Claim · model-written summary
Without herbicide, weed biomass in delayed orchardgrass sowing treatments was at least 4.5 times greater by the third harvest.
- Taxon
- alfalfa
Medicago sativae1 - Treatment
- 4 and 5 wk after planting treatments not treated with herbicidee0
- Outcome
- weed biomasse0
- Direction
- greatere0
- Value
- at least 4.5 timese0
- Comparator
- comparable glyphosate treatmentse2
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“weed biomass in the 4 and 5 wk after planting treatments not treated with herbicide was at least 4.5 times greater”
e1“establishing alfalfa ( Medicago sativa L.)‐grass mixtures”
e2“comparable glyphosate treatments”
Title
Potential for Delayed Orchardgrass Seeding during Glyphosate‐Resistant Alfalfa Establishment
Bryan L. Dillehay; William S. Curran; Marvin H. Hall Agronomy Journal 2009. doi:10.2134/agronj2008.0132x
Other claims from this paper (8)
- Observation Orchardgrass established more slowly than alfalfa.
- Intervention effect Glyphosate increased alfalfa content at first harvest by 17 to 35%.
- Intervention effect Glyphosate reduced or left orchardgrass content similar at first harvest.
- Intervention effect Glyphosate reduced weed content by 75 to 90% at first harvest.
- Intervention effect Orchardgrass content in delayed sowing without herbicide was the same or less than with comparable glyphosate treatments.
- Observation Forage composition and weed control differences from establishment dissipated in the second year.
- Intervention effect Two years after establishment, simultaneous orchardgrass sowing followed by glyphosate lowered orchardgrass content only in the first two cuttings.
- Recommendation The authors do not generally recommend simultaneous orchardgrass sowing followed by glyphosate.