Claim · model-written summary
Low-density yield loss occurred only with season-long interference.
- Taxon
- corn
Zea mays subsp. mayse0 - Treatment
- waterhemp was allowed to remain with corn season longe0
- Interactor
- waterhempe0weed
- Outcome
- yield lossese0
- Direction
- lossese0
- Qualifier
- low densitiese0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At low densities, yield losses did not occur unless waterhemp was allowed to remain with corn season long.”
Title
Late-Emerging Common Waterhemp (Amaranthus rudis) Interference in Conventional Tillage Corn
Joseph C. Cordes; William G. Johnson; Peter Scharf; et al. Weed Technology 2004. doi:10.1614/wt-03-185r
Other claims from this paper (8)
- Observation High waterhemp densities caused detected nitrogen stress at four of six timings.
- Observation Lower waterhemp densities had detected nitrogen stress at one of six timings.
- Observation High densities had water stress at five of six timings.
- Observation Low densities had no observed water stress at removal timings.
- Intervention effect High waterhemp densities reduced corn yield when weeds reached 15 cm.
- Intervention effect Uncontrolled high waterhemp densities reduced yield 36%.
- Association Waterhemp was interpreted as less competitive than three other pigweeds.
- Recommendation Low densities of late waterhemp do not warrant removal to protect yield.