxydim application controlled quackgrass regrowth more effectively than earlier spring application.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- Late postemergence applications of sethoxydime0
- Interactor
- quackgrasse0weed
- Outcome
- quackgrass regrowth controle0
- Direction
- more effectivee0
- Comparator
- earlier spring applicationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Alfalfa (Medicago sativa)”
e0“Late postemergence applications of sethoxydim were more effective for quackgrass regrowth control than earlier spring applications”
Claim · model-written summary
Late-spring quackgrass control yielded lower first-cutting forage crude protein than fall control.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- Controlling quackgrass in late springe0
- Interactor
- quackgrasse0weed
- Outcome
- crude protein (CP) content in first-cutting foragee0
- Direction
- lowere0
- Comparator
- controlling it in falle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Alfalfa (Medicago sativa)”
e0“Controlling quackgrass in late spring resulted in lower crude protein (CP) content in first-cutting forage than did controlling it in fall”
Claim · model-written summary
Alfalfa with untreated quackgrass had lower crude protein than herbicide-controlled stands.
- Taxon
- AlfalfaMedicago sativae0
- Treatment
- untreated quackgrasse0
- Interactor
- quackgrasse0weed
- Outcome
- CP contente0
- Direction
- lowere0
- Comparator
- quackgrass was controlled with herbicidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Alfalfa competing with untreated quackgrass had a lower CP content than where quackgrass was controlled with herbicides”
Claim · model-written summary
All herbicide treatments reduced forage neutral-detergent fiber.
- Taxon
- AlfalfaMedicago sativat0
- Treatment
- All herbicide treatmentse0
- Outcome
- neutral-detergent fiber (NDF) of the herbagee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Alfalfa (Medicago sativa)”
e0“All herbicide treatments reduced the neutral-detergent fiber (NDF) of the herbage”
Claim · model-written summary
Sethoxydim slightly retarded alfalfa spring growth as assessed by acid-detergent fiber.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- sethoxydime0
- Outcome
- spring growth of the legumee0
- Direction
- retardede0
- Qualifier
- acid-detergent fiber (ADF) concentratione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As measured by the acid-detergent fiber (ADF) concentration of alfalfa, sethoxydim slightly retarded spring growth of the legume”
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See all 9 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.