Claim · model-written summary
Three-year rotations controlled winter annual grass weeds better than two-year rotations.
- Taxon
- Winter Wheat
Triticum aestivumt0 - Treatment
- 3-yr rotationse0
- Interactor
- winter annual grass weedse0weed
- Outcome
- control of the winter annual grass weedse0
- Direction
- superiore0
- Comparator
- 2-yr rotationse0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The 3-yr rotations were economically competitive with 2-yr rotations and provided superior control of the winter annual grass weeds.”
t0“Winter Wheat”
Title
Cropping Systems to Control Winter Annual Grasses in Winter Wheat (Triticum aestivum)
Oleg Daugovish; Drew J. Lyon; David D. Baltensperger Weed Technology 1999. doi:10.1017/s0890037x00045012
Other claims from this paper (8)
- Observation Jointed goatgrass density averaged 8 plants/m 2 across rotations.
- Observation Feral rye density averaged less than 0.1 plant/m 2 across rotations.
- Intervention effect Downy brome density was below 0.5 plant/m 2 for both rotation lengths with no treatment difference.
- Observation Winter annual grasses persisted after two cycles of three-year rotations.
- Intervention effect Weed density after two three-year cycles was tenfold lower than after one cycle.
- Intervention effect Weed density after three-year rotations was over 100-fold lower than after two-year rotations.
- Observation Wheat grain contamination with dockage and foreign material followed the weed density trend.
- Observation Three-year rotations were economically competitive with two-year rotations.